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Games Like Space Alliance: Frontier

60+ similar titles based on shared tags and player behavior. Themes include Strategy, RTS, Real Time Tactics, Action RTS.

Similar Games

View all 57 recommendations
  1. #1 World Order
    97% 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 18.6%, Wargame 16.1%, Real Time Tactics 15.8%, Space 8.3%, Military 6.8%

  2. #2 Grey Galactic
    96% match4 user reviews50% of 4 reviews2025
    Dev: Alex McGeePub: Blue Quill Studios LLC
    Windows

    Grey Galactic is a real time strategy game in space where you build up your planets and ships to conquer your enemies. Develop your empire and fleet of spaceships to destroy your enemies and take over the galaxy! Do you have what it takes to become the best Fleet Captain the UFMC has ever seen?

    Why similar: Action RTS 24.7%, RTS 17.8%, Real Time Tactics 16.3%, Space 7.9%, Futuristic 6.1%

  3. #3 Leave No One Behind: Ia Drang
    96% matchMixed41% of 311 reviews2022
    Dev: Gaming 301
    Windows

    Leave No One Behind is tactical real time strategy war game. Experience some of the hardest battles fought during the Vietnam War in 1965 between US Army and the Army of the Northern Vietnam for landing zones X-Ray and Albany and for Plei Me special forces camp.

    Why similar: Action RTS 24.4%, RTS 17.6%, Real Time Tactics 15.4%, Wargame 14.6%, Strategy 5.7%

  4. #4 Military Defense
    95% matchNo user reviews2025
    Dev: Taranau Aliaksei
    Windows

    Protect the base from an alien invasion. Place cannons and destroy the invaders. Upgrade cannons to resist the enemies.

    Why similar: Action RTS 20.8%, RTS 16.9%, Real Time Tactics 14.8%, Wargame 14.6%, Aliens 8.5%

  5. #5 Bull3000VRTS
    94% match3 user reviews100% of 3 reviews2022
    Dev: Robin KrausePub: Rob Gaming
    Windows

    VR RTS meets shooter: command armies and fight with your own aim on the Andromeda front. Capture building slots, manage 3 resources, and win fair 1v1 and 2v2 battles.

    Why similar: Action RTS 20.6%, RTS 17.1%, Real Time Tactics 14.6%, Wargame 9.2%, Aliens 6.8%

  6. #6 Extinction Eclipse
    94% matchPositive85% of 34 reviews2022
    Dev: TuanisApps
    Windows · Mac · Linux

    You are in command of the human fleet, searching for asteroids to mine, extract resources and build bases and more ships to defeat aliens invaders. This simple and short action RTS has a full and exciting campaign, and a skirmish mode that allows you to play a different mission on every match.

    Why similar: Action RTS 26.8%, RTS 14.7%, Space 12.6%, Real Time Tactics 9.6%, Wargame 8.1%

  7. #7 Xeno Command
    93% matchVery Positive82% of 57 reviews2022
    Dev: ChillyRoomPub: ChillyRoom
    Windows

    Defend galaxy against Alien invasion in the RTS offline game with roguelike fun

    Why similar: Action RTS 24.2%, Real Time Tactics 14.9%, Wargame 14.3%, RTS 13.9%, Aliens 8.3%

  8. #8 Bataliron
    92% matchNo user reviews
    Dev: Ruben Minasyan
    Windows

    Bataliron is a modern warfare RTS game that focuses on personnel development, online command, fire support, and unit assistance on the battlefield, leveraging modern technologies.

    Why similar: Action RTS 26.1%, RTS 19.8%, Real Time Tactics 16.4%, Wargame 14%, Strategy 9%

  9. #9 Evostrike
    91% matchPositive96% of 25 reviews2024
    Dev: MoonArtyre
    Windows

    A Roguelike tactics game where you fight hordes of aliens. Your Units evolve and learn new skills as the fight goes on. Manage your squad of 5 specialised mercenaries, and fight a never ending war against the infestation.

    Why similar: Action RTS 25.8%, Real Time Tactics 20.1%, RTS 15.9%, Aliens 7.9%, Management 6.8%

  10. #10 Orbital Strike
    91% matchNo user reviews2027
    Dev: James Rollins
    Windows

    A real-time strategy game of orbital warfare. Build satellites, launch them into chosen orbits, and fight for control of the sky. Your assets stay invisible until an enemy sensor finds them. Every strike depends on being overhead at the right moment.

