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Games Like Alien Shooter TD

60+ similar titles based on shared tags and player behavior. Themes include Singleplayer, Action, Indie, Aliens.

Alien Shooter TD header art

Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!

Reviews: Very Positive — 85% — of 908 reviews
Released: 2017-01-13
Developer: Sigma Team Inc.
Genres: Action, Indie, Strategy
Platforms: Windows
Median playtime: 3.8 hrs
Mean playtime: 7.3 hrs
Players ≥ 1 hr: 95%

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  1. #1 Alien Shooter 2: Reloaded
    97% matchVery Positive92% of 3,547 reviews2009
    Dev: Sigma Team Inc.
    Windows
    Median: 3.4 hrsMean: 11.7 hrs≥1hr: 90%

    This is the unique alloy of arcade action and RPG elements which combines well-established world of classical games and unmatched dynamics of the first part.

    Why similar: Aliens 23%, Gore 20.5%, Isometric 14.3%, Shooter 9.6%, Survival 8.4%

  2. #2 Alien Shooter 2 - The Legend
    96% matchMixed53% of 1,156 reviews2020
    Dev: Sigma Team Inc.
    Windows
    Median: 4.4 hrsMean: 29.5 hrs≥1hr: 92%

    Meet the completely reworked legendary game loved by millions of players worldwide! Alien Shooter 2 - the Legend is an ambitious follow-up to the famous Alien Shooter series.

    Why similar: Gore 19.8%, Aliens 16.2%, Inventory Management 13.4%, Isometric 11%, Shooter 9.7%

  3. #3 Let Them Come
    96% matchVery Positive84% of 1,363 reviews2017
    Dev: Tuatara GamesPub: Versus Evil
    Windows · Mac
    Median: 2.8 hrsMean: 3.7 hrs≥1hr: 83%

    Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.

    Why similar: Tower Defense 23.4%, Gore 17.4%, Aliens 14.1%, Violent 9.1%, Shooter 8.2%

  4. #4 Super Sanctum TD
    95% matchVery Positive86% of 1,577 reviews2013
    Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
    Windows · Mac
    Median: 1.9 hrsMean: 33.8 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 43%, Aliens 17.1%, Isometric 17.1%, Sci-fi 8.9%, Strategy 7.6%

  5. #5 2112TD: Tower Defense Survival
    94% matchVery Positive87% of 438 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 31.2%, Aliens 16.2%, Isometric 15%, Survival 12.7%, Sci-fi 11.1%

  6. #6 Defense Grid: The Awakening
    94% matchOverwhelmingly Positive96% of 5,340 reviews2008
    Dev: Hidden Path Entertainment
    Windows
    Median: 4.6 hrsMean: 15.0 hrs≥1hr: 91%

    Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.

    Why similar: Tower Defense 69.6%, Strategy 10%, Sci-fi 9.4%, Aliens 7.7%, Indie 1.9%

  7. #7 Alien Shooter
    93% matchOverwhelmingly Positive95% of 4,681 reviews2009
    Dev: Sigma Team Inc.
    Windows
    Median: 3.1 hrsMean: 9.5 hrs≥1hr: 85%

    The endless darkness and the somber, long passages of a military complex have become the abode of evil, thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories. About 1,000 monsters on each map, showing up to 100 monsters simultaneously on one playing screen.

    Why similar: Gore 33%, Aliens 18%, Isometric 13.3%, Shooter 11.8%, Sci-fi 8.3%

  8. #8 Alien Shooter: Revisited
    92% matchMixed64% of 860 reviews2009
    Dev: Sigma Team Inc.
    Windows
    Median: 3.2 hrsMean: 7.9 hrs≥1hr: 87%

    Crowds of blood-thirsty monsters, crawling from every corner of the secret research base. Gloomy basements and modern labs, darkness changing into blazing bulbs. The only usual thing is: you're in a bad place alone, and there's no one to help you!

