Games like Archon-9 : Alien Defense
by Dark Terra Games
An exciting sci-fi real-time strategy game. You are the leader of a band of elite Marines on a rescue mission; it is your job to secure the outpost and rescue lost miners. Aliens are running amok; it won't be easy...
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Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
$14.99IDUN - Frontline Survival
Jan 20 · IDUN Interactive
Both: Wargame · Tower Defense · RTS
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!
3DBuildingWargameTower DefenseStrategyRTSSurvivalBase BuildingMiningSci-fi👍 685
$5.99Frontline Crisis
Aug 14 · BCQT
Both: Tower Defense · RTS · Action RTS
Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis! A battlefield swarming with insects makes strategic and combat decisions crucial. Each decision will determine your fate. Defend humanity's last sanctuary, fight fiercely, and uphold human honor with wits and courage!
Tower DefenseTop-Down ShooterRTSStrategyPixel GraphicsSpaceMechsLocal Co-OpAction RTS1980s👍 348
-30%$8.39From Glory To Goo
Apr 2 · Stratagem Blue
Both: RTS · Tower Defense · Action RTS
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
Base BuildingRTSTower DefenseReal-Time with PauseAction RTSResource ManagementColony SimCity BuilderStrategySandbox👍 1,796
$19.999-Bit Armies: A Bit Too Far
Aug 26 · Petroglyph
Both: Action RTS · RTS · Wargame
Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.
Action RTSRTSWargameReal Time TacticsSandboxColorfulPvPBase BuildingStrategyTactical👍 945
$14.99Mechabellum
Sep 26 · Game River
Both: Wargame · RTS
Command massive armies in this epic mech auto-battler. Draft your troops, customize your units, master your formations, and crush enemies in spectacular 3D battles. All strategy, no clickfest. Outsmart opponents in 1v1, 2v2, free-for-all, or Survival Mode.
StrategyAuto BattlerMechsRobotsWargameTacticalPvPMultiplayerRTSTurn-Based Strategy👍 17,866
-40%$10.49Tower Dominion
May 7 · Parallel 45 Games
Both: Tower Defense · RTS
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!
Tower DefenseStrategyBase BuildingRoguelikeRTSTacticalRogueliteChoices MatterProcedural GenerationResource Management👍 5,124
$19.99Creeper World IXE
Dec 12 · Knuckle Cracker
Both: RTS · Tower Defense · Wargame
The unstoppable alien force known as The Creeper has returned, devouring thousands of worlds in its path, and yours is next. Battle against the Creeper fluid in a groundbreaking pixel-level simulation to prove that humanity will rule the galaxy forever!
RTSTower DefenseWargameReal Time TacticsSandboxSpace1980sWarPhysicsStrategy👍 855
-50%$13.99Age of Darkness: Final Stand
Jan 15 · PlaySide
Both: Tower Defense · Action RTS · RTS
Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world.
Tower DefenseAction RTSRTSStrategyBase BuildingPvEDark Fantasy3DFantasyStylized👍 9,487
$39.99Empire of the Ants
Nov 6 · Tower Five
Both: Wargame · RTS
Conquer enemy nests and lead your colony through the perils of the forest in this groundbreaking RTS. Empire of the Ants is a photorealistic, third-person real-time strategy game where you command your insect legions in epic battles.
WargameReal Time TacticsSandboxPvEPvPRTSGrand StrategyStrategyThird Person3D👍 931
-80%$11.99Warhammer Age of Sigmar: Realms of Ruin
Nov 17 · Frontier Developments
Both: RTS · Action RTS · Wargame
Wage a campaign of brutal conquest in this realm-shattering real-time strategy game set in the Warhammer Age of Sigmar universe. Become a warlord and lead four unique factions to conquer the wild and savage Realm of Ghur in tense and tactical battles.
StrategyActionRTSAction RTSReal Time TacticsFantasyWargame3DCinematicStylized👍 1,867
$39.99Terminator: Dark Fate - Defiance
Feb 21 · Slitherine Ltd.
Both: RTS · Wargame
Terminator: Dark Fate – Defiance is not just a game; it's an adrenaline-fueled journey where your strategic prowess decides the fate of mankind against the machines. After the machines took over, the greatest threats may not come from the machines but rather from other human survivors.
