- #1 Besiege
97% matchOverwhelmingly Positive95% of 52,104 reviews2020
Dev: Spiderling Studios
Windows · Mac · Linux
Median: 2.4 hrsMean: 19.1 hrs≥1hr: 71%
Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!
Why similar: Strategy 35.5%, Sandbox 33.9%, Physics 30.6%
Why You'll Like It: It shares the core focus on physics-based, modular construction where you build machines to overcome defensive challenges.
- #2 Mindustry
96% matchOverwhelmingly Positive96% of 25,660 reviews2019
Dev: AnukenDev
Windows · Mac · Linux
Median: 4.9 hrsMean: 26.9 hrs≥1hr: 76%
An open-ended factory management game with RTS and tower defense elements.
Why similar: Tower Defense 49.6%, Strategy 22.5%, Sandbox 12.8%, RTS 12.1%, Indie 3%
Why You'll Like It: It excels at merging modular base-building and automation with tower defense and real-time strategy elements.
- #3 Forts
96% matchVery Positive92% of 24,366 reviews2017
Dev: EarthWork Games
Windows
Median: 6.3 hrsMean: 23.4 hrs≥1hr: 89%
Unleash your creativity and strategic prowess in Forts, the exhilarating physics-based RTS! Design, construct, and customize imposing fortresses, bristling with devastating firepower, and blast your opponent’s buildings to rubble!
Why similar: Strategy 36.4%, Physics 27.8%, Sandbox 25.8%, Indie 10%
Why You'll Like It: This game combines physics-based building with real-time strategy and tower defense, requiring you to construct and defend structures under fire.
- #4 Creeper World 3: Arc Eternal
95% matchOverwhelmingly Positive96% of 4,761 reviews2014
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 7.4 hrsMean: 77.0 hrs≥1hr: 78%
Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.
Why similar: Tower Defense 50.2%, Real-Time with Pause 17.3% ★, Strategy 15.4%, RTS 9.1%, Sci-fi 3.8%
Why You'll Like It: A classic in the genre, it provides a deep strategic experience where you build modular defenses against a fluid, encroaching enemy.
- #5 Particle Fleet: Emergence
94% matchVery Positive92% of 1,261 reviews2016
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 6.7 hrsMean: 24.9 hrs≥1hr: 76%
Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.
Why similar: Strategy 29.8%, Real-Time with Pause 27.5% ★, RTS 16.9%, Indie 10.7%, Tower Defense 10.1%
Why You'll Like It: It offers a tactical, space-based RTS experience that focuses on managing modular fleets against swarming enemies.
- #6 Cosmoteer: Starship Architect & Commander
93% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Real-Time with Pause 49.2% ★, Strategy 22.8%, Sci-fi 17.9%, Indie 10%
Why You'll Like It: You design modular ships block-by-block and command them in physics-based tactical combat.
- #7 Protolife
94% matchVery Positive86% of 465 reviews2018
Dev: Volcanic Giraffe
Windows · Mac
Median: 3.2 hrsMean: 7.7 hrs≥1hr: 74%
Protolife is an unique tower-based strategy game which gives you a direct control over the builder robot in a struggle against the hungry proto-life organism.
Why similar: Tower Defense 41.2%, RTS 23.4%, Strategy 19.4%, Sci-fi 9%, Indie 7%
Why You'll Like It: This game blends tower defense with real-time strategy and base-building in a unique, organic sci-fi setting.
- #8 Nimbatus - The Space Drone Constructor
92% matchMostly Positive79% of 2,144 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.1 hrs≥1hr: 84%
Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.
Why similar: Strategy 44.5%, Sandbox 20.2%, Physics 17.9%, Sci-fi 17.4%
Why You'll Like It: It offers deep modular drone construction with physics-based flight and combat in a space setting.
- #9 Taur
91% matchMostly Positive80% of 2,078 reviews2020
Dev: Echo Entertainment
Windows
Median: 4.2 hrsMean: 6.8 hrs≥1hr: 76%
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
Why similar: Tower Defense 50.6%, Strategy 23.6%, RTS 12.7%, Sci-fi 6.8%, Indie 6.2%
Why You'll Like It: A tactical tower defense game that emphasizes base-building and managing powerful robotic defenses against waves of invaders.
- #10 TerraTech
91% matchVery Positive91% of 24,455 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.2 hrsMean: 33.0 hrs≥1hr: 90%
TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.