    Why similar: Real Time Tactics 19.3%, RTS 18%, Wargame 15.1%, Action RTS 15%, Space 6.9%

  11. #11 Prince Rystiya's Starfleet
    89% match9 user reviews100% of 9 reviews2024
    Dev: Rystiya
    Windows

    Conquer the entire galaxy or fight quick custom battles in this free space RTS!

    Why similar: Action RTS 26.2%, RTS 19.8%, Real Time Tactics 16.5%, Wargame 14.3%, Strategy 8.8%

  12. #12 Knights vs Aliens
    89% match7 user reviews100% of 7 reviews2026
    Dev: Prophetic Sky, IncPub: Eastbridge Game LLC
    Windows · Mac · Linux

    Command knights, aliens, and other historically dubious nations in a free real-time tower conquest game rebuilt from a 2009 iPad original. Grow armies, capture towers, and outmaneuver adaptive AI through 30 campaign levels.

    Why similar: Action RTS 32.1%, Real Time Tactics 19.5%, RTS 14.5%, Aliens 9.7%, Top-Down 6.1%

  13. #13 Para Bellum - Hold the Line
    90% matchPositive92% of 13 reviews2021
    Dev: Laukaus Games
    Windows · Mac · Linux

    Para Bellum - Hold the Line is a 3D real time small unit tactics game. Your task is to hold off enemy attacks wave after wave using a variety of different Units and Supports in your arsenal to the best of your abilities in Campaign and Skirmish modes.

    Why similar: Action RTS 24.7%, RTS 18.1%, Real Time Tactics 16.3%, Wargame 14.1%, Military 5.9%

  14. #14 WarOS
    88% matchPositive81% of 46 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 16.4%, Real Time Tactics 15.2%, Action RTS 14.5%, Wargame 13.9%, Space 10.1%

  15. #15 2089 - Space Divided
    87% 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: Action RTS 21.1%, RTS 14.1%, Real Time Tactics 14%, Wargame 13.1%, Military 6.5%

  16. #16 Battle For Cosmos
    86% match6 user reviews100% of 6 reviews2023
    Dev: Oscar Makes Games
    Windows

    Battle For Cosmos is a fast-paced, action-packed RTS set in space. With a focus on the battle it is perfect for those who want a thrilling and engaging strategy game without the unnecessary filler. Take control of your empire, build your defenses, and conquer the cosmos!

    Why similar: Action RTS 36.7%, RTS 22.8%, Space 12.6%, Wargame 9.5%, Strategy 7.3%

  17. #17 RTS Outpost
    86% matchNo user reviews
    Dev: Murat Yucel
    Windows · Mac · Linux

    Build your base, command your army, and wage real-time PvP war on a living conquest map. Clear a frontier of monsters and alien UFOs, join a faction, team up with friends, and climb the seasonal ranks. A classic base-building RTS with modern military firepower, ad-free on desktop.

    Why similar: Action RTS 25.5%, RTS 21.5%, Real Time Tactics 15.1%, Wargame 15%, Strategy 7.7%

  18. #18 Last Front
    85% matchNo user reviews2026
    Dev: Murzin Studio
    Windows

    Modern armies, unique commanders, tactical battles. In Last Front, each faction offers its own style of war and exclusive units. Build your base, lead your army, and prove your superiority on the battlefield.

    Why similar: Action RTS 23.3%, RTS 18.8%, Real Time Tactics 16.5%, Wargame 16.2%, Military 7.4%

  19. #19 ChargeDrop
    84% matchNo user reviews
    Dev: GliderDrones
    Windows

    A physics-driven tower defense game where one massive cube does everything: fight, build, activate, and survive. Drop into a neon sci-fi battlefield, hold back waves of Chaos Dice, and power up your defenses through energy, momentum, and precision.

    Why similar: Action RTS 26.8%, RTS 21.9%, Real Time Tactics 16.8%, Strategy 9.9%, Space 8.1%

  20. #20 Fungal Front
    84% matchNo user reviews
    Dev: Mkay Productions
    Windows

    A fast-paced action RTS set on Mycopia, a living fungal planet that fights back. Harvest serum, build your base, and command armies of humans or Shroomies across single-player missions, co-op, and online PvP.

    Why similar: Action RTS 22.3%, Real Time Tactics 14.5%, RTS 14.3%, Wargame 13.7%, Space 7%

  21. #21 Prime Domination
    83% matchNo user reviews
    Dev: A16
    Windows

    Prime Domination is a real-time strategy game where you build your base, manage finance, produce powerful military units, and battle against AI or other players in large-scale multiplayer matches with up to 10 commanders.

