- #1 Taur
97% 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 40%, RTS 16.3%, Robots 10.1%, Strategy 10%, Sci-fi 7%
Why You'll Like It: This title features intense, action-oriented tower defense where you control a powerful weapon platform to fend off massive robotic armies.
- #2 Armed to the Gears
96% matchMixed63% of 212 reviews2020
Dev: Deonn Games
Windows
Median: 3.3 hrsMean: 3.8 hrs≥1hr: 94%
Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!
Why similar: Tower Defense 23.7%, RTS 22.5%, Cyberpunk 15.8%, Isometric 12.5%, Top-Down 9%
Why You'll Like It: This game captures the top-down, action-RTS feel of Robowars by putting you in control of a unit defending against waves of enemies.
- #3 Sanctum 2
96% matchVery Positive90% of 14,356 reviews2013
Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
Windows · Mac · Linux
Median: 2.8 hrsMean: 6.7 hrs≥1hr: 85%
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Why similar: Tower Defense 74.8%, Strategy 10.3%, Sci-fi 8.7%, Action 3.9%, Indie 1.8%
Why You'll Like It: This game perfectly mirrors the hybrid nature of Robowars by combining first-person shooter action with deep tower defense strategy.
- #4 IRON GUARD
95% 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: Action RTS 22.6% ★, Tower Defense 17.3%, RTS 16.2%, Robots 10.5%, Military 7.9%
Why You'll Like It: A sci-fi tower defense game that emphasizes tactical placement and active defense against robotic threats.
- #5 Anomaly: Warzone Earth
94% matchVery Positive87% of 4,668 reviews2011
Dev: 11 bit studios
Windows · Mac · Linux
Median: 2.4 hrsMean: 11.0 hrs≥1hr: 88%
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Why similar: Tower Defense 40.6%, Strategy 21.4%, RTS 13.7%, Sci-fi 10.3%, Top-Down 5%
Why You'll Like It: It flips the tower defense genre on its head by putting you in control of the attacking force in an action-heavy RTS environment.
- #6 Orcs Must Die! 2
94% matchVery Positive92% of 19,505 reviews2012
Dev: Robot Entertainment
Windows
Median: 5.5 hrsMean: 11.9 hrs≥1hr: 91%
You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.
Why similar: Tower Defense 79.6%, Strategy 11.6%, Action 5.8%, Indie 2%, Singleplayer 1.2%
Why You'll Like It: It is a definitive action-tower defense hybrid that requires you to actively participate in combat alongside your defensive traps.
- #7 Mechs V Kaijus - Tower Defense
93% matchVery Positive84% of 529 reviews2022
Dev: Doble Punch Games
Windows
Median: 6.8 hrsMean: 13.2 hrs≥1hr: 83%
Mechs V Kaijus is an addictive hardcore tower defense gameplay. In Mechs V Kaijus you take on the role of Commander of a powerful Mechs squadron. Improve your Mech, strategically place towers and factories on the battlefield. Deploy support units on the battlefield, and save our civilization.
Why similar: Tower Defense 83.4%, Strategy 9.8%, Action 3.2%, Indie 2.9%, Singleplayer 0.7%
Why You'll Like It: This game focuses on mech-based combat and tower defense, providing a similar sci-fi spectacle to Robowars.
- #8 Dungeon Defenders
92% matchVery Positive93% of 18,745 reviews2011
Dev: Chromatic Games
Windows
Median: 9.2 hrsMean: 42.0 hrs≥1hr: 89%
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
Why similar: Tower Defense 59%, PvE 20.1%, Strategy 11.2%, 3D 7.1%, Singleplayer 2.6%
Why You'll Like It: A classic action-RPG and tower defense hybrid that emphasizes active combat and character-based defense management.
- #9 2112TD: Tower Defense Survival
91% matchVery Positive88% of 428 reviews2023
Dev: Refinery Games
Windows
Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.