    Why similar: Gore 42.2%, Shooter 15.6%, Isometric 14.9%, Aliens 13.4%, Action 8.6%

  9. #9 X-Morph: Defense
    91% matchVery Positive91% of 4,127 reviews2017
    Dev: EXOR Studios
    Windows
    Median: 3.0 hrsMean: 5.5 hrs≥1hr: 85%

    Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

    Why similar: Tower Defense 37.9%, Aliens 16.4%, Isometric 12.5%, Sci-fi 8.9%, Shooter 8.8%

  10. #10 Alien Hallway 2
    91% matchMixed67% of 169 reviews2017
    Dev: Sigma Team Inc.
    Windows
    Median: 3.1 hrsMean: 13.1 hrs≥1hr: 65%

    We're happy to present a new game in the Alien Shooter universe! Get prepared to unique tactical gameplay, lots of monster types and 8 fighter types allowing you create your own style of completing missions and defeating bosses.

    Why similar: Aliens 25.2%, Isometric 16.3%, Shooter 15.1%, Strategy 11.6%, Inventory Management 11.2%

  11. #11 Firebase Defence
    90% matchMostly Positive75% of 61 reviews2019
    Dev: Rasmus Agergaard
    Windows

    Firebase Defence is a new spin on the traditional tower defence gameplay. You have to defend yourself from the waves upon waves of incoming enemies. You are free to build, place and manage your available resources and units in any way you want. But failing to balance those will result in defeat!

    Why similar: Gore 29.4%, Tower Defense 24.6%, Violent 15.9%, Strategy 9%, Real Time Tactics 7.9%

  12. #12 Anomaly Defenders
    89% matchMostly Positive77% of 683 reviews2014
    Dev: 11 bit studios
    Windows · Mac · Linux
    Median: 3.2 hrsMean: 5.8 hrs≥1hr: 89%

    Anomaly Defenders is the closing installment of the Anomaly series. The original incarnation of the Tower Offense sub-genre had players controlling humans fighting alien invaders. Now, the tables have turned. The human counterattack is underway and the alien homeworld is under threat.

    Why similar: Tower Defense 63.3%, Strategy 19.2%, Action 7.9%, Sci-fi 5.4%, Indie 4.2%

  13. #13 No Creeps Were Harmed TD
    86% matchVery Positive89% of 488 reviews2024
    Dev: MinMax Games Ltd.
    Windows
    Median: 2.8 hrsMean: 5.6 hrs≥1hr: 76%

    Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!

    Why similar: Tower Defense 32%, Aliens 14.4%, Real Time Tactics 14.2%, Sci-fi 10.1%, Survival 9.3%

  14. #14 Defense: Abominations
    89% matchMostly Positive74% of 54 reviews2018
    Dev: Ominous Entertainment
    Windows · Mac · Linux

    Defense: Abominations is a first person tower defense game where you try to survive the abominations stored in the laboratory, as long as you can.

    Why similar: Gore 32.1%, Violent 17.3%, Tower Defense 15.3%, Strategy 9%, Survival 7.8%

  15. #15 Ancient Planet Tower Defense
    88% matchVery Positive82% of 1,196 reviews2015
    Dev: Moonlight Mouse
    Windows · Mac
    Median: 3.3 hrsMean: 7.5 hrs≥1hr: 92%

    Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders. Use powerful technologies of the Ancient and repel the attack of the enemy's armies!

    Why similar: Tower Defense 70.9%, Isometric 12.1%, Strategy 11.6%, Indie 3.1%, Atmospheric 2.3%

  16. #16 Revenge of the Titans
    87% matchVery Positive82% of 1,251 reviews2011
    Dev: Puppygames
    Windows · Mac · Linux
    Median: 2.1 hrsMean: 4.4 hrs≥1hr: 82%

    The ultimate mash-up of Real-time Strategy and Tower Defense!