    Why similar: Action RTS 26.2%, RTS 21.7%, Real Time Tactics 16.7%, Wargame 10.2%, Strategy 7.6%

  22. #22 Strength In Numbers
    81% matchPositive95% of 22 reviews2025
    Dev: Ciaosen Games
    Windows

    Take back control of the galaxy and defeat the evil AI in this fast-paced, node-based strategy game. The humanoid races need all the help they can get. We're counting on you, Commander!

    Why similar: RTS 24.5%, Real Time Tactics 22.2%, Space 10.9%, Aliens 10.3%, Strategy 8.3%

  23. #23 Space Mantlet
    82% matchNo user reviews2025
    Dev: game_gland
    Windows · Linux

    Bite size colossal battle! Build an army in minutes as infantry upgrade with orbital drops into war machines! Then combine those machines to form the giant Mantlet mech! All while bullet hell rages! In a transhuman future, command Mantlet One to secure New Terra!

    Why similar: RTS 16.8%, Real Time Tactics 15.8%, Wargame 14.4%, Aliens 13.2%, Military 7.5%

  24. #24 Reapers Inc.
    81% matchNo user reviews
    Dev: Underdog Entertainment
    Windows · Mac

    Reapers Inc., is a fast-paced RTS where you lead an elite squad to defend your base against relentless intergalactic threats. Navigate diverse planetary biomes, strategically manage your squad, and use quick decision-making skills to exterminate your foes. Stand your ground, and reap the rewards.

    Why similar: Action RTS 29.5%, Real Time Tactics 19.1%, RTS 17.9%, Strategy 5.5%, Aliens 5.3%

  25. #25 Grimstar: Crystals are the New Oil!
    80% matchMostly Positive75% of 16 reviews2025
    Dev: SvenRahn GamesPub: indie.io
    Windows

    Grimstar is a real-time strategy game with a story-based single-player campaign. Your brother's sudden death has hit you hard, but the laws of the corporation for which he laid down his life dictate that you must take his place until his contract is fulfilled...

    Why similar: Action RTS 20%, RTS 15.6%, Wargame 12.7%, Aliens 11.4%, Space 9%

  26. #26 Keep
    79% matchNo user reviews
    Dev: Parall Peak LTD
    Windows

    Keep is a WW2-themed strategy shooter where you place flak turrets to defend your fortress, then jump into first-person mode to shoot down enemy planes. Switch between tactical planning and direct combat in a fast-paced blend of strategy and action

    Why similar: Action RTS 33.8%, Real Time Tactics 20.9%, RTS 20.5%, Strategy 5.7%, Base Building 5.4%

  27. #27 Space gold rush TD
    79% matchNo user reviews2028
    Dev: Bottled Pixel
    Windows

    Join in on the next gold rush and become a prospector in space. In this unique tower defense you can set up and reposition towers for maximum efficiency and adapt to the environment.

    Why similar: Action RTS 23.9%, RTS 18.7%, Real Time Tactics 15%, Space 13.2%, Sci-fi 6.6%

  28. #28 Hive Striker: Dissonance
    78% matchNo user reviews
    Dev: Ocelot Forge
    Windows

    A post-apocalyptic real-time strategy game. Deploy your mobile base, gather resources, build defenses, and train armies to fight back against The Dissonance — an alien hive consuming the wasteland. Play solo or team up with up to 8 players online.

    Why similar: Action RTS 25.6%, Real Time Tactics 15.9%, Wargame 15.3%, RTS 14.6%, Strategy 5%

  29. #29 Celestial Conquest
    78% matchNo user reviews2028
    Dev: Piebox
    Windows · Mac · Linux

    Blast off in this retro-style space shooter! Conquer planets, outwit AI enemies, and survive the dangers of deep space in fast-paced, nostalgic pixel action.

    Why similar: Action RTS 27.5%, RTS 24.8%, Real Time Tactics 20.4%, Strategy 11.5%, Space 8.6%

  30. #30 Hell Of War: Combined Arms
    77% matchNo user reviews2026
    Dev: Ravens Row
    Windows

    Hell Of War is a Real-Time Command Action (RTCA) game where you command the operation from a command drone, coordinate infantry, armored vehicles, combat drones, and artillery, then seamlessly take direct control of units to personally intervene in the battle.