Why similar: Sandbox 46.6%, Strategy 27.4%, Physics 16.1%, Indie 10%
Why You'll Like It: This sandbox game focuses on building modular vehicles and bases from scavenged parts to survive in a hostile environment.
- #11 From the Depths
90% matchVery Positive89% of 12,523 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.6 hrs≥1hr: 81%
Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.
Why similar: RTS 30.2%, Strategy 25.3%, Sandbox 23.8%, Physics 20.7%
Why You'll Like It: This is a highly complex modular building game where you construct vehicles and fortresses with realistic physics and weapon systems.
- #12 Infested Planet
89% matchVery Positive94% of 3,014 reviews2014
Dev: Rocket Bear Games
Windows
Median: 3.1 hrsMean: 5.9 hrs≥1hr: 88%
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
Why similar: Tower Defense 35.3%, Strategy 27%, RTS 18.7%, Real-Time with Pause 6.6% ★, Indie 6.4%
Why You'll Like It: It combines real-time strategy with tower defense mechanics as you build structures to hold back massive alien swarms.
- #13 Colony Siege
89% matchVery Positive93% of 257 reviews2020
Dev: Finifugal Games
Windows
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.
Why similar: Strategy 43.8%, Tower Defense 33.3%, RTS 14%, Sci-fi 6.6%, Indie 2.3%
Why You'll Like It: This sci-fi strategy game features heavy tower defense and base-building elements with a focus on tactical placement.
- #14 Space Run
88% matchVery Positive85% of 2,123 reviews2014
Dev: Passtech GamesPub: Focus Entertainment
Windows · Mac · Linux
Median: 5.1 hrsMean: 7.2 hrs≥1hr: 93%
Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!
Why similar: Tower Defense 62.5%, Strategy 24.4%, Sci-fi 6.6%, Indie 6.5%
Why You'll Like It: A unique take on tower defense where you build modular defenses on a moving spaceship to protect cargo from space pirates.
- #15 Artificial Defense
87% matchVery Positive82% of 210 reviews2016
Dev: Thiemo Bolder, ONEMANGAMES
Windows
Median: 3.5 hrsMean: 4.9 hrs≥1hr: 95%
Artificial Defense is a one man made, real time strategy game combining orbital shooter and tower defense components within an electrifying, virtual reality setting. You are the machine, a mighty computer-system defending its servers against swarms of intruding creeps.
Why similar: Strategy 46.7%, Tower Defense 33.3%, Indie 20%
Why You'll Like It: This title focuses on the core tower defense experience with strategic placement and modular upgrades.
- #16 Uncrewed
86% matchMixed69% of 149 reviews2020
Dev: Quite Different Mechanics
Windows
Uncrewed is a real-time strategy game with the ability to design units from scratch. Unlike in more traditional RTS, units obey the laws of physics, making design choices especially important.
Why similar: Strategy 40.8%, RTS 29.9%, Sandbox 19.3%, Physics 10.1%
Why You'll Like It: It is a sandbox-heavy RTS that allows for significant customization of units and structures in a tactical environment.
- #17 Siege of Centauri
86% matchMixed66% of 448 reviews2019
Dev: Stardock Entertainment
Windows
Median: 42 minMean: 6.0 hrs≥1hr: 44%
Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.
Why similar: Tower Defense 60%, Strategy 27.8%, Sci-fi 12.1%
Why You'll Like It: Developed by the creators of Ashes of the Singularity, it offers a large-scale tower defense experience with RTS-like tactical depth.
- #18 Reassembly
84% matchVery Positive94% of 4,066 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Sandbox 37.3%, Strategy 36.1%, Indie 12.2%, Sci-fi 8.8%, Physics 5.7%
Why You'll Like It: It allows for intricate modular ship design and features physics-based combat in a vast, procedurally generated universe.
- #19 Mob Factory
84% matchMostly Positive72% of 474 reviews2023
Dev: LiterallyEveryone Games
Windows
Median: 2.0 hrsMean: 7.8 hrs≥1hr: 65%
Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.
Why similar: Tower Defense 50.7%, Strategy 19.3%, RTS 15%, Sandbox 15%
Why You'll Like It: It combines automation and resource management with tower defense, requiring you to build efficient production lines for combat.
- #20 rymdkapsel
85% matchVery Positive83% of 277 reviews2014
Dev: grapefrukt games
Windows · Mac · Linux
Median: 2.1 hrsMean: 4.4 hrs≥1hr: 76%
Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.
Why similar: Tower Defense 44.2%, RTS 25.8%, Strategy 21.4%, Indie 5.3%, Sci-fi 3.3%
Why You'll Like It: A minimalist RTS that focuses on efficient base-building and defensive strategy in a space-themed setting.