Why similar: Tower Defense 30.3%, Isometric 18.7%, PvE 11.7%, Top-Down 10.7%, Sci-fi 9.7%
Why You'll Like It: A polished, sci-fi tower defense game that focuses on tactical unit placement and survival against overwhelming odds.
- #10 Operation: Polygon Storm
91% matchMostly Positive71% of 285 reviews2024
Dev: Toxic Studio
Windows
Median: 48 minMean: 5.3 hrs≥1hr: 49%
A fastpaced, military tug-of-war game with minimal micromanagement. Choose and deploy from a mix of specialized military units to overwhelm the enemy. Experiment with a huge variety of unit compositions, synergies, abilities, and upgrades to lead your army to victory!
Why similar: Action RTS 35% ★, Tower Defense 20%, RTS 18.3%, Military 11.3%, War 6.8%
Why You'll Like It: This game functions as a modern action-RTS with tower defense elements, focusing on large-scale tactical warfare.
- #11 Mindustry
89% 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 53.8%, RTS 21.2%, Strategy 13%, PvE 8.9%, Action 1.2%
Why You'll Like It: This title blends tower defense with resource management and RTS mechanics, requiring constant active engagement to maintain your defenses.
- #12 Road Defense: Outsiders
90% matchVery Positive84% of 159 reviews2023
Dev: Minicactus Games
Windows
Median: 1.9 hrsMean: 2.5 hrs≥1hr: 60%
Protect vehicles on the road and survive! Road Defense: Outsiders is a game that combines elements of the 'roguelike' and 'tower defense' genres. Upgrade the towers and your own skills to be able to annihilate all the life around you!
Why similar: Action Roguelike 30.9%, Tower Defense 30.8%, Isometric 29.2%, Action 4.4%, Indie 3.1%
Why You'll Like It: It combines roguelike progression with top-down tower defense, emphasizing active combat and constant upgrades.
- #13 Creeper World 4
89% 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 28.5%, RTS 25.1%, War 14.5%, Top-Down 10%, Sci-fi 7%
Why You'll Like It: This unique RTS-tower defense hybrid features a fluid, encroaching enemy that requires active tactical management to survive.
- #14 They Are Billions
86% matchVery Positive85% of 50,609 reviews2019
Dev: Numantian Games
Windows
Median: 14.1 hrsMean: 56.0 hrs≥1hr: 91%
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
Why similar: RTS 43.7%, Tower Defense 37.7%, Strategy 13.5%, Isometric 3.9%, Singleplayer 0.8%
Why You'll Like It: It offers a high-stakes survival experience that forces you to balance base-building with active tactical defense against massive swarms.
- #15 Siege of Centauri
88% 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 26.1%, Isometric 18.6%, PvE 13.1%, Robots 11.5%, War 10.3%
Why You'll Like It: A sci-fi tower defense game that emphasizes large-scale battles and tactical defense against massive enemy swarms.
- #16 Xeno Command
87% matchVery Positive84% of 55 reviews2022
Dev: ChillyRoomPub: ChillyRoom
Windows
Defend galaxy against Alien invasion in the RTS offline game with roguelike fun
Why similar: Action RTS 39.7% ★, Tower Defense 21.5%, RTS 19.6%, Top-Down 7.8%, Strategy 5.7%
Why You'll Like It: This action-RTS features roguelike elements and tactical combat that feels very similar to the strategic depth of Robowars.
- #17 Super Sanctum TD
86% 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 46%, Isometric 23.4%, Sci-fi 8.6%, Strategy 8%, Top-Down 4.3%
Why You'll Like It: A top-down, isometric tower defense game that focuses on classic strategic placement and wave management.
- #18 Infested Planet
85% 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 32.5%, RTS 28%, Strategy 13.3%, Top-Down 12.1%, Sci-fi 7.1%
Why You'll Like It: A fast-paced action-RTS where you lead a squad to clear out alien infestations, capturing the intensity of Robowars' combat.