    Why similar: Tower Defense 61.5%, Strategy 12.5%, Sci-fi 9.4%, Aliens 8.7%, Action 3.6%

  17. #17 Anomaly: Warzone Earth
    86% matchVery Positive87% of 4,680 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 43.7%, Strategy 23.7%, Sci-fi 12.4%, Aliens 8.7%, Action 6%

  18. #18 DG2: Defense Grid 2
    84% matchVery Positive86% of 3,405 reviews2014
    Dev: Hidden Path Entertainment
    Windows
    Median: 5.9 hrsMean: 11.3 hrs≥1hr: 89%

    Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.

    Why similar: Tower Defense 28.7%, Real Time Tactics 19.7%, Aliens 18.1%, Sci-fi 10.6%, Building 8.3%

  19. #19 Black blood
    85% matchMixed66% of 58 reviews2020
    Dev: Arcane Games
    Windows

    Black blood is a mix of hardcore Tower Defense strategy and top-down shooter. Act as a defender against alien invaders, attack and destroy all their insidious plans...

    Why similar: Tower Defense 30.6%, Aliens 20.9%, Survival 12.5%, Shooter 11.7%, Building 9.1%

  20. #20 Alien Shooter - Last Hope
    83% matchMostly Positive77% of 324 reviews2020
    Dev: Sigma Team Inc.
    Windows
    Median: 2.6 hrsMean: 7.4 hrs≥1hr: 75%

    New chapter in history of the legendary game, including 10 story missions.

    Why similar: Gore 33.1%, Isometric 18.3%, Aliens 15.8%, Shooter 15.7%, Sci-fi 8.3%

  21. #21 M.A.C.E. Tower Defense
    84% matchMostly Positive70% of 61 reviews2017
    Dev: EntwicklerX
    Windows

    M.A.C.E. Tower Defense is a classic tower defense game with unique towers and enemies and an ingame shop system for getting better towers, upgrade existing towers and buy special items.

    Why similar: Tower Defense 48.2%, Strategy 23.1%, Action 11.5%, Sci-fi 10.7%, Indie 6.5%

  22. #22 Infested Planet
    81% matchVery Positive94% of 3,030 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 44.7%, Strategy 18.8%, Aliens 14.3%, Sci-fi 10.8%, Action 6.2%

  23. #23 Stellar Survivor
    82% matchMixed66% of 175 reviews2019
    Dev: Sticks & Stones
    Windows

    Stranded on an alien planet, you must defend your Powercore! Use your weapons to fight hordes of alien enemies and strategically use traps in this new FPS tower-defense survival game!

    Why similar: Tower Defense 26.5%, Aliens 14.6%, Violent 12.6%, Survival 10.6%, Strategy 9.9%

  24. #24 League TD
    81% 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 60.6%, Sci-fi 16.8%, Strategy 16.6%, 3D 4.8%, Indie 0.7%

  25. #25 Aliens: Dark Descent
    77% matchVery Positive88% of 18,240 reviews2023
    Dev: Tindalos InteractivePub: Focus Entertainment
    Windows
    Median: 4.2 hrsMean: 15.1 hrs≥1hr: 87%

    Drop into the gripping journey of Aliens: Dark Descent, a squad-based, single-player action game in the iconic Alien franchise. Lead your soldiers in real-time to stop a new and terrifying kind of Xenomorph outbreak on Planet Lethe.

    Why similar: Real Time Tactics 22.9%, Aliens 15.9%, Strategy 12.1%, Sci-fi 10.6%, Isometric 9%

  26. #26 Alien Hallway
    82% matchMixed65% of 325 reviews2011
    Dev: Sigma Team Inc.
    Windows
    Median: 1.4 hrsMean: 6.6 hrs≥1hr: 54%

    Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

    Why similar: Tower Defense 25.4%, Aliens 18%, Inventory Management 11.9%, Shooter 10.5%, Sci-fi 9%

  27. #27 Zombie Defense
    79% matchVery Positive84% of 2,171 reviews2016
    Dev: Home Net Games
    Windows · Mac · Linux
    Median: 1.6 hrsMean: 7.0 hrs≥1hr: 58%

    A modern hybrid of the classic RTS and modern Tower Defense. Recruit soldiers, place them on slots and let them shoot incoming waves of zombies by their own. Order supplies, throw grenades, order airstrikes and many more... Perfect mix of strategy, tactics and micromanagement.