- #21 Trailmakers
82% matchVery Positive92% of 34,107 reviews2019
Dev: Flashbulb
Windows
Median: 3.9 hrsMean: 15.4 hrs≥1hr: 86%
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
Why similar: Sandbox 52.2%, Physics 47.8%
Why You'll Like It: This game provides a robust sandbox for building modular vehicles and structures with realistic physics interactions.
- #22 Loopstructor
81% matchVery Positive84% of 372 reviews2024
Dev: Pone Games
Windows
Median: 2.8 hrsMean: 5.9 hrs≥1hr: 77%
This is a strategy game that combines tower defense with Roguelike. Unlike traditional tower defense game, the towers in the game are vehicles that move along ‘loops’.You need to create defense loop and build battle trains to defend against enemy attacks.
Why similar: Tower Defense 44.5%, Strategy 23.7%, RTS 22.9%, Indie 8.9%
Why You'll Like It: It blends tower defense with roguelike elements and modular construction, keeping the gameplay loop fresh.
- #23 Mech Fortress
80% matchVery Positive85% of 216 reviews2026
Dev: Some Sugar Studio
Windows
Mech Fortress is a sci-fi tower defense game where each turret has unique mechanics. You can freely place them on a 5×5 grid, and your goal is to eliminate all enemies!
Why similar: Tower Defense 63%, Strategy 27.7%, Sci-fi 9.3%
Why You'll Like It: A top-down strategy game that features modular mech building and tower defense-style combat.
- #24 Realistic Tower Destruction
83% matchMixed65% of 51 reviews2020
Dev: Nikita Markin
Windows
Game allows you to build many kinds of towers from a variety of bricks and experience their dynamic destruction physics in a sandbox environment.
Why similar: Indie 54.4%, Sandbox 24.8%, Physics 20.9%
Why You'll Like It: This title focuses on the physics of destruction, allowing you to experiment with structural integrity in a sandbox environment.
- #25 Spirits of the Hellements - TD
79% matchVery Positive93% of 338 reviews2022
Dev: Hippo Rider Games
Windows
Assemble legendary Spirits and defend against the endless hordes of Hell. A tower defense where you must shape the battlefield and create a maze using the three Hellements. Use Fire, Lightning, and Wind tiles to trap your enemies, or augment your defenses.
Why similar: Tower Defense 49%, Strategy 25.7%, Sandbox 18.7%, Indie 6.6%
Why You'll Like It: A 3D tower defense game that offers sandbox elements and creative freedom in how you set up your defenses.
- #26 Freaking Meatbags
81% matchVery Positive86% of 173 reviews2015
Dev: Wild FactorPub: Plug In Digital
Windows · Mac · Linux
Median: 36 minMean: 4.7 hrs≥1hr: 37%
Land on a planet, pick up some rocks, leave before the solar system explodes. Oh, and don't die in the nightly robot attacks! Freaking Meatbags is a humorous real-time strategy game that's all about building a base, mixing meatbag DNA, then convincing those dolts to help you gather resources.
Why similar: Tower Defense 34.5%, Strategy 23.5%, Real-Time with Pause 17.8% ★, RTS 12.1%, Indie 7%
Why You'll Like It: A humorous strategy game that incorporates tower defense and base-building with a focus on robotic units.
- #27 Scrap Mechanic
78% matchVery Positive92% of 117,049 reviews2016
Dev: Axolot Games
Windows
Median: 11.1 hrsMean: 57.3 hrs≥1hr: 91%
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
Why similar: Sandbox 47.3%, Physics 40.5%, Indie 12.3%
Why You'll Like It: This sandbox game is centered on engineering modular machines and structures with a robust physics engine.
- #28 Defense Technica
82% matchMostly Negative40% of 188 reviews2013
Dev: Kuno Interactive
Windows · Mac
Median: 3.4 hrsMean: 4.6 hrs≥1hr: 95%
Defense Technica is the next evolution in hardcore tower defense strategy games. Protect the core from an onslaught of unrelenting biomechanical terrors with a powerful range of tower defense units – each with their own upgradable features and methods of attacks.
Why similar: Tower Defense 71.4%, Strategy 21.3%, Indie 7.4%
Why You'll Like It: A polished tower defense game that emphasizes strategic pathing and diverse tower types in a sci-fi setting.
- #29 Main Assembly
78% matchVery Positive84% of 1,337 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 1.0 hrsMean: 7.0 hrs≥1hr: 50%
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.
