- #1 Rise of the Cones: Planetary Defense
97% matchPositive92% of 26 reviews2026
Dev: Baris Lab
Windows
Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop. Build towers, shape them with branching upgrades, and figure out how to hold the line.
Why similar: Tower Defense 26.5%, RTS 20.5%, Base Building 17.6%, Sci-fi 9.2%, Strategy 8%
- #2 TechGuardian: Territory Defense
96% matchMixed70% of 26 reviews2025
Dev: Apex HorizonPub: Liquid Meow
Windows
This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.
Why similar: Tower Defense 21.7%, RTS 21.5%, Base Building 12.8%, Futuristic 9.8%, Sci-fi 8.9%
- #3 Stellar Infestation
96% match7 user reviews86% of 7 reviews2025
Dev: YogurtGames
Windows
Dig minerals, manufacture ammunition, and build defense towers to fend off swarms of insects. A tower defense game with light production line elements.
Why similar: Tower Defense 26.7%, RTS 21.2%, Base Building 13.5%, Strategy 10.9%, Sci-fi 10.6%
- #4 Taur
95% matchMostly Positive80% of 2,092 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 34.1%, Base Building 16.4%, RTS 14.4%, Strategy 7.9%, Sci-fi 7.3%
- #5 Automatrons - Tower Defense
94% match6 user reviews67% of 6 reviews2023
Dev: Cold Mass Digital Entertainment
Windows · Mac · Linux
Join our machine legion to conquer the world.
Why similar: Tower Defense 21.6%, RTS 19.4%, Wargame 14.2%, Futuristic 11.2%, War 9.3%
- #6 The Extinction Directive
94% match1 user reviews100% of 1 reviews2025
Dev: CustomBit
Windows
A single-player sci-fi strategy game set in a future where humankind has made the first leap to a distant star system
Why similar: RTS 25.9%, Tower Defense 24.1%, Wargame 16.1%, Strategy 10.4%, Futuristic 9%
- #7 IDUN Prologue - Frontline Survival
93% matchVery Positive89% of 81 reviews2025
Dev: IDUN InteractivePub: Surefire.Games
Windows · Mac · Linux
Step into the arena with IDUN: Prologue, a thrilling slice of our full-length defense RTS where real-time strategy meets rogue-lite chaos. Fight your way through unique mission objectives with overwhelming swarms of enemies.
Why similar: Tower Defense 21.6%, RTS 17.1%, Wargame 13.8%, Base Building 12.5%, Sci-fi 8.7%
- #8 IDUN - Frontline Survival
92% matchMostly Positive79% of 690 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 17.5%, Wargame 17.3%, RTS 16.8%, Base Building 12.9%, Space 9.1%
- #9 Plasma Dome
91% matchNo user reviews2026
Dev: Yoberu
Windows
Plasma Dome is a tactical tower defense with roguelite progression and no predefined paths. Defend your city from an aerial assault of geometric entities from another dimension.
Why similar: Tower Defense 29.3%, RTS 27.3%, Base Building 14.8%, Strategy 11.8%, Futuristic 8.4%
- #10 Space Tower Defense
89% match1 user reviews0% of 1 reviews2026
Dev: KKDM
Windows
A strategic space tower-defense game. Enemies detect, warn, and try to bypass defenses, forcing you to adapt. Combine diverse towers and face unique maps for varied battles. With tense sci-fi atmosphere, it delivers a fresh experience beyond traditional tower defense.
Why similar: RTS 25.3%, Tower Defense 24.3%, Space 11.5%, War 10.8%, Wargame 8%
- #11 Element
90% matchMixed68% of 50 reviews2018
Dev: Flightless
Windows · Mac · Linux
Median: 4.0 hrsMean: 6.7 hrs≥1hr: 91%
Element is a realtime strategy space game for people who don't have time to play realtime strategy space games. Generate energy, mine element, build attack and defence units, and destroy the enemy while maintaining a balance between earth, air and water.