    Why similar: Tower Defense 54.1%, Survival 16.9%, Strategy 10.8%, Shooter 6%, Action 4.7%

  28. #28 Alien Shooter 2 Conscription
    80% matchVery Positive82% of 626 reviews2012
    Dev: Sigma Team Inc.
    Windows
    Median: 3.4 hrsMean: 9.8 hrs≥1hr: 94%

    The Great War has begun! The world population capable of functioning is mobilized to serve in the army and the outcome depends on you!

    Why similar: Gore 52.4%, Aliens 15%, Shooter 14.5%, Action 10.7%, Indie 5.4%

  29. #29 Strain Tactics
    79% matchVery Positive85% of 240 reviews2017
    Dev: Touch Dimensions Interactive
    Windows
    Median: 3.0 hrsMean: 10.3 hrs≥1hr: 63%

    Strain Tactics is a real-time-with-pause tactical game, where you command a squad of soldiers to liberate earth from an alien infestation. Using your helibase, deploy your custom squad and provide air support. Remember to keep your crew sane and motivated while staying clear of alien contamination!

    Why similar: Gore 26.7%, Real Time Tactics 21%, Aliens 14.6%, Strategy 11.9%, Violent 8.7%

  30. #30 Unstoppable Gorg
    78% matchMostly Positive79% of 307 reviews2012
    Dev: Futuremark
    Windows · Mac
    Median: 36 minMean: 6.4 hrs≥1hr: 40%

    Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!

    Why similar: Tower Defense 65.1%, Strategy 11.2%, Aliens 9.5%, Sci-fi 8%, Action 3.7%

  31. #31 Alien Robot Monsters
    78% 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 54.4%, Strategy 25.3%, Action 13.1%, Indie 7.2%

  32. #32 Palpus X Annihilation
    73% matchVery Positive96% of 67 reviews2026
    Dev: Sebastian Vargek (Meister Palpus)
    Windows

    Isometric action shooter with light RPG elements. Brutally kill tons of alien monsters, find over a dozen powerful weapons, skill up your hero & stop the blood thirsty invaders in a classic handcrafted campaign. Never ending waves await you in horde-mode!

    Why similar: Aliens 21.8%, Isometric 19.5%, Shooter 13.4%, Violent 11.8%, Gore 10.7%

  33. #33 Protolife
    76% matchVery Positive86% of 470 reviews2018
    Dev: Volcanic Giraffe
    Windows · Mac
    Median: 3.8 hrsMean: 7.8 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 46.3%, Aliens 19%, Sci-fi 14.4%, Strategy 11.8%, Atmospheric 3.8%

  34. #34 Tower Dominion
    72% matchVery Positive86% of 5,105 reviews2025
    Dev: Parallel 45 Games
    Windows
    Median: 11.8 hrsMean: 22.1 hrs≥1hr: 89%

    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 39.1%, Isometric 12%, Aliens 11.1%, Military 10.1%, Strategy 9.4%

  35. #35 Radiant Defense
    77% matchVery Positive83% of 148 reviews2014
    Dev: Hexage
    Windows

    MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin!

    Why similar: Tower Defense 42.6%, Real Time Tactics 21%, Strategy 12.3%, Aliens 10.5%, Sci-fi 5.8%

  36. #36 Deathtrap
    75% matchVery Positive84% of 2,258 reviews2015
    Dev: NeocoreGames
    Windows
    Median: 3.5 hrsMean: 8.9 hrs≥1hr: 86%

    Deathtrap is a Tower Defense game with strong action-RPG elements, a game of vicious tricks, killing machines, rotating blades and splattering blood.