    Why similar: Action RTS 21.6%, Wargame 18.1%, RTS 17.6%, Real Time Tactics 17.5%, Military 7.5%

  31. #31 Cosmic Stronghold
    76% matchNo user reviews
    Dev: Nikolaj Piet PaghPub: PetskullGames
    Windows

    Cosmic Stronghold is a mix of the genres RTS and Tower Defense. Your primary goal is to keep your space station alive for as long as possible, so that it can harvest the nearby mines for precious mineral ores. You will be faced with waves of enemies, getting stronger and stronger for each wave.

    Why similar: Action RTS 26%, RTS 19.4%, Real Time Tactics 17.1%, Aliens 12.3%, Economy 6.6%

  32. #32 Fleetfall - Galaxy Domination
    75% match2 user reviews100% of 2 reviews2026
    Dev: Purple Owl
    Windows

    Fast real-time space conquest for 1-4 players. Capture planets, launch missile salvos, and outmaneuver friends in 10-minute Deathmatch blitzes — or scheme through 30 minutes of diplomacy, trade and betrayal in Hegemony mode. Cross-play with mobile; bots fill empty seats so a match always starts.

    Why similar: RTS 25.3%, Action RTS 21.8%, Real Time Tactics 13.9%, Space 13.7%, Wargame 12.1%

  33. #33 SYNCHRONIZERS: UNDEAD MARINES
    76% matchNo user reviews
    Dev: AN Games
    Windows

    "SYNCHRONIZERS: UNDEAD MARINES" blends high-quality Three-Lane Tower Defense with Reverse Tower Defense gameplay. Command your units in a thrilling narrative reminiscent of a StarCraft and Plants Vs. Zombies fusion! Your choices will forge the path to victory—or defeat.

    Why similar: Action RTS 24.8%, Real Time Tactics 16.2%, RTS 14.7%, Aliens 11.7%, Space 9.7%

  34. #34 Swarm Queen
    77% matchVery Positive93% of 410 reviews2017
    Dev: Helmi Bastami (Flyborg.net)
    Windows
    Median: 4.0 hrsMean: 5.0 hrs≥1hr: 87%

    A quick-to-learn but challenging real-time strategy game where you spawn an army of space-bugs that control themselves.

    Why similar: RTS 18.9%, Action RTS 18.2%, Aliens 15.4%, Real Time Tactics 14.4%, Space 8.6%

  35. #35 Expedition: Shadow World
    74% matchPositive100% of 12 reviews2025
    Dev: Pavel Tanonov
    Windows

    Expedition: Shadow World is a tactical game about an expedition sent to a distant planet to extract energy resources. Command a group of five troopers in real-time battles with a tactical pause and discover the mystery of the planet.

    Why similar: RTS 19.7%, Real Time Tactics 18.7%, Aliens 13.1%, Space 10.2%, Futuristic 7.1%

  36. #36 Alignment Zero
    74% matchNo user reviews
    Dev: Bytecat Games
    Windows

    'Alignment Zero' is a Real-Time Tactics game with Pause. As the commander of a Private Military Company (PMC) strike force, control your troops and complete missions. Build your squad, select equipment, and develop a tactical plan for battle.

    Why similar: Action RTS 24.6%, Real Time Tactics 17.8%, RTS 15.5%, Wargame 13%, Military 7.1%

  37. #37 Ants Megapolis
    73% matchNo user reviews2026
    Dev: Bugged Games
    Windows

    Command a colony on the brink in Ants Megapolis. Survive an unforgiving world by forging your unique Pheromone, a weapon that dictates your evolution. Carve out an empire from the dirt as an interactive narrator chronicles your savage, epic story of survival.

    Why similar: Action RTS 29%, RTS 23.8%, Real Time Tactics 18.1%, Strategy 10.8%, Realistic 5.6%

  38. #38 Incarnus Warfare
    73% matchNo user reviews
    Dev: Ludvik Koutny
    Windows

    Incarnus Warfare is a classic real-time strategy featuring moderate-scale unit combat and base building. The game focuses heavily on immersion in every aspect. Forget the real world around you, and once again, become a commander of a military task force, just like in your childhood.

    Why similar: Action RTS 24.5%, RTS 17.9%, Real Time Tactics 16.1%, Military 7.6%, Futuristic 6.1%

  39. #39 Stellar Warfare
    73% matchVery Positive83% of 429 reviews2021
    Dev: Tense Games
    Windows
    Median: 42 minMean: 2.8 hrs≥1hr: 45%

    Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!