Why similar: RTS 22.1%, Base Building 12.9%, Wargame 12.6%, Space 11.4%, War 10.9%
- #12 Protolife
89% matchVery Positive86% of 469 reviews2018
Dev: Volcanic Giraffe
Windows · Mac
Median: 3.8 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 29.3%, RTS 28%, Base Building 21.1%, Sci-fi 10%, Strategy 6.9%
- #13 Hyperwar
88% matchNo user reviews
Dev: Andreas Steinhorst
Windows
Hyperwar is an RTS game with many classic elements such as base building, research, unit production and resource gathering, but it also contains new approaches and ideas. Paired with modern graphics and a freely moving camera, this game is a completely new experience in the genre.
Why similar: RTS 26.8%, Wargame 20%, Base Building 15.3%, Futuristic 11.7%, Strategy 7.2%
- #14 Atahion - Tower Defense
87% matchNo user reviews2027
Dev: EhtChaos
Windows
Build your defense base to repel alien invaders. Atahion is a strategy and tactical defense game in which you have to extract resources, build defense towers and use bonuses to complete the mission.
Why similar: Tower Defense 32.4%, RTS 28.7%, Base Building 20.3%, Sci-fi 10%, Strategy 7.6%
- #15 银河战争一(Galactic Wars One)
86% match1 user reviews100% of 1 reviews2024
Dev: hidden dragon独游
Windows
A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.
Why similar: Tower Defense 34.9%, Strategy 11.4%, Space 10.2%, War 9.5%, Base Building 8.9%
- #16 Molten Armor
86% 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 24.2%, RTS 22.7%, Wargame 15.4%, Futuristic 10.3%, War 8.4%
- #17 Wonder Defense: Chapter Earth
85% matchMixed69% of 13 reviews2021
Dev: Arif AkcaPub: aaalmost
Windows · Mac
Wonder Defense: Chapter Earth is a strategy game based on Earth and Aliens in which you act as a General to accomplish survive and move to Mars.
Why similar: RTS 20.4%, Tower Defense 19.8%, Base Building 16.9%, Wargame 13.9%, Futuristic 9.6%
- #18 Cosmic Robots
84% matchNo user reviews2026
Dev: Aniode Pub: Aniode
Windows · Mac
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
Why similar: Tower Defense 28.1%, RTS 23.8%, Base Building 10.2%, Space 9.5%, Sci-fi 8.9%
- #19 Defense Builder
84% matchMostly Positive71% of 45 reviews2025
Dev: Aries
Windows
Defense Builder is a sci-fi tower defense game. Players can build various defense towers to resist enemy attacks. There are as many as 36 types of available units, and it features a highly free economic system and defense system.
Why similar: Tower Defense 32.4%, Wargame 19.6%, War 16.7%, Strategy 13.6%, Sci-fi 12.8%
- #20 WarOS
82% matchPositive86% of 44 reviews2025
Dev: The7 Studio
Windows
Step into the world of galactic combat in "WarOS", a Chinese sci-fi game! It creates its own structure, integrating the core gameplay of RTS with the details, plot and growth system of RPG, simplifying complex micro-manipulation, and making the game experience both fun and exhilarating.
Why similar: RTS 21%, Wargame 15.5%, Base Building 14.9%, Space 11.1%, War 10.3%
- #21 JKRobots
83% matchNo user reviews2026
Dev: JKRobots
Windows
A real time strategy game, push the robots off the map to win, but they push back.
Why similar: RTS 36.6%, Tower Defense 30.6%, Base Building 17.1%, Strategy 13.4%, Singleplayer 2.3%
- #22 2089 - Space Divided
82% matchPositive83% of 40 reviews2024
Dev: CoastGames GmbH
Windows
2089 - Space Divided is a classic science fiction real-time strategy game in which you collect resources, build up your base, train troops and destroy your opponents with tactical skill.
Why similar: Tower Defense 18.3%, RTS 17.9%, Wargame 14.5%, Base Building 12.8%, War 9.1%
- #23 Zeta Leporis RTS
81% matchPositive86% of 22 reviews2024
Dev: Jason Gieske
Windows
A sci-fi real-time strategy game. An existential war among asteroids in classic RTS style. Build and defend, produce and upgrade, attack and annihilate!