    Why similar: Tower Defense 45.1%, Gore 20.2%, Isometric 16.8%, Strategy 9.1%, Action 4.9%

  37. #37 Gore Storm
    74% matchVery Positive94% of 70 reviews2023
    Dev: Gundorado
    Windows

    Battle massive hordes of alien monsters to secure humanity's presence on planet Gore. Upgrade your base, hire troops, and install turrets to fight back the ever growing waves of aliens.

    Why similar: Tower Defense 30.7%, Gore 16.7%, Shooter 12.9%, Survival 12.8%, Aliens 12.4%

  38. #38 Deadstone
    76% matchVery Positive80% of 70 reviews2014
    Dev: Timeslip Softworks
    Windows · Mac · Linux
    Median: 2.7 hrsMean: 4.0 hrs≥1hr: 79%

    Based on the inhospitable frontier world of Mars, against the backdrop of a bacterial outbreak, Deadstone offers a compelling blend of frantic combat and tower defense, backed by a highly nuanced character development system and strategic elements of resource management.

    Why similar: Violent 36.4%, Strategy 20.4%, Sci-fi 20.4%, Action 16.5%, Indie 6.4%

  39. #39 Artificial Defense
    75% matchVery Positive82% of 210 reviews2016
    Dev: Thiemo Bolder, ONEMANGAMES
    Windows
    Median: 3.5 hrsMean: 4.9 hrs≥1hr: 95%

    Artificial Defense is a one man made, real time strategy game combining orbital shooter and tower defense components within an electrifying, virtual reality setting. You are the machine, a mighty computer-system defending its servers against swarms of intruding creeps.

    Why similar: Tower Defense 42.4%, Strategy 32.3%, Action 15.3%, Indie 9.9%

  40. #40 TDS - Tower Defense Strategy
    71% matchVery Positive81% of 365 reviews2025
    Dev: Blockage
    Windows · Mac · Linux

    TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends. Protect your Basin at all costs. An absolute Tower Defense, Real-Time Strategy Hybrid

    Why similar: Tower Defense 59.6%, Building 16%, Atmospheric 8.5%, Strategy 7.3%, 3D 4%

  41. #41 Artisan TD
    70% matchVery Positive87% of 2,444 reviews2024
    Dev: 4rtisansPub: Unexpected
    Windows
    Median: 2.7 hrsMean: 4.8 hrs≥1hr: 75%

    Artisan TD is a puzzle-oriented Tower Defense game where you must survive by building mazes.

    Why similar: Tower Defense 46.3%, Real Time Tactics 24.2%, Strategy 12.5%, Building 11.8%, 3D 2.3%

  42. #42 Module TD. Sci-Fi Tower Defense
    74% matchMixed67% of 55 reviews2018
    Dev: Gyro-Games Inc.
    Windows

    This is Sci-fi Tower Defense created by gamers for gamers.

    Why similar: Strategy 77%, Indie 23%

  43. #43 Tactical Combat Department
    73% matchMixed63% of 116 reviews2022
    Dev: LukasHPub: Render System
    Windows

    Tactical Combat Department is a tactical turn-based strategy game inspired by Swat games. You command a special intervention squad that intervenes in various situations and environments.

    Why similar: Gore 27%, Isometric 20.5%, Military 18.4%, Violent 14.5%, Shooter 8.9%

  44. #44 Road Defense: Outsiders
    70% matchVery Positive83% of 162 reviews2023
    Dev: Minicactus Games
    Windows
    Median: 2.2 hrsMean: 2.7 hrs≥1hr: 62%

    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: Tower Defense 40.7%, Isometric 29.8%, Shooter 15.4%, Action 7%, Indie 4.6%

  45. #45 Infectonator: Survivors
    72% matchMixed67% of 1,157 reviews2016
    Dev: Toge Productions
    Windows · Mac
    Median: 3.1 hrsMean: 5.4 hrs≥1hr: 87%

    "Infectonator : Survivors" is a Randomized Permadeath Survival Simulator that combines RTS, Tower Defense, Roguelike, and Management-Simulation gameplay. The goal is to lead a group of survivors in a struggle to stay alive and find rescue in a zombie apocalyptic world.