    Why similar: RTS 17.8%, Real Time Tactics 15.5%, Aliens 14.2%, Space 12.2%, Wargame 12.1%

  40. #40 Endeavor: Rite of Passage
    71% matchPositive86% of 35 reviews2025
    Dev: Endeavor
    Windows

    Take command of powerful armies with intuitive player controls and classic RTS features and feel. Control powerful super-weapons and elite units through 39 campaign missions. Continue the fight on 20 skirmish and 8 unique survival maps.

    Why similar: Action RTS 26.5%, RTS 19.2%, Economy 8.4%, Military 7.5%, Futuristic 6.8%

  41. #41 SALVO
    71% matchNo user reviews
    Dev: Rice Golem Productions
    Windows

    Experience cinematic space warfare in SALVO, an action packed real-time tactical combat simulator. Command your flagship and engage in intense battles in a war-torn solar system. Play a story-driven campaign, or forge your own destiny across the dangerous frontiers.

    Why similar: Action RTS 29.6%, Real Time Tactics 18.9%, RTS 12.8%, Space 11.9%, Military 9.4%

  42. #42 NexoHominis : Black Sun
    71% matchNo user reviews
    Dev: Exodus Games Inc.
    Windows

    NexoHominis: Black Sun is a satirical SciFi RTS that revives the magic of genre classics while innovating on its core. You’ll wage a brutal resource war across a variety of game modes using a host of fresh mechanics that give you unparalleled control over your army’s tactics and play-style.

    Why similar: Action RTS 24.1%, RTS 17.4%, Real Time Tactics 15.9%, Wargame 14.5%, Futuristic 5.7%

  43. #43 Ant Guardians
    69% matchPositive88% of 25 reviews2025
    Dev: NotThisTime
    Windows

    It’s a defense game where you create your own strategy, grow your units, and defend against enemies.

    Why similar: Action RTS 25.9%, RTS 19.8%, Real Time Tactics 17%, Wargame 14.2%, Aliens 10.1%

  44. #44 Invasion: Phoenix
    72% matchNo user reviews2024
    Dev: Millzen Studios
    Windows

    Invasion: Phoenix is a passion project by a solo developer and lifelong gamer. An alien empire hellbent on conquering Earth has arrived at our doorstep, and humanity is in total anarchy. Delve into this meticulously crafted 2D top-down pixel art RTS and sign up to reclaim Earth!

    Why similar: Action RTS 29.6%, RTS 19.6%, Wargame 18.2%, Space 8.2%, Aliens 6.3%

  45. #45 Voxel Vanguard
    70% matchNo user reviews
    Dev: NakshiSoft
    Windows

    Voxel Vanguard is a dynamic strategy game set in a vibrant voxel world where players must strategically expand their territory by placing interconnected towers. Navigate through voxel worlds, strategically deploy towers, and connect them with tethers to fend off threats and conquer new territories.

    Why similar: Action RTS 24.5%, RTS 17.8%, Real Time Tactics 17.5%, Wargame 16.5%, Economy 6.4%

  46. #46 Tower Defense Ultimate: Crashfall Protocol
    69% match3 user reviews100% of 3 reviews2026
    Dev: Thonus Digital
    Windows

    Defend your base against relentless alien waves in a sci-fi tower defense strategy game. Build deadly kill zones, unlock new towers and special abilities, and adapt your loadout to survive escalating assaults across a hostile campaign.

    Why similar: Action RTS 29.7%, Real Time Tactics 19.2%, RTS 18.1%, Aliens 11.3%, Strategy 6.3%

  47. #47 Warhammer 40,000: Dawn of War IV
    70% matchNo user reviews2026
    Dev: KING ArtPub: Deep Silver
    Windows

    Return to the RTS series’ roots with deeply satisfying strategy gameplay. Take command of four unique Warhammer 40,000 factions, including the Adeptus Mechanicus in their series debut! Fight through 70+ epic campaign missions, as well as the replayable Last Stand, Skirmish and multiplayer modes.

    Why similar: Action RTS 24.2%, RTS 18%, Real Time Tactics 15.9%, Aliens 13.2%, Realistic 5.8%

  48. #48 Broken Arrow
    67% matchMixed54% of 34,846 reviews2025
    Dev: Steel BalalaikaPub: Slitherine Ltd.
    Windows
    Median: 36.8 hrsMean: 92.2 hrs≥1hr: 95%

    Broken Arrow is a large-scale real-time modern warfare tactics game that combines the complexity of joint-forces wargaming with action-packed real-time tactics gameplay.

