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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 3,498 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 25.2%, Isometric 15.8%, Gore 15.3%, Shooter 10.5%, Survival 9.2%

  2. #2 Super Sanctum TD
    96% matchVery Positive87% of 1,575 reviews2013
    Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
    Windows · Mac
    Median: 1.9 hrsMean: 33.2 hrs≥1hr: 75%

    Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

    Why similar: Tower Defense 43.1%, Isometric 17.1%, Aliens 17%, Sci-fi 8.8%, Strategy 7.6%

  3. #3 Alien Shooter 2 - The Legend
    96% matchMixed52% of 1,143 reviews2020
    Dev: Sigma Team Inc.
    Windows
    Median: 4.4 hrsMean: 29.4 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: Aliens 17.2%, Gore 16.1%, Inventory Management 14.5%, Isometric 11.8%, Shooter 10.3%

  4. #4 Let Them Come
    95% matchVery Positive84% of 1,353 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 24.6%, Aliens 14.7%, Gore 13.8%, Violent 9.5%, Shooter 8.5%

  5. #5 2112TD: Tower Defense Survival
    94% matchVery Positive88% of 428 reviews2023
    Dev: Refinery Games
    Windows

    Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.

    Why similar: Tower Defense 31.3%, Aliens 16.2%, Isometric 15%, Survival 12.7%, Sci-fi 11%

  6. #6 Alien Shooter
    94% matchOverwhelmingly Positive95% of 4,607 reviews2009
    Dev: Sigma Team Inc.
    Windows
    Median: 3.1 hrsMean: 9.1 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: Blood 32.8%, Gore 14.9%, Aliens 14.1%, Isometric 10.5%, Shooter 9.1%

  7. #7 X-Morph: Defense
    93% matchVery Positive92% of 4,073 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 16.3%, Isometric 12.6%, Sci-fi 8.9%, Shooter 8.7%

  8. #8 Anomaly Defenders
    92% matchMostly Positive77% of 676 reviews2014
    Dev: 11 bit studios
    Windows · Mac · Linux
    Median: 3.2 hrsMean: 5.7 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 63.5%, Strategy 19.4%, Action 7.8%, Sci-fi 5%, Indie 4.3%

  9. #9 Defense Grid: The Awakening
    91% matchOverwhelmingly Positive96% of 5,303 reviews2008
    Dev: Hidden Path Entertainment
    Windows
    Median: 4.6 hrsMean: 15.1 hrs≥1hr: 91%

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

    Why similar: Tower Defense 69.5%, Strategy 10.1%, Sci-fi 9.3%, Aliens 7.7%, Indie 2%

  10. #10 Alien Hallway 2
    91% matchMixed68% of 168 reviews2017
    Dev: Sigma Team Inc.
    Windows
    Median: 2.7 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 25.8%, Isometric 16.8%, Shooter 15.3%, Strategy 12%, Inventory Management 11.7%

  11. #11 Anomaly: Warzone Earth
    90% matchVery Positive87% of 4,668 reviews2011
    Dev: 11 bit studios
    Windows · Mac · Linux
    Median: 2.4 hrsMean: 11.0 hrs≥1hr: 88%

    Lead an armored squad through the perils of this reversed tower defense action-strategy game!

    Why similar: Tower Defense 43.9%, Strategy 23.7%, Sci-fi 12.3%, Aliens 8.6%, Action 5.9%

  12. #12 Black blood
    89% matchMixed67% of 57 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 30.7%, Aliens 20.8%, Survival 12.5%, Shooter 11.6%, Building 9.1%

  13. #13 Ancient Planet Tower Defense
    89% matchVery Positive82% of 1,186 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 71.2%, Isometric 11.8%, Strategy 11.6%, Indie 3.1%, Atmospheric 2.3%

  14. #14 Infested Planet
    88% matchVery Positive94% of 3,014 reviews2014
    Dev: Rocket Bear Games
    Windows
    Median: 3.1 hrsMean: 5.9 hrs≥1hr: 88%

    Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.

    Why similar: Tower Defense 44.8%, Strategy 18.8%, Aliens 14.2%, Sci-fi 10.7%, Action 6.1%

  15. #15 No Creeps Were Harmed TD
    84% matchVery Positive89% of 482 reviews2024
    Dev: MinMax Games Ltd.
    Windows
    Median: 2.8 hrsMean: 5.5 hrs≥1hr: 74%

    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 32.9%, Real Time Tactics 14.6%, Aliens 14.6%, Sci-fi 10.3%, Survival 9.6%

  16. #16 Revenge of the Titans
    86% matchVery Positive82% of 1,250 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 12.6%, Sci-fi 9.3%, Aliens 8.7%, Action 3.6%

  17. #17 Alien Shooter: Revisited
    87% matchMixed64% of 849 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 34.7%, Shooter 17.4%, Isometric 16.9%, Aliens 15.2%, Action 9.7%