    Why similar: Tower Defense 33.8%, Survival 21%, Strategy 15.5%, Gore 13.9%, Violent 6.9%

  46. #46 Stellar Initiative
    68% matchMostly Positive77% of 401 reviews2024
    Dev: Five Head Games
    Windows
    Median: 1.7 hrsMean: 6.4 hrs≥1hr: 66%

    Stellar Initiative is a roguelike tower defense game where you land on the planet and use your orbit ship to deliver buildings and support you with fire. Complete missions, install new upgrades, discover powerful artifacts, and find the best strategy!

    Why similar: Tower Defense 48.9%, Aliens 18.6%, Sci-fi 15.4%, Strategy 12%, Building 4.1%

  47. #47 Neural Shock
    68% matchVery Positive95% of 66 reviews2024
    Dev: Hardwired Studios
    Windows · Mac · Linux

    Control your Hero to aid your Turrets and Traps in battle in this grim, dark Tower Defense & Action RPG with a scifi-grindhouse aesthetic. Create deadly weapon barrages and fuse together Bleed, Burn, Shock, Freeze, Stun and many more elements to annihilate your enemies.

    Why similar: Tower Defense 52.8%, Strategy 15.9%, Sci-fi 12.5%, Horror 8.6%, Indie 4.2%

  48. #48 Artificial Extinction 2
    67% matchMostly Positive77% of 98 reviews2026
    Dev: 100Hr Games Inc
    Windows

    A Tower Defense hybrid where survival depends on strategy and firepower. Build turrets, mine resources, and hold the line against relentless AI swarms. Switch instantly between commanding the battlefield in RTS view or fighting on the ground in FPS combat.

    Why similar: Tower Defense 28.5%, Aliens 16.2%, Isometric 15.4%, Military 14.3%, Shooter 10.6%

  49. #49 SENTRY
    67% matchVery Positive82% of 891 reviews2024
    Dev: Fireblade Software
    Windows
    Median: 2.9 hrsMean: 5.4 hrs≥1hr: 76%

    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.

    Why similar: Tower Defense 31.4%, Aliens 14%, Survival 12.3%, Sci-fi 10.6%, Inventory Management 10.1%

  50. #50 Defence to death
    71% matchMixed56% of 275 reviews2017
    Dev: Laush Dmitriy SergeevichPub: Laush Studio
    Windows
    Median: 3.1 hrsMean: 5.1 hrs≥1hr: 92%

    "Defence to death" - game in genre "Tower Defence". Defend Your castle from monster! Show Your's strength and wisdom.

    Why similar: Tower Defense 41.6%, Real Time Tactics 15.2%, Strategy 12%, Survival 11.4%, Building 7.5%

  51. #51 Dead Ground
    71% matchMixed61% of 115 reviews2018
    Dev: DIG Games
    Windows · Linux
    Median: 6 minMean: 7.4 hrs≥1hr: 30%

    Tower defense reimagined! Dead Ground is a procedurally generated tower defense game with rogue-like elements. Each playthrough will offer randomly generated guns, skills and augments. You'll have to travel, collect scrap, water, manage your inventory and upgrade your base to survive!

    Why similar: Tower Defense 74%, Strategy 10.7%, Action 5.7%, Shooter 5.6%, Indie 3.3%

  52. #52 Defense Technica
    73% matchMostly Negative40% of 189 reviews2013
    Dev: Kuno Interactive
    Windows · Mac
    Median: 3.4 hrsMean: 4.6 hrs≥1hr: 95%

    Defense Technica is the next evolution in hardcore tower defense strategy games. Protect the core from an onslaught of unrelenting biomechanical terrors with a powerful range of tower defense units – each with their own upgradable features and methods of attacks.