Why similar: RTS 25.6%, Space 15%, Base Building 14.7%, War 11.8%, Sci-fi 9%
- #24 Within the Range
81% matchMixed56% of 241 reviews2021
Dev: Aries
Windows
This game is no longer updated, do not buy!! RTS with physical details. Formulate strategies based on terrain and unit characteristics
Why similar: RTS 33.3%, Wargame 27%, War 11.7%, Strategy 11.2%, Sci-fi 10.5%
- #25 Fleet Craft
80% matchNo user reviews
Dev: Aries
Windows
"Fleet Craft" is a real-time strategy game with a science fiction theme. Players can build land fleets composed of large tanks, robots and other units. You can customize the weapons on the unit to achieve different functions.
Why similar: RTS 35.6%, Wargame 17%, Strategy 15%, Sci-fi 14%, War 11%
- #26 World Order
79% matchNo user reviews
Dev: TGR Studios
Windows
World order is revolutionary sci-fi real-time strategy, the main feature of which are modular units
Why similar: RTS 25.6%, Wargame 19.3%, Futuristic 10.9%, War 10.1%, Space 9.8%
- #27 Thukothea Defender
79% match6 user reviews50% of 6 reviews2021
Dev: DjokaGames
Windows · Linux
A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!
Why similar: Tower Defense 42.1%, RTS 17%, Base Building 12.3%, Strategy 9.7%, War 6.9%
- #28 Soil
78% matchNo user reviews
Dev: Nuclear Fallow
Windows
Soil is a slow-paced space RTS game where you mine resources, build ships and fight your enemies. Campaign features persistent fleet, research, and optional mission objectives that can affect rest of the missions.
Why similar: RTS 35.5%, Space 16.2%, Strategy 15%, War 13.1%, Sci-fi 12.7%
- #29 ShellMobile: Titan Rampart
75% matchVery Positive98% of 206 reviews2025
Dev: 红景天娱乐
Windows
On the cosmic frontier, humanity has fought alien species for a century. As traditional defenses fall to new-gen alien mechs, tech giant ShellMobile—human-centered at its core—kindles new hope via breakthroughs in extraterrestrial titanium ore research.
Why similar: Wargame 23.3%, RTS 23.1%, Base Building 19.2%, Strategy 8.3%, Sci-fi 7.6%
- #30 Save and Conquer : 8 Years
77% matchPositive92% of 12 reviews2022
Dev: Moglax Studios
Windows
This is a 2D defense game that depicts the near future that may arise from climate change. Unlike the defense game, which is automatically attacked by traditional turrets, it is an attractive game that requires you to defeat the enemy by operating the turret directly with limited power.
Why similar: Tower Defense 34.8%, RTS 30.3%, Wargame 15.8%, Strategy 7.5%, War 5.6%
- #31 Industrial Annihilation
76% matchMostly Negative32% of 424 reviews2024
Dev: Galactic Annihilation
Windows
The next major game in the Planetary Annihilation universe, Industrial Annihilation combines the iconic real-time strategy of the beloved Annihilation games with deep factory-building to deliver a blend of genres unlike any you’ve experienced before.
Why similar: RTS 30.5%, Wargame 20.5%, Base Building 12.5%, Futuristic 12.2%, Strategy 11.2%
- #32 Project VTS
76% match7 user reviews86% of 7 reviews2024
Dev: DT3 Digital
Windows
Project VTS is a real-time TD game. You'll need to build your defence around your base and defend against different enemies from all directions in various terrains of the alien planet.Use your turrets, obstacles, power supply, resource facillities to defend your base.
Why similar: Tower Defense 36.9%, Base Building 21.4%, Futuristic 14.1%, Sci-fi 8%, War 7.6%
- #33 Ad Astra: Sci-Fi Tower Defense
74% match7 user reviews57% of 7 reviews2024
Dev: Azure Moon Games Ltd.
Windows
Lose yourself in an indie solo-dev. treasure that harkens back to arcade classics! All while thumping along to killer retro-inspired beats by Ovani sound. Embark on an epic tower defense adventure against awe-inspiring machine monstrosities, made by a devoted gamer for devoted gamers.
Why similar: Tower Defense 27%, RTS 26.1%, Base Building 19%, Sci-fi 9.6%, Strategy 7.3%
- #34 Phantom Signal — Sci-Fi Strategy Game
75% matchVery Positive85% of 156 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 33.2%, Space 19.3%, Strategy 15.3%, RTS 13.1%, Sci-fi 12.3%
- #35 Sector War
74% matchNo user reviews2026
Dev: Neki4 Electronics
Windows
Embark on an epic space strategy adventure!