  18. #18 Defense: Abominations
    86% 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 26.3%, Violent 18.8%, Tower Defense 16.6%, Strategy 9.8%, Survival 8.5%

  19. #19 Firebase Defence
    85% 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: Tower Defense 27%, Gore 24.4%, Violent 17.4%, Strategy 10%, Real Time Tactics 8.7%

  20. #20 DG2: Defense Grid 2
    84% matchVery Positive86% of 3,339 reviews2014
    Dev: Hidden Path Entertainment
    Windows
    Median: 6.0 hrsMean: 11.4 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 28.6%, Real Time Tactics 19.8%, Aliens 18%, Sci-fi 10.5%, Building 8.3%

  21. #21 Stellar Survivor
    83% 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 26.6%, Aliens 14.6%, Violent 12.6%, Survival 10.6%, Strategy 10%

  22. #22 M.A.C.E. Tower Defense
    82% 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 23.2%, Action 11.4%, Sci-fi 10.7%, Indie 6.5%

  23. #23 Deathtrap
    81% matchVery Positive84% of 2,246 reviews2015
    Dev: NeocoreGames
    Windows
    Median: 3.5 hrsMean: 9.0 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 39.9%, Blood 29.4%, Isometric 14.8%, Strategy 8.1%, Action 4.3%

  24. #24 Tower Dominion
    77% matchVery Positive86% of 4,827 reviews2025
    Dev: Parallel 45 Games
    Windows
    Median: 11.7 hrsMean: 21.5 hrs≥1hr: 90%

    Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!

    Why similar: Tower Defense 39.8%, Isometric 12.3%, Aliens 11.3%, Military 10.3%, Strategy 9.7%

  25. #25 Aliens: Dark Descent
    78% matchVery Positive88% of 17,771 reviews2023
    Dev: Tindalos InteractivePub: Focus Entertainment
    Windows
    Median: 4.2 hrsMean: 14.9 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 16.1%, Strategy 12.5%, Sci-fi 10.9%, Isometric 9.2%

  26. #26 Alien Shooter - Last Hope
    81% matchMostly Positive78% of 321 reviews2020
    Dev: Sigma Team Inc.
    Windows
    Median: 2.7 hrsMean: 7.4 hrs≥1hr: 75%

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

    Why similar: Gore 27.4%, Isometric 20%, Shooter 17%, Aliens 17%, Sci-fi 9%

  27. #27 Alien Hallway
    82% matchMixed65% of 325 reviews2011
    Dev: Sigma Team Inc.
    Windows
    Median: 1.4 hrsMean: 6.5 hrs≥1hr: 53%

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

    Why similar: Tower Defense 25.8%, Aliens 18.1%, Inventory Management 12.3%, Shooter 10.6%, Sci-fi 9.1%

  28. #28 League TD
    79% 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 63.7%, Sci-fi 17.5%, Strategy 17.5%, Indie 0.7%, Singleplayer 0.6%

  29. #29 Alien Shooter 2 Conscription
    80% matchVery Positive82% of 620 reviews2012
    Dev: Sigma Team Inc.
    Windows
    Median: 3.4 hrsMean: 9.9 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 44%, Aliens 17.7%, Shooter 16.9%, Action 12.5%, Indie 6.4%

  30. #30 Palpus X Annihilation
    76% matchVery Positive96% of 53 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 19.2%, Isometric 17.2%, Gore 16.9%, Shooter 11.7%, Violent 10.4%

  31. #31 Alien Robot Monsters
    79% 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 54.3%, Strategy 25.5%, Action 12.9%, Indie 7.3%

  32. #32 Strain Tactics
    78% matchVery Positive85% of 239 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: Real Time Tactics 22.4%, Gore 21.6%, Aliens 15.5%, Strategy 12.8%, Violent 9.2%

  33. #33 DOOMED
    77% matchMixed56% of 187 reviews2018
    Dev: Bloody Pixel Games
    Windows
    Median: 36 minMean: 4.0 hrs≥1hr: 42%

    DOOMED is a First Person Shooter with horror elements, heavily inspired by old-school shooter classics.

    Why similar: Blood 30.4%, Gore 14.8%, Aliens 11.9%, Violent 10.5%, Sci-fi 7.8%

  34. #34 Protolife
    74% matchVery Positive86% of 465 reviews2018
    Dev: Volcanic Giraffe
    Windows · Mac
    Median: 3.2 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 46.3%, Aliens 18.9%, Sci-fi 14.3%, Strategy 11.9%, Atmospheric 3.8%

  35. #35 Radiant Defense
    75% matchVery Positive83% of 146 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 42.5%, Real Time Tactics 21%, Strategy 12.4%, Aliens 10.5%, Sci-fi 5.8%

  36. #36 Blood Waves
    75% matchMixed68% of 197 reviews2018
    Dev: Light Road Games
    Windows
    Median: 48 minMean: 198.2 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: Blood 26.5%, Tower Defense 23.9%, Survival 12%, Shooter 11.3%, Building 7.1