    Why similar: Tower Defense 83.2%, Strategy 13.5%, Indie 3.4%

  53. #53 Shadowgrounds
    70% matchVery Positive81% of 1,617 reviews2006
    Dev: Frozenbyte
    Windows · Mac
    Median: 2.1 hrsMean: 16.1 hrs≥1hr: 86%

    Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...

    Why similar: Aliens 24.3%, Gore 22.9%, Isometric 14.6%, Sci-fi 13.1%, Shooter 10.7%

  54. #54 Dungeon Warfare
    67% matchOverwhelmingly Positive96% of 2,005 reviews2015
    Dev: Valsar
    Windows · Mac · Linux
    Median: 3.7 hrsMean: 11.2 hrs≥1hr: 90%

    Dungeon Warfare is a challenging tower defense strategy game where you become a dungeon lord to defend your dungeons with deadliest of traps and insidious contraptions against greedy adventurers and wanna-be heroes.

    Why similar: Tower Defense 43.4%, Gore 29.7%, Strategy 11.2%, Building 10.4%, Indie 3.3%

  55. #55 Dome Keeper
    64% matchVery Positive92% of 21,423 reviews2022
    Dev: BippinbitsPub: Raw Fury
    Windows · Mac · Linux
    Median: 4.2 hrsMean: 11.3 hrs≥1hr: 87%

    Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!

    Why similar: Tower Defense 52%, Sci-fi 24%, Action 10.8%, Atmospheric 8.6%, Singleplayer 4.5%

  56. #56 OTTTD
    69% matchMostly Positive75% of 359 reviews2014
    Dev: SMG Studio
    Windows · Mac · Linux
    Median: 2.8 hrsMean: 4.8 hrs≥1hr: 93%

    Take command of HEROCORP™ and launch a Preemptive Defence Campaign™ against parallel dimensions in OTTTD, the most outrageous Tower Defence title around.

    Why similar: Tower Defense 29.7%, Gore 26.6%, Real Time Tactics 14.7%, Violent 14.1%, Strategy 7.8%

  57. #57 GROSS
    66% matchMostly Positive80% of 298 reviews2023
    Dev: hangry owl games
    Windows
    Median: 1.2 hrsMean: 10.0 hrs≥1hr: 51%

    GROSS is a unique twist on the classic tower defense genre. After building your defenses, you will jump into the action to take on enemies head-on. Make sure to collect as much cash as possible to upgrade your defenses and stay ahead of the game. Can you outlast the waves of enemies?

    Why similar: Tower Defense 35%, Gore 30.7%, Shooter 10.8%, Strategy 8.6%, Survival 6.7%

  58. #58 Starship Troopers: Terran Command
    64% matchVery Positive87% of 11,887 reviews2022
    Dev: The ArtistocratsPub: Slitherine Ltd.
    Windows
    Median: 3.4 hrsMean: 10.2 hrs≥1hr: 83%

    Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

    Why similar: Strategy 23.2%, Military 22.3%, Sci-fi 13.4%, Tower Defense 12.8%, Aliens 10.9%

  59. #59 Blood Waves
    69% matchMixed68% of 197 reviews2018
    Dev: Light Road Games
    Windows
    Median: 48 minMean: 196.1 hrs≥1hr: 46%

    Hardcore and bloody shooter where you will have to repel the attacks of the living dead using the destroying traps, defensive barricades and also weapon of close and long-range combat.

    Why similar: Tower Defense 25.3%, Gore 21.8%, Survival 12.8%, Shooter 12.2%, Building 7.5%

  60. #60 Jupiter Hell Classic
    63% matchVery Positive96% of 224 reviews2025
    Dev: ChaosForgePub: Hyperstrange
    Windows

    Jupiter Hell Classic is a old-school true Roguelike shooter with turn-based tactics, permadeath, procedural levels, and 90s sci-fi carnage in its purest form. Rip and Tear!

    Why similar: Sci-fi 42.1%, Horror 28.6%, Strategy 26.9%, Singleplayer 2.4%

Modeli
Alien Shooter TD cover art

Games Like Alien Shooter TD

Based on tag similarity + player behavior
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