Why similar: Tower Defense 33.2%, Wargame 22.1%, Strategy 13.6%, Futuristic 11.1%, Space 9%
- #36 Galaxy Commanders
73% matchNo user reviews
Dev: MagmaByte
Windows
ASSEMBLE AND COMMAND YOUR SPACE FLEET TO VICTORY
Why similar: RTS 26%, Space 17.8%, Tower Defense 11%, War 9.8%, Strategy 9.4%
- #37 Total Tower Engine
73% matchNo user reviews
Dev: RubyRTS
Windows · Mac · Linux
Tired of RNG and card draws? Experience a "Plan first, pay later" economy where construction scales with your income in real time. As the map grows massive, only careful planning. Not a lucky roll, will keep you alive.
Why similar: Tower Defense 35.1%, RTS 32.3%, Base Building 21.6%, Strategy 7.4%, 3D 2.8%
- #38 Halo Wars: Definitive Edition
73% matchVery Positive91% of 9,278 reviews2017
Dev: Ensemble StudiosPub: Xbox Game Studios
Windows
Median: 4.2 hrsMean: 13.4 hrs≥1hr: 84%
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
Why similar: RTS 42%, Base Building 24.6%, War 11.5%, Strategy 11.3%, Sci-fi 8.4%
- #39 Mine Defender
72% match1 user reviews0% of 1 reviews2025
Dev: Rust Power
Windows
Fight with AI-controlled drones, explore the mine and extract resources, upgrade your base and plan your defense. Protect your mine
Why similar: Tower Defense 31%, Base Building 22.3%, Wargame 18.8%, Strategy 12.9%, Futuristic 10.2%
- #40 clickyland
71% matchVery Positive85% of 619 reviews2024
Dev: Sokpop Collective
Windows · Mac
Median: 2.0 hrsMean: 4.4 hrs≥1hr: 65%
clickyland is a tower defense village builder where clicks are your main resource. Use clicks to harvest resources, fight enemies and manage your village, but use them wisely as you only get 20 clicks every day! Can you reach day 100?
Why similar: Tower Defense 35.2%, Base Building 25.2%, RTS 19.8%, Strategy 13.6%, 3D 4.8%
- #41 CARNAGE OFFERING Tower Defense
71% matchVery Positive90% of 309 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 48.5%, RTS 40%, Strategy 11.5%
- #42 A Byte War
70% matchPositive100% of 14 reviews2026
Dev: STELLAR
Windows · Linux
A Byte War is a real time strategy game where you lead a race of block-based machines against a machine threat from another dimension. Construct buildings from blocks arranged in various patterns and leverage your machines to convert the world around you.
Why similar: RTS 24%, Base Building 17.6%, Wargame 15.4%, Tower Defense 8.7%, Sci-fi 8.5%
- #43 Creeper World 4
70% matchVery Positive95% of 4,652 reviews2020
Dev: Knuckle Cracker
Windows
Median: 12.4 hrsMean: 29.9 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 22.6%, RTS 20.6%, Wargame 16.7%, Space 12.1%, War 11.5%
- #44 Stickman World Battle
71% match7 user reviews14% of 7 reviews2024
Dev: Sergey MezhakovPub: Sergey Mezhakov
Windows
Stickman World Battle - new exciting and thrilling real-time strategy with famous stickman heroes!
Why similar: Tower Defense 28.8%, RTS 26.9%, Wargame 19.3%, Strategy 12.3%, War 8.5%
- #45 TowerDefenceDesigner
72% matchNo user reviews2024
Dev: 蓝色章鱼
Windows
A self-built level tower defense game where you compete with friends and online players to see whose creativity is more popular. You control the game content, design the difficulty level, come create your own tower defense game!
Why similar: Tower Defense 23%, RTS 17.8%, Base Building 17.3%, Space 12.5%, War 11.8%
- #46 Warpips
69% matchVery Positive87% of 5,087 reviews2022
Dev: Skirmish Mode GamesPub: Daedalic Entertainment
Windows
Median: 2.0 hrsMean: 8.3 hrs≥1hr: 66%
Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!