StrategyRTSReal Time TacticsWargame3DAtmosphericArtificial IntelligenceAlternate HistoryDarkConspiracy👍 3,398
$29.99Diplomacy is Not an Option
Oct 4 · Door 407
Both: RTS · Action RTS · Survival
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
Resource ManagementMedievalHistoricalZombiesBase BuildingColony SimRTSDifficultAction RTSSurvival👍 10,910
$1.99Critter Chaos TD
Oct 31 · Chaos Creations
Both: Action RTS · Wargame · Tower Defense
Critter Chaos TD is a fast, frantic and chaotic Tower Defence game in which you must rid the world of the evil Critters. Build stations and guns to fortify your defences and prevent the various types of Critters from reaching your base.
StrategyAction RTSWargameTower DefenseRTSEarly AccessCasualActionIndieBase Building
$9.99Toy Shire
Aug 26 · Bluespy Studios
Both: Tower Defense · RTS · Military
Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers!
Early AccessTower DefenseStrategyRTSCuteWholesomeFamily FriendlyReal Time TacticsActionMilitary👍 702
$19.99Ratten Reich
Jul 15 · METALLADLERSTUDIO
Both: RTS · Wargame
Ratten Reich is an RTS focusing on realistic combat in a unique, steampunk/dieselpunk world ripped apart by an ongoing war between rats, mice, cockroaches, and lizards.
StrategyRTSWargameReal Time TacticsSpectacle fighter3DTop-DownThird PersonAlternate HistoryAtmospheric👍 616
$59.99Homeworld 3
May 13 · Blackbird Interactive
Both: RTS · Sci-fi
Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.
SpaceRTSStrategySci-fiStory RichSingleplayerMultiplayerTacticalCo-opRoguelike👍 5,438
$24.99Executive Assault 2
Oct 18 · Hesketh Studios Ltd
Both: RTS
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
RTSBuildingSpace SimStrategyBase BuildingSpaceReal-TimeFPSActionSingleplayer👍 1,604
$7.99Deep Dark Forest
Apr 15 · pixiangames
Both: RTS · Wargame · Military
You will have to lead the civilization, develop the economy, enhance the technology, stabilize the people and colonize new galaxies; when encountering unknown civilizations, will you hide yourself or communicate with them in a friendly way? In this "dark forest", every decision will be crucial.
SimulationStrategyRTSGrand StrategySpace SimReal Time TacticsWargameExplorationIsometricMilitary
FreeStormgate
Aug 5 · Frost Giant Studios
Both: RTS
Stormgate is a free-to-play real-time strategy game with a full single-player campaign, 3-player co-op, and PvP versus modes on over 60 maps. Our Editor is also freely available for you to craft just about any custom game mode you can imagine. Join our development journey today!
RTSBase BuildingStrategyMultiplayerWareSportsFree to PlayFuturisticTop-DownBuilding👍 2,104
$10.99Invasion: Phoenix
May 17 · Millzen Studios
Both: Action RTS · Wargame · RTS
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... or crush it!
Early AccessAction RTSWargamePvEStrategyRTSArcade2DTop-DownAction
-20%$15.99SENTRY
Mar 25 · Fireblade Software
Both: Tower Defense · Sci-fi · Survival
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
Tower DefenseStrategyFPSSci-fiSurvivalActionColorfulStylized3DFirst-Person👍 847
$19.99The Front
Oct 30 · Samar Studio
Both: Survival · Tower Defense
The Front is a survival open-world crafting sandbox game. You are a resistance fighter sent back in time to stop the rise of a tyrannical empire. Collect resources, craft tech, build shelters, and fight monsters to accomplish your mission.
Open World Survival CraftMultiplayerSurvivalCraftingBase BuildingBuildingOpen WorldTower DefenseSandboxShooter👍 9,553
$59.99Warhammer 40,000: Space Marine 2
Sep 9 · Saber Interactive
Both: Sci-fi
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.
Co-opActionMultiplayerThird-Person ShooterPvEAdventureThird PersonAction-AdventureSci-fiSingleplayer👍 168,817
$14.99Eyes of War
Jan 31 · Good Mood Games
Both: RTS · Wargame
Eyes of War is a real-time strategy game set in the medieval era, offering both single-player and multiplayer experiences where you can control every unit in character mode. Build your castle, lead your army, and dominate the map. Eyes of War invites you to epic battles of the medieval era!
StrategyOnline Co-OpRTSWargameStylizedIsometricProcedural GenerationThird PersonResource ManagementBase Building👍 268
$19.99Axon TD: Uprising - Tower Defense
Sep 27 · Element Studios
Both: Tower Defense · RTS · Sci-fi
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.