- #19 Nuke Them All
84% matchVery Positive83% of 129 reviews2024
Dev: Indie PapaMikePub: GameEraStudios
Windows · Mac · Linux
An RTS classic reborn with a twist. Time is of the essence, Commander! Capture the flags, conquer the territories, and eliminate the enemy fort. And finally, nuke them all! This old-school sci-fi Indie real time strategy game, crafted by devoted team, revives the genre's enduring allure.
Why similar: Action RTS 27.9% ★, RTS 18.4%, Tower Defense 15.2%, Isometric 11.7%, Cyberpunk 11.2%
Why You'll Like It: This title blends RTS and action-tactics, requiring you to manage defenses and launch counter-attacks in real-time.
- #20 Towerful Defense: A Rogue TD
82% matchMostly Positive73% of 227 reviews2024
Dev: Mini Fun Games
Windows · Mac · Linux
Median: 2.1 hrsMean: 4.2 hrs≥1hr: 67%
A roguelike tower defense where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and unique effect items to craft powerful builds that lead you to victory.
Why similar: Tower Defense 33.5%, Action Roguelike 26.4%, Deckbuilding 21%, Top-Down 8.6%, Strategy 7.7%
Why You'll Like It: It integrates roguelite mechanics into the tower defense genre, offering a dynamic and challenging experience.
- #21 Tower Wars
84% matchMostly Positive72% of 1,753 reviews2012
Dev: SuperVillain Studios
Windows · Mac
Median: 2.4 hrsMean: 6.8 hrs≥1hr: 88%
Tower Wars combines elements of tower defense, RTS, and all-out multi-player mayhem to bring you a completely unique experience, delivered with a fun and funny not-so-old world style!
Why similar: Tower Defense 81.9%, Strategy 13.5%, Indie 2.4%, Action 1.8%, Singleplayer 0.4%
Why You'll Like It: This competitive tower defense game adds a layer of RTS strategy by allowing you to send units to attack your opponent's base.
- #22 Tower Dominion
80% matchVery Positive86% of 4,827 reviews2025
Dev: Parallel 45 Games
Windows
Median: 11.7 hrsMean: 21.5 hrs≥1hr: 90%
Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!
Why similar: Tower Defense 30.5%, RTS 22.8%, Isometric 12.1%, Military 10.4%, War 8.3%
Why You'll Like It: This game combines base-building and tower defense with RTS elements to create a strategic, roguelike experience.
- #23 VOIDCRISIS
83% matchMixed54% of 141 reviews2022
Dev: HEXADRIVE Inc.
Windows
"VOIDCRISIS" is a four-player tower offense game on an undulating battlefield. Operate combat bio-machines called VA (Vital Armor) drawn with dynamic mechanical art shaders and work together to clear high-difficulty stages.
Why similar: Action RTS 28.2% ★, Tower Defense 14.5%, War 12.8%, Action Roguelike 11.6%, Robots 11.6%
Why You'll Like It: A high-octane action-RTS featuring mechs and robots that captures the sci-fi combat aesthetic of Robowars.
- #24 Everwarder
81% matchVery Positive88% of 81 reviews2025
Dev: qLatePub: indie.io
Windows · Mac · Linux
Everwarder is a refreshing take on the tower defense genre, blending roguelite mechanics with a time-based survival concept. Fight against the encroaching darkness and fend off emerging enemies. Collect artifacts, buy upgrades, discover ancient structures, unlock new units and more!
Why similar: Tower Defense 39.3%, Cyberpunk 24.7%, Top-Down 14.1%, Strategy 10.2%, Sci-fi 10.2%
Why You'll Like It: A survival-focused tower defense game that emphasizes building and active management to protect your core.
- #25 Cartridge Defense
82% matchVery Positive92% of 100 reviews2022
Dev: Out Gaming
Windows
Cartridge Defense is a tower defense game with over 300 distinct collectible cards that you will use to create your own decks to defend against robots in the cyberpunk inspired future. Play cards (cartridges) to spawn towers, upgrades, special abilities and more in a campaign or rogue-like mode.