Why similar: Tower Defense 26.7%, RTS 26%, War 14.3%, Base Building 12.2%, Wargame 10.8%
- #47 Mechanocide: Fortress Omega
69% matchNo user reviews
Dev: Parsons Goldman Jones and Co
Windows
On a forgotten world, confront a malevolent machine intelligence. Extract minerals, build factories, power up the railguns, and arm the missile batteries. Defend the Fortress Omega against the alloyed nightmare.
Why similar: Tower Defense 29.9%, Base Building 25%, Wargame 12.4%, RTS 9.7%, Strategy 6.9%
- #48 Our War: The Strongest Shield
68% match7 user reviews86% of 7 reviews2024
Dev: Chengdu Old Man
Windows
A grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.
Why similar: RTS 25.8%, Tower Defense 25.3%, Wargame 18.5%, War 8.7%, Strategy 7.5%
- #49 Electromaze Tower Defense
70% matchMostly Positive71% of 42 reviews2018
Dev: Baronnerie Games
Windows
Electromaze Defense is a classic tower defense game where you create your own maze. With a wide variety of maps, towers and upgrades, Electromaze Defense will keep you hooked for hours on end! Can you build the perfect maze?
Why similar: Tower Defense 29.1%, Base Building 21.6%, Space 12.3%, Futuristic 11.1%, Sci-fi 9%
- #50 Pawar
68% matchNo user reviews
Dev: A.Ready.Gaming
Windows
Rougelike, Rougelike, or Rougelike, please, have some different rougelike. Tower defense, rougelike, fusion, enhancement, upgrade, and quality improvement, providing a different gaming experience. Come and give it a try~
Why similar: Tower Defense 29.6%, RTS 25.2%, Wargame 16.2%, Futuristic 7.9%, Strategy 7.7%
- #51 StrateZ
69% match6 user reviews100% of 6 reviews2020
Dev: Kottabos Games
Windows
StrateZ is a casual post-apocalyptic RTS game where you fight to survive as one of three separate factions be it Survivor, Zombie or Marauder.
Why similar: RTS 37.4%, Base Building 21.6%, Wargame 16.4%, Strategy 15.6%, 3D 3.9%
- #52 Astro Industry Wars
67% matchNo user reviews
Dev: Abundant Pine Games
Windows
Astro Industry Wars is a lighthearted take on the RTS genre featuring distinct unit types, base building, economic production chains, and customizable unit rosters.
Why similar: RTS 35.5%, Base Building 25.7%, Futuristic 15.9%, Sci-fi 10.3%, Strategy 5.6%
- #53 Defense Front
67% matchNo user reviews
Dev: 爱喝可乐的咖啡
Windows
A new charm of traditional tower defense.Hordes of unknown aliens have descended upon Earth. On dynamic scene maps, you need cleverly build defense towers to construct their path of advance, combine with controllable targeting strategies, and stop the aliens' assault.
Why similar: Tower Defense 44.2%, Base Building 24.5%, Strategy 15%, Sci-fi 14.8%, Singleplayer 1.5%
- #54 Space Base Defense
66% match3 user reviews33% of 3 reviews2025
Dev: Morgenmiddag
Windows · Mac
A strategic and action-packed base survival game where you mine crystals, build units, and defend your base against waves of UFOs. Defeat enemies, gather resources, and unlock new planets to expand your defenses. Are you ready to conquer the galaxy?
Why similar: RTS 26%, Tower Defense 25%, Base Building 13.5%, Space 11.5%, Sci-fi 7.7%
- #55 Warzone 2100
67% matchVery Positive90% of 1,603 reviews2020
Dev: Pumpkin StudiosPub: Underdone Gaming
Windows
In the late 21st century, the world's civilizations are wiped out by a series of nuclear strikes, seemingly caused by a massive malfunction of the new NASDA (North American Strategic Defense Agency) strategic defense system.
Why similar: RTS 30.8%, Base Building 23.4%, War 16%, Strategy 14.7%, Futuristic 10.1%
- #56 MarZ: Tactical Base Defense
67% matchMostly Positive78% of 890 reviews2019
Dev: Giant Grey
Windows
Median: 2.6 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 31.5%, RTS 25%, Base Building 14.8%, Strategy 8.5%, Sci-fi 6.6%
- #57 rymdkapsel
68% 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 27.5%, RTS 27%, Base Building 18.6%, Space 12.4%, Strategy 6.7%