Tower DefenseReal Time TacticsRogueliteStrategyPvERTSRoguelikeOnline Co-OpSci-fiTactical👍 707
$14.99Battle Realms: Zen Edition
Jan 27 · Ed Del Castillo
Both: RTS
Return of the Classic, now remastered! Battle Realms is a fantasy RTS inspired by the stories told in martial- arts movies and oriental mythology. Develop your peasants into a highly trained and deadly efficient clan of warriors who are ready to die with your name on their lips.
StrategyActionRTSClassicMultiplayerFantasyEarly AccessFast-PacedSingleplayerBase Building👍 4,198
-90%$1.19Hexguardian
May 2 · Split Second Games
Both: Tower Defense · RTS
Hexguardian is a roguelite, tower defense game where you build your own maps with hexagonal tiles! Build and upgrade towers, recruit armies, learn spells, construct wonders and place hexagonal tiles to create a path to enhance your defenses. With plenty of game modes and talents to unlock!
Tower DefenseCartoonyRogueliteRoguelikeStrategyHex GridProcedural GenerationTacticalRTS3D👍 617
-60%$15.99ZEPHON
Nov 8 · Proxy Studios
Both: Sci-fi
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
StrategyTurn-Based4XTacticalMultiplayerLovecraftianSandboxCo-opSci-fiProcedural Generation👍 1,841
Also worth a look
Share some of the same DNA, but further from the original.
$49.99Sins of a Solar Empire II
Aug 15 · Ironclad Games Corporation, Stardock Entertainment
Both: RTS · Sci-fi
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
SpaceStrategyRTS4XSingleplayerSci-fiMultiplayerTacticalCo-opPvE👍 7,158
$29.99Starship Troopers: Extermination
Oct 10 · Offworld
Both: Sci-fi · Aliens
Starship Troopers: Extermination is an up to 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Online Co-OpActionFPSSci-fiFirst-PersonCo-opMultiplayerCombatAliensPvE👍 29,725
$17.99Dying Breed
Oct 7 · Sarnayer
Both: RTS · Sci-fi
Golden-age RTS classic. Fast-paced action & strategic decision-making, battling evil arch-enemies, zombies, and retro-futuristic technologies. All to a '90s electro-metal soundtrack and FMV live-action cut scenes.
Early AccessStrategySingleplayerRTSBase BuildingTacticalActionWarPost-apocalypticSci-fi👍 218
$24.99Outpost: Infinity Siege
Mar 26 · Team Ranger
Both: Tower Defense · Sci-fi
Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.
Robots3DTower DefenseBase BuildingFPSResource ManagementCo-opSingleplayerPost-apocalypticSci-fi👍 11,637
FreeImperius
Jun 13 · Incognito Interactive
Both: RTS · Sci-fi
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.
StrategyRTSSpaceSingleplayerSci-fiFuturisticReal Time TacticsWarLore-RichBase Building
$9.99Cluckmech Oasis
May 9 · BlackLight
Both: Tower Defense
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.
StrategyRoguelikeTower DefensePixel GraphicsTop-Down ShooterCuteRogueliteBuildingActionShooter👍 3,078
$39.99Xenonauts 2
Apr 2 · Goldhawk Interactive
Both: Sci-fi
Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe.
StrategyRPGTurn-Based TacticsTurn-Based StrategySci-fiTurn-Based CombatTacticalTurn-BasedPvECharacter Customization👍 4,857
-30%$20.99Desynced
Mar 5 · Stage Games Inc.
Both: RTS · Sci-fi
Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.
StrategyAutomationProgrammingBase BuildingSandboxCity BuilderRTSSci-fiMultiplayerSimulation👍 1,880
$19.99Surviving the Abyss
Nov 5 · Rocket Flair Studios
Both: Survival
Earth, 1976. You have been tasked with managing a deep-sea science facility working to perfect cloning. Explore the darkness and keep your crew alive in this hardcore survival colony builder. And beware. The darkness hides untold horrors.
City BuilderColony SimExplorationUnderwaterBuildingManagementBase BuildingSurvivalDifficultEconomy👍 1,045
$24.99Door Kickers 2: Task Force North
Feb 10 · KillHouse Games
Both: Military
Command military Special Ops Teams in gripping tactical combat against a Middle East-based terrorist network. Sequel to RockPaperShotgun's "Best Tactics Game of 2014".