Why similar: Tower Defense 26.1%, Deckbuilding 18.8%, Cyberpunk 18.4%, PvE 10.5%, Top-Down 10%
Why You'll Like It: This game uses a unique card-based system to manage towers, blending roguelike deckbuilding with classic tower defense.
- #26 D.O.T. Defence
81% matchVery Positive86% of 139 reviews2025
Dev: Rattleaxe Games
Windows · Linux
Welcome to the frontlines! Build towers, muster armies, and conquer the map. Challenge yourself in the single-player campaign following the Chroma Wars, survive relentless waves in solo defense, or battle it out in local matches against friends and AI bots. Victory comes with the last HQ standing!
Why similar: Action RTS 31.1% ★, Tower Defense 19.6%, RTS 18.6%, Military 13.1%, PvE 10.1%
Why You'll Like It: A minimalist action-RTS that focuses on fast-paced tower defense and auto-battler mechanics.
- #27 ReEarth
79% matchMostly Positive76% of 117 reviews2024
Dev: Jiangzuogongfang Shanghai Game Co.,Ltd
Windows
ReEarth is an exciting TD & (RTS) indie game. Here, you will play as humanity's last hope. You will fend off the oncoming swarms by continuously building your base and dispatching various types of units. Prepare for the challenge and save the future of humanity!
Why similar: RTS 35.2%, Tower Defense 34%, War 13.9%, Strategy 10.2%, 3D 5.8%
Why You'll Like It: It merges RTS and RPG elements with tower defense, providing a deep strategic experience in a sci-fi setting.
- #28 GemCraft - Frostborn Wrath
79% matchVery Positive89% of 2,818 reviews2020
Dev: Game in a Bottle
Windows
Median: 3.9 hrsMean: 38.1 hrs≥1hr: 90%
The epic tower defense dark fantasy journey continues! Create powerful gems with various abilities and take on the battle against an endlessly flowing army of monsters, and face the growing darkness as you fight your way back towards the Spiritforge.
Why similar: Tower Defense 36.9%, RTS 33.7%, Top-Down 14.2%, Strategy 9.2%, Action 3.8%
Why You'll Like It: A highly strategic tower defense game that allows for complex trap combinations and deep tactical customization.
- #29 Iron Harvest
78% matchMostly Positive73% of 15,723 reviews2020
Dev: KING ArtPub: Prime Matter
Windows
Median: 3.2 hrsMean: 12.0 hrs≥1hr: 75%
A classic real-time strategy game with an epic single player campaign, multiplayer & coop, set in the alternate reality of 1920+
Why similar: RTS 54.6%, War 21.8%, Strategy 13.9%, Sci-fi 6.1%, Action 2.5%
Why You'll Like It: While primarily an RTS, its focus on tactical unit combat and base defense provides a similar strategic feel to Robowars.
- #30 Defense Grid: The Awakening
78% 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 76.7%, Strategy 10.9%, Sci-fi 9.3%, Indie 1.9%, Singleplayer 1.2%
Why You'll Like It: A quintessential tower defense game that offers deep strategic planning and a classic sci-fi atmosphere.
- #31 CARNAGE OFFERING Tower Defense
77% matchVery Positive90% of 306 reviews2023
Dev: FuturtechPub: Nova's Army
Windows
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Why similar: Tower Defense 47.7%, RTS 38%, Strategy 12%, Action 1.4%, Indie 0.9%
- #32 Towerful Defense: Prologue
76% matchVery Positive88% of 75 reviews2024
Dev: Mini Fun Games
Windows · Mac · Linux
A tower defense action roguelike where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and items to craft powerful builds that lead you to victory.
Why similar: Action RTS 23.5% ★, Tower Defense 19.4%, RTS 14.9%, Action Roguelike 14.8%, Deckbuilding 13.3%
- #33 Cyber Tower 2048
75% matchVery Positive87% of 101 reviews2025
Dev: Galactic Geckon
Windows
Cyber Tower 2048 is an action tower defense game where players fight insectoids by building defenses and developing tactics.