    Why similar: Action RTS 22.7%, Wargame 19.7%, RTS 18.5%, Real Time Tactics 16.5%, Strategy 7.1%

  49. #49 Imperius
    69% matchMostly Positive75% of 24 reviews2024
    Dev: Incognito Interactive
    Windows

    Imperius is an easy-to-learn, hard-to-master space RTS. Command devastating ships of the Imperius Navy and prove your loyalty by destroying everything in your path, no matter the cost.

    Why similar: RTS 17.4%, Real Time Tactics 15.6%, Space 11.9%, Aliens 11%, Military 7.8%

  50. #50 Squad 22: ZOV
    67% matchMixed60% of 655 reviews2025
    Dev: SPN StudioPub: Zarobana Entertainment
    Windows

    Single player tactical action real-time game with active pause to plan orders carefully. Based on real war-time experience of living Russian veterans of war in Ukraine. It's all about modern conflict small infantry groups with some armored vehicle and drone support as well as real events story

    Why similar: Action RTS 27.7%, RTS 19.9%, Real Time Tactics 17.9%, Wargame 15.1%, Strategy 6.5%

  51. #51 Orion Wars
    67% match8 user reviews88% of 8 reviews2025
    Dev: Sneeden Software
    Windows

    Fast-paced space RTS with 10-25 minute matches. Command fleets, conquer systems, or research the Singularity. Simple controls, strategic depth, but no 3-hour commitments required.

    Why similar: Action RTS 24.4%, RTS 23.4%, Space 14.6%, Real Time Tactics 14.5%, Sci-fi 6.4%

  52. #52 Viridian Corp.
    68% matchNo user reviews
    Dev: Fork on the Table Studios
    Windows

    Command from above. Fight from within. Viridian Corp. is a single-player sci-fi Action RTS and third-person shooter. Lead the Free Cluster, capture mining zones, direct your forces, then Mindwalk into a soldier and enter the battle yourself.

    Why similar: Action RTS 28.7%, RTS 19.1%, Real Time Tactics 14.8%, Space 7.7%, Sci-fi 7.4%

  53. #53 Expansion VR
    68% matchMostly Positive77% of 22 reviews2024
    Dev: Plazma Studio
    Windows

    Expansion is a sci-fi Action RTS where deck-building strategy meets fast-paced VR duels — battle AI or challenge real players.

    Why similar: RTS 23.3%, Real Time Tactics 21.3%, Space 11.7%, Strategy 8.2%, Aliens 7.7%

  54. #54 Negative Energy
    68% match3 user reviews67% of 3 reviews2025
    Dev: ByVal Games
    Windows · Linux

    Negative Energy is a tower defense game with basic RTS mechanics, where your goal is to defend the construction of a Dyson sphere, while fighting against waves of hundreds of enemies ships.

    Why similar: Action RTS 22.8%, RTS 22.4%, Real Time Tactics 19.9%, Strategy 10.7%, Space 8.3%

  55. #55 Line Of Defense Tactics - Tactical Advantage
    72% matchNegative10% of 20 reviews2014
    Dev: 3000AD
    Windows

    A real-time strategy combat game based on the world of the Line Of Defense. Command a team of four Galactic Command marines in highly classified missions in space and on planets.

    Why similar: Action RTS 22%, Real Time Tactics 16.8%, RTS 16%, Space 11.8%, Sci-fi 8%

  56. #56 WarBreeds
    67% matchPositive84% of 25 reviews2023
    Dev: Red Orb EntertainmentPub: SNEG
    Windows

    Warbreeds is a strategy game where the objective is to become the ruler of the fallen Empire. Defeat your enemies and steal their genetic material to expand your clan’s skills and firepower. Engineer and customize your army with a vast mixture of advanced bio-technological weaponry.

    Why similar: Action RTS 27.2%, Real Time Tactics 16.8%, Wargame 16.5%, RTS 16%, Sci-fi 7.4%

  57. #57 Warlapse
    66% matchNo user reviews2026
    Dev: Bad Engine Studio
    Windows · Linux

    War isn't heroism — it's ruthless order and maneuver. Across 7 ages from the Stone Age to modern times, encircle the enemy, cut their supply, and break morale to melt them in the killbox. Lead veterans through Campaign, dive into fast Skirmishes, or mod tomorrow's wars with your own units!

    Why similar: Action RTS 26.9%, RTS 20.2%, Real Time Tactics 17.2%, Wargame 14.9%, Strategy 8.6%

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Games Like Space Alliance: Frontier

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