TacticalTop-DownReal Time TacticsMilitaryReal-Time with PauseActionStrategyModdableCo-opIndie👍 12,331
$19.99Repterra
Aug 20 · Chute Apps
Both: Tower Defense · RTS
Repterra is a base-building survival RTS set in a world overrun by dinosaurs. Manage your colony while battling massive dino hordes. Breed and ride your own dinos, unlock permanent upgrades, and fight to reclaim the world for humanity.
Real-Time with PauseBase BuildingDinosaursTower DefenseRTSCity BuilderStrategyPvEResource ManagementIsometric👍 122
$19.99Dread Dawn
Sep 30 · Kioop
Both: Survival · Tower Defense
This is an open-world zombie survival game set in a quarantined city. You play as a student left behind due to missing the evacuation convoy. Together with classmates and other survivors, you must defend the school, survive, and await rescue.
ZombiesSurvivalExplorationSandboxOpen WorldBase BuildingTower DefenseAdventureRPGAtmospheric👍 2,113
$34.99Abiotic Factor
Jul 22 · Deep Field Games
Both: Survival · Sci-fi
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
SurvivalOnline Co-OpOpen World Survival CraftCraftingBase BuildingSci-fiExplorationCo-op CampaignMultiplayerFirst-Person👍 42,120
$19.99Grit and Valor - 1949
Mar 26 · Milky Tea Studios
Both: RTS
A dieselpunk real-time tactics roguelite set in an alt-history World War 2. Grit and Valor – 1949 puts you in command of an elite Mech Squadron. Think fast and battle the Evil Axis forces to liberate Europe. Upgrade your Mechs and Pilots and develop new strategies to neutralise the enemy HQ!
ControllerMechsReal Time TacticsRogueliteStrategyRTSWarAlternate HistoryRoguelikeWorld War II👍 274
-50%$19.99Terra Invicta
Jan 5 · Pavonis Interactive
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
StrategyGrand StrategySimulation4XEconomyWarHistoricalTurn-Based StrategyTacticalManagement👍 9,064
$23.99The Planet Crafter
Apr 10 · Miju Games
Both: Survival
A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.
Base BuildingOpen World Survival CraftSurvivalOnline Co-OpCo-opBuildingCraftingSpaceOpen WorldExploration👍 68,913
-50%$9.49Badlands Crew - Drive, Command, Conquer
Apr 28 · Runner Duck
Both: Wargame
Create, customize and command your battle wagon to conquer crazed enemy factions and save innocent survivors scattered throughout the lawless Badlands in the aftermath of a devastating apocalypse. Do you have what it takes to Build, Evolve and Fight to survive?
Vehicular CombatStrategyBuildingPost-apocalypticIndieActionWargameOpen WorldSimulationShoot 'Em Up👍 1,128
$4.99Star Survivor
Sep 20 · SpaceOwl Games, Erabit
Both: Survival
Star Survivor is a space-themed survival game that blends intense deckbuilding strategy. Pilot humanity's last spaceship through the vast galaxy, Unlock powerful weapon combos, collect card modules, and craft unique builds. As the enemy swarms grow denser, will you be the last one standing?
CasualSurvivalAction RoguelikePhysicsBullet HellSingleplayerSpaceArena ShooterRogueliteDeckbuilding👍 540
$1.99TRAPPED
Jun 16 · Cheap Fun Games, Forthright Indie Team
Both: Survival
Something has gone terribly wrong in TRAPPED Alaska. Except for you, and a handful of survivors, the whole town has been emptied. Everywhere, what should be water has been replaced by a black semi-sentient sludge that seems to change everything it touches. And it’s rising...
ActionAdventureIndieStrategyOpen WorldSurvivalViolentMultiplayerEarly AccessCo-op👍 248
$6.99Insect Swarm
Sep 11 · Parallel Portal
The insect swarm is a swarm consists of millions of alien insects, and you, as the only survival on this barren planet, will have to fight against them dauntlessly. Good luck!
ShooterTop-DownShoot 'Em UpTop-Down ShooterTwin Stick ShooterMechsHack and SlashRPGBeat 'em upExploration👍 2,491
$7.99Swarm Grinder
Apr 22 · Last Bite Games
An action roguelite game with alien swarms and mechs. Battle enemies to make your way through a mass of spreading and evolving cells hosting dormant enemies. Collect a variety of game-changing skills and upgrades to create unique builds.
RoguelikeRogueliteAction RoguelikeBullet HellMechsProcedural Generation2DPixel GraphicsControllerAction RPG👍 1,164