Why similar: Tower Defense 45.4%, Robots 25.9%, Top-Down 9.9%, Sci-fi 6.8%, Action 6.4%
- #34 Defense Of Greece TD
76% matchMixed67% of 91 reviews2016
Dev: First Games InteractivePub: First Games Interactive
Windows · Mac
Median: 3.0 hrsMean: 68.1 hrs≥1hr: 90%
Ancient Greece under siege. Steam engines roar, bronze towers rise, and waves of soldiers and machines march against you.
Why similar: Tower Defense 48.1%, RTS 14%, Strategy 12.4%, Isometric 8.7%, Military 6.7%
- #35 RoBoRumble
75% matchMostly Positive72% of 307 reviews2015
Dev: MetropolisPub: TopWare Interactive ACE
Windows · Mac
Median: 4.3 hrsMean: 8.4 hrs≥1hr: 96%
Build powerful battle robots from components like Chassis, Weapon and Booster. The battle’s starting and you’re right in it – with freely definable camera perspectives, spectacular effects, unlimited zoom and scroll, colored light sources, terrain morphing and 3D sound. Pure action – pure excitement!
Why similar: Strategy 94.7%, Indie 5.3%
- #36 Space Cycle
71% matchVery Positive94% of 198 reviews2024
Dev: Some Sugar Studio
Windows
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!
Why similar: Tower Defense 60.7%, Sci-fi 18.3%, Strategy 15.7%, Indie 3.2%, Singleplayer 2.2%
- #37 Northend Tower Defense
71% matchMostly Positive75% of 1,398 reviews2024
Dev: Northend Games
Windows
Median: 1.4 hrsMean: 3.5 hrs≥1hr: 58%
Jump into a realtime strategy, action filled battlefield, deploy relentless soldiers, unlock powerful troops and vehicles, upgrade your army, decimate the enemy. If that's not enough, jump into a chaotic Zombie mode, with traps, fun upgrades, and a new gameplay!
Why similar: Action RTS 35% ★, Tower Defense 25.2%, Military 13.5%, War 13.5%, Strategy 6.5%
- #38 Axon TD: Uprising - Tower Defense
71% matchVery Positive87% of 722 reviews2024
Dev: Element Studios
Windows
Median: 3.6 hrsMean: 9.8 hrs≥1hr: 75%
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.
Why similar: Tower Defense 29.8%, RTS 23.3%, PvE 13.6%, Robots 10.2%, Sci-fi 7.9%
- #39 Cluckmech Oasis
70% matchVery Positive88% of 3,463 reviews2024
Dev: BlackLightPub: Mammorize
Windows · Mac
Median: 7.2 hrsMean: 15.5 hrs≥1hr: 85%
Cluckmech Oasis, a top-down shooting Roguelike tower defense game. Play as the Warcluck and lead your team of animal heroes in a fight for survival. Collect, build and upgrade defenses, and engage in intense battle against waves of plant enemies.
Why similar: Tower Defense 56%, Top-Down 15.9%, Strategy 15.6%, Sci-fi 6.6%, Action 5.3%
- #40 League TD
72% matchVery Positive87% of 79 reviews2023
Dev: Wondarabyte
Windows
"League Tower Defense" is a strategy tower defense game that combines unique defense towers and various upgradeable components to unleash different attack effects. Come and build your perfect defense line.
Why similar: Tower Defense 35.9%, Old School 15.9%, War 12.8%, Top-Down 10.6%, Strategy 9.6%
- #41 Rogue Command
70% matchVery Positive92% of 546 reviews2024
Dev: feneq
Windows
Classic RTS gameplay fused with a modern roguelite. Shape your build each run by assembling an evolving arsenal of powerful units and facilities. Harvest resources, build out your base. Raise your army and call down orbital strikes to overcome the forces threatening your survival.