Why similar: Sandbox 53.3%, Physics 46.7%
Why You'll Like It: It provides a highly flexible robotics construction system that relies on physics and logic to solve complex tasks.
- #30 Dwarf Tower
79% matchMostly Positive71% of 281 reviews2014
Dev: iosoftware
Windows · Mac
Median: 2.4 hrsMean: 4.9 hrs≥1hr: 85%
Dwarf Tower is a turn-based tactics game of tower building and spellcasting. Each turn you develop your tower by placing blocks, constructing rooms, and play various spells. Your tower can have Libraries (store spells), Crystals (generate mana), Dwarf Dwellings (give you dwarves to repair the tower) and some other rooms.
Why similar: Strategy 37.3%, Sandbox 27.9%, Tower Defense 18.9%, Indie 15.9%
Why You'll Like It: A sandbox-style strategy game that incorporates building and defensive mechanics in a unique, blocky aesthetic.
- #31 Creeper World 4
76% matchVery Positive95% of 4,620 reviews2020
Dev: Knuckle Cracker
Windows
Median: 12.2 hrsMean: 29.4 hrs≥1hr: 88%
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.
Why similar: Tower Defense 39.8%, RTS 21.6%, Strategy 17.8%, Physics 13.2%, Sci-fi 7.6%
- #32 X-Morph: Defense
74% matchVery Positive92% of 4,073 reviews2017
Dev: EXOR Studios
Windows
Median: 3.0 hrsMean: 5.5 hrs≥1hr: 85%
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.
Why similar: Tower Defense 58.3%, Strategy 23.6%, Sci-fi 9.6%, Indie 8.4%
- #33 TDS - Tower Defense Strategy
73% matchVery Positive81% of 354 reviews2025
Dev: Blockage
Windows · Mac · Linux
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends. Protect your Basin at all costs. An absolute Tower Defense, Real-Time Strategy Hybrid
Why similar: Tower Defense 52.4%, RTS 30.4%, Strategy 11.9%, Indie 5.4%
- #34 Planetoid
77% matchMixed54% of 104 reviews2017
Dev: GameWriterStudioPub: Conglomerate 5
Windows
Median: 3.4 hrsMean: 4.4 hrs≥1hr: 98%
Planetoid is a physics based building game in which you construct facilities and protect humanoids on the planetoid. Build a facilities which can defeat the enemies on your way.
Why similar: Tower Defense 30.4%, Strategy 25.3%, Indie 21.5%, Sandbox 11.9%, Physics 10.9%
- #35 Planetary Annihilation: TITANS
74% matchVery Positive85% of 14,430 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.4 hrs≥1hr: 73%
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Why similar: RTS 45%, Strategy 35.4%, Sci-fi 13.3%, Indie 6.4%
- #36 Phantom Signal — Sci-Fi Strategy Game
75% matchVery Positive85% of 155 reviews2018
Dev: Veslo Games
Windows · Mac · Linux
Median: 4.6 hrsMean: 5.9 hrs≥1hr: 94%
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.
Why similar: Tower Defense 39.4%, Strategy 36.2%, RTS 9.3%, Sci-fi 9.2%, Indie 5.9%
- #37 War in a Box: Paper Tanks
76% matchMostly Positive71% of 208 reviews2014
Dev: DQ Team
Windows · Mac · Linux
Median: 42 minMean: 9.5 hrs≥1hr: 43%
Build your towers of paper before they get out of the box and make a big mess in the room. Manage the turrets, upgrade and be careful where you put them... every decision can be fatal! Watch out for the air units, they have a different route!
Why similar: Tower Defense 58.9%, Strategy 29.9%, Indie 11.2%
- #38 Spoids
75% matchMostly Positive72% of 115 reviews2017
Dev: AirWave GamesPub: BindleBot
Windows
Median: 3.2 hrsMean: 3.6 hrs≥1hr: 77%
Spoids is a challenging throwback to the original brand of tower defense games. Command the Remote Defense Space Station and respond to distress calls of those who are being attacked by the invaders. Travel from planet to planet using your powerful arsenal to hold back the Spoids.
Why similar: Tower Defense 41.8%, Strategy 37.1%, Indie 15.5%, Sci-fi 5.7%
- #39 Bomb Defense
77% matchVery Negative18% of 116 reviews2017
Dev: Mitorah Games
Windows · Mac · Linux
Median: 12 minMean: 10.2 hrs≥1hr: 25%
A completely different take on the tower defense genre. Combining it with the Puzzle genre, making for a difficult game. Buy traps, bombs, turrets and walls and place them in optimal positions to defend against enemies.