Why similar: Action RTS 29.3% ★, RTS 18.2%, Deckbuilding 13.4%, Action Roguelike 12.9%, Military 11.9%
- #42 XENOBREAKERS: Classic Tower Defense
70% matchVery Positive86% of 83 reviews2025
Dev: Couch Potato Studios
Windows
Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system. Protect them from giant bugs, malfunctioning droids and more...
Why similar: Strategy 25.9%, Sci-fi 23.6%, Robots 19%, Tower Defense 10.7%, 3D 10.5%
- #43 Holo vs Robo
68% matchVery Positive97% of 473 reviews2026
Dev: Pompmaker1Pub: holo Indie
Windows
Median: 2.5 hrsMean: 4.7 hrs≥1hr: 80%
Build a strong defense of hololive dolls to defeat a robot army in this exciting hololive-themed tower defense game!!
Why similar: Tower Defense 44.3%, Robots 19.7%, Strategy 18.7%, PvE 7.1%, Sci-fi 6.7%
- #44 Molten Armor
74% matchMixed62% of 60 reviews2017
Dev: Brutal Muse
Windows
Molten Armor is an action tower defense game with a non-linear story in sci-fi setting! Command defenses and stop hordes of enemies! Fight on land, sea and in the skies!Decisions taken in the heat of battle will change the course of the war.
Why similar: Tower Defense 28.4%, RTS 25.8%, War 9.8%, Top-Down 8.1%, Strategy 8%
- #45 Spoids
73% 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 45.9%, Strategy 21.7%, Old School 11.4%, Sci-fi 8%, Action 7.2%
- #46 Warfront Defenders
74% matchMixed42% of 53 reviews2017
Dev: Flying Robot Studios
Windows
Median: 3.0 hrsMean: 3.6 hrs≥1hr: 88%
The gameplay is inspired by famous last stands from some of history's deadliest conflicts, such as the Second World War and the Sino-Japanese War. A hybrid of Tower Defense and Real-Time Strategy with a lot of replay value.
Why similar: Action RTS 30.8% ★, RTS 20.3%, Tower Defense 19.9%, Military 8.3%, War 6.9%
- #47 Anomaly Korea
73% matchMostly Positive78% of 792 reviews2013
Dev: 11 bit studios
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.4 hrs≥1hr: 79%
Exclusively brought to Steam for PC, Mac and Linux in Anomaly Bundle, Anomaly Korea is an expansion campaign to Anomaly Warzone Earth. The alien robots are back and this time they’ve got Korea in their sights. It’s your job to lead a squad into fierce fire-fights and fend off the alien invasion.
Why similar: Tower Defense 42%, Strategy 29.2%, Sci-fi 11.2%, Action 10.1%, Top-Down 4.9%
- #48 Defense of Egypt: Cleopatra Mission
73% matchMostly Positive72% of 173 reviews2016
Dev: First Games Interactive
Windows · Mac
Median: 3.1 hrsMean: 5.1 hrs≥1hr: 91%
Defend the land of the Pharaohs. Build towers, unleash powers, and hold the line in Ancient Egypt.
Why similar: Tower Defense 66.4%, Strategy 16.8%, Action 7.1%, War 4.2%, Indie 3%
- #49 Alien Robot Monsters
72% matchVery Positive85% of 124 reviews2015
Dev: Kraftix Games
Windows · Mac · Linux
Median: 7.0 hrsMean: 11.9 hrs≥1hr: 95%
Epic sci-fi tower defense action with 16-bit era look and feel, pitching your colonists against an almost endless horde of hostile alien robots who strongly oppose your attempts of colonizing their planet! Deluxe version includes the soundtrack!
Why similar: Tower Defense 56.4%, Strategy 25.8%, Action 11.2%, Indie 6.6%
- #50 Sunstone War
68% matchVery Positive100% of 52 reviews2024
Dev: Blukulélé
Windows · Mac · Linux
Sunstone War is a unique Action game with Tower Defense element where you can carry EVERYTHING! Move towers, toss away enemies, carry obstacles, upgrade skills and journey through lands to protect your village from calamity!
Why similar: Action RTS 35.5% ★, Tower Defense 24.9%, RTS 23.1%, Top-Down 8.8%, Strategy 6.5%
- #51 IDUN - Frontline Survival
67% matchMostly Positive79% of 671 reviews2025
Dev: IDUN InteractivePub: Surefire.Games
Windows · Mac · Linux
Median: 5.1 hrsMean: 10.9 hrs≥1hr: 76%
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
Why similar: Tower Defense 26%, RTS 24.2%, War 13.2%, Top-Down 9.9%, Sci-fi 8.4%
- #52 Space Raiders in Space
69% matchVery Positive95% of 152 reviews2020
Dev: Apollo Interactive S.L.Pub: Destructive Creations
Windows
Median: 1.5 hrsMean: 12.4 hrs≥1hr: 58%
Space Raiders in Space is a wave defense roguelike mixing squad management and tower defence mechanics. Command your almost competent crew to loot weapons and supplies, build defenses, and fight their way through the Bugpocalypse.
Why similar: Action RTS 23.4% ★, Tower Defense 18.4%, RTS 14.7%, Action Roguelike 11.6%, Isometric 8.7%
- #53 Repel The Rifts
66% 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 52.5%, Isometric 19.8%, Sci-fi 15.8%, Strategy 9.5%, Indie 1.3%
- #54 Mechanibot
69% matchVery Positive92% of 63 reviews2022
Dev: Jon Nielsen
Windows
In this tactical rogue-like auto battler, you'll build your unique team of robots and keep them alive as they fight. Battle through waves of enemies as you travel from planet to planet on a mission to fix the sun. Strategize, protect, survive. A Mechanibot's wrench never rests.
Why similar: Action Roguelike 34%, Deckbuilding 27.3%, Robots 14.3%, Strategy 13.2%, Sci-fi 5.6%
- #55 EverSiege: Untold Ages
66% matchMostly Positive73% of 801 reviews2026
Dev: Tindalos InteractivePub: Dear Villagers
Windows
Retreating ends here. Defend Bastion against evil hordes, reclaim lost powers, rebuild ancient ruins, and adapt your tactics to reverse the siege. Shape your playstyle in this hero-strategy rogue-lite solo or co-op up to 3 players.
Why similar: Action RTS 32.5% ★, Tower Defense 18.3%, RTS 16.6%, PvE 9.9%, Top-Down 7%
- #56 METAL SLUG ATTACK RELOADED
67% matchMostly Positive70% of 1,580 reviews2024
Dev: SNK CORPORATION
Windows
Median: 13.0 hrsMean: 25.9 hrs≥1hr: 83%
Hard-core action with easy controls! The METAL SLUG we all love is back as a tower defense game!
Why similar: Tower Defense 55.2%, Deckbuilding 29.4%, Strategy 13.7%, Singleplayer 1.6%
- #57 Dungeon Warfare 3
66% matchMostly Positive79% of 619 reviews2025
Dev: Excidium Inc.
Windows · Mac
Forge invincible defenses with lethal traps and devious machines, and crush relentless waves of adventurers in the ultimate tower defense showdown!
Why similar: Tower Defense 56.7%, PvE 18.1%, Strategy 13.3%, Top-Down 6.4%, Action 2.5%
- #58 Bot Wars
67% matchVery Positive86% of 728 reviews2021
Dev: Frompy GamesPub: Big Play Games
Windows
Bot Wars is an action RTS about managing a squad of kill-bots and their bases as you work to take over all the capture points across the map. Featuring corporate kill bot armies, ranging from a firearms and beverage manufacturer to a lovecraftian burger cult.
Why similar: Robots 47%, Sci-fi 22.3%, Strategy 21.3%, Action 9.4%
- #59 Mech Fortress
65% 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 60.6%, Strategy 14.2%, Top-Down 12.5%, Sci-fi 11.5%, Singleplayer 1.1%