Why similar: Strategy 42.2%, Tower Defense 35.4%, Indie 11.7%, Physics 10.7%
- #40 Dr. Professor Scientist's Weapons Testing Facility
73% matchVery Positive84% of 77 reviews2022
Dev: Cool Smithy Games
Windows
DPSWTF is a base defense game with roguelike elements, where instead of placing towers, you build the best tower of them all. Combine the best projectiles with effective modifiers and push back the incoming hordes. Research them all to conquer the secrets of the Great North!
Why similar: Tower Defense 63.2%, Strategy 25.6%, Sci-fi 11.1%
- #41 Defense Grid: The Awakening
72% matchOverwhelmingly Positive96% of 5,303 reviews2008
Dev: Hidden Path Entertainment
Windows
Median: 4.6 hrsMean: 15.1 hrs≥1hr: 91%
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Why similar: Tower Defense 69.8%, Strategy 18.6%, Sci-fi 6.6%, Indie 5%
- #42 Defense Task Force - Sci Fi Tower Defense
73% matchMixed66% of 53 reviews2018
Dev: ChillX Ltd
Windows
Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.
Why similar: Tower Defense 51.2%, Strategy 28.7%, Indie 11.4%, Sci-fi 8.7%
- #43 Totally Accurate Battle Simulator
68% matchOverwhelmingly Positive98% of 147,242 reviews2021
Dev: Landfall
Windows · Mac
Median: 4.2 hrsMean: 20.0 hrs≥1hr: 80%
Be the leader of wobblers from ancient lands, spooky places, and fantasy worlds. Watch them fight in simulations made with the wobbliest physics system ever created, make your own wobblers in the unit creator and send your army off to fight your friends in multiplayer.
Why similar: Sandbox 33.5%, Strategy 31%, Physics 23.3%, Indie 12.2%
- #44 Project Astra Dominium
70% matchVery Positive90% of 88 reviews2024
Dev: Snob Entertainment UG
Windows · Mac · Linux
Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.
Why similar: Tower Defense 54.6%, Strategy 23.4%, Indie 11.4%, Sci-fi 10.5%
- #45 MarZ: Tactical Base Defense
71% matchMostly Positive78% of 885 reviews2019
Dev: Giant Grey
Windows
Median: 2.5 hrsMean: 5.5 hrs≥1hr: 71%
Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.
Why similar: Tower Defense 43.5%, Strategy 23.3%, RTS 20.6%, Indie 6.9%, Sci-fi 5.8%
- #46 Repel The Rifts
68% matchVery Positive86% of 313 reviews2025
Dev: RefinedBearGamesPub: Goblinz Publishing
Windows · Linux
Repel the Rifts is a roguelite tower defense game where you lead a commander through an alien world, uncovering new terrain each wave, drafting powerful upgrades, and constructing defenses to hold back the chaos.
Why similar: Tower Defense 60.7%, Strategy 20.6%, Sci-fi 14.2%, Indie 4.5%
- #47 Refactor
69% matchVery Positive84% of 465 reviews2022
Dev: GAGAPub: LightOn Game
Windows · Mac
Median: 1.7 hrsMean: 35.9 hrs≥1hr: 60%
Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.
Why similar: Tower Defense 55.6%, Strategy 24.6%, Sci-fi 11.4%, Indie 8.4%
- #48 Element TD 2 - Tower Defense
68% matchVery Positive90% of 3,152 reviews2021
Dev: Element Studios
Windows
Median: 3.3 hrsMean: 13.2 hrs≥1hr: 76%
Element TD 2 sees you combine powerful elements to create unique towers. Prove your defenses against challenging foes, and compete or cooperate with others to determine who has mastered the elements.
Why similar: Tower Defense 51.9%, Strategy 22.3%, RTS 21.4%, Indie 4.3%
- #49 Mineral Defense
67% matchVery Positive91% of 236 reviews2024
Dev: Corestone Games
Windows · Linux
Mineral Defense combines tower defense with roguelite elements and procedural generation. Build paths, unlock upgrades, and unleash powerful synergies to conquer evolving challenges in an ever-expanding world.
Why similar: Tower Defense 60%, Strategy 30.6%, Sci-fi 9.5%
- #50 Planets Under Attack
71% matchMostly Positive73% of 1,241 reviews2012
Dev: Targem GamesPub: Topware Interactive
Windows · Mac
Median: 3.3 hrsMean: 10.0 hrs≥1hr: 86%
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.
Why similar: Strategy 94.4%, Indie 4.2%, Sci-fi 1.4%
- #51 Sandbox Anything
71% matchMostly Positive76% of 71 reviews2019
Dev: Fizzostia
Windows
A creative building-like game, where the objective is to throw physics enabled objects to create structures to allow the objective of the level to be completed. Can be a very challenging puzzler or an easy, sit back and relax game. Includes built in Level Editor and extensive Multiplayer functionality.
Why similar: Tower Defense 39.5%, Strategy 27.1%, Sandbox 23.4%, Indie 10%
- #52 Cortex Command
70% matchMostly Positive72% of 6,051 reviews2012
Dev: Data RealmsPub: Data Realms, LLC
Windows · Mac
Median: 2.4 hrsMean: 5.3 hrs≥1hr: 80%
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!
Why similar: Strategy 80.4%, Sandbox 5.7%, Physics 5.7%, Indie 3.7%, Sci-fi 2.6%
- #53 IRON GUARD
69% matchVery Positive95% of 148 reviews2021
Dev: Xlab Digital
Windows
Median: 2.3 hrsMean: 4.9 hrs≥1hr: 76%
A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.
Why similar: Tower Defense 40.4%, RTS 23.3%, Strategy 20.2%, Sci-fi 10.1%, Indie 6%
- #54 REDCON
70% matchVery Positive85% of 807 reviews2016
Dev: Hexage
Windows
Median: 4.0 hrsMean: 9.8 hrs≥1hr: 71%
Command your own fortress in FTL-like real-time battles! Crush the enemy fortress with unrelenting bombardment or seize it with carefully executed invasion.
Why similar: Strategy 44.5%, Tower Defense 41.9%, Indie 13.6%
- #55 No Creeps Were Harmed TD
67% matchVery Positive89% of 482 reviews2024
Dev: MinMax Games Ltd.
Windows
Median: 2.8 hrsMean: 5.5 hrs≥1hr: 74%
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
Why similar: Tower Defense 60%, Strategy 26.7%, Sci-fi 13.3%
- #56 Super Sanctum TD
69% matchVery Positive87% of 1,575 reviews2013
Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
Windows · Mac
Median: 1.9 hrsMean: 33.2 hrs≥1hr: 75%
Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!
Why similar: Tower Defense 63.6%, Strategy 20.6%, Sci-fi 9.2%, Indie 6.6%
- #57 Habitat
72% matchMostly Negative40% of 261 reviews2016
Dev: 4gencyPub: Versus Evil
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.9 hrs≥1hr: 85%
Habitat is a physics-based space game where you build, fly, and fight with whatever you can find out in space. Upgrade and arm your creations with weapons and structures you find in orbit, fly and explore using rocket physics.Battle deadly enemies in Campaign Mode to save humanity or explore Sandbox Mode for true creative control.
Why similar: Strategy 46.7%, Sandbox 23.5%, Indie 17.9%, Physics 11.8%
- #58 Bee Island
65% matchVery Positive86% of 1,584 reviews2023
Dev: Lemma Arts
Windows
Median: 2.2 hrsMean: 3.5 hrs≥1hr: 72%
Take control of the hive and protect it from enemies. Build factories and defence, research technologies and, if necessary, use nuclear weapons, but do not let the enemies harm the queen!
Why similar: Tower Defense 50.2%, Strategy 21.4%, Physics 16.8%, Sci-fi 11.6%
- #59 Block Tower TD
66% matchVery Positive82% of 76 reviews2023
Dev: MyDreamForever
Windows
Median: 2.0 hrsMean: 4.1 hrs≥1hr: 76%
Block Tower TD is a roguelike tower defense strategy game with interesting innovations. Build a world out of blocks, choose random upgrades to make every run unique.
Why similar: Tower Defense 51.3%, Strategy 27.7%, Sandbox 21%
- #60 BARRICADEZ
67% matchMostly Positive80% of 144 reviews2021
Dev: Fly Penguin inc.
Windows · Mac
Barricadez is a mix of tower defense and survival game. Take on your care robot and explore the underground, find new blueprints, gather resources and build your defenses and traps to survive through the night against a myriad of zombie-like creatures. Your goal: to defend the defenseless cradle.
Why similar: Real-Time with Pause 36% ★, Tower Defense 32.1%, Strategy 16.8%, Physics 8.3%, Indie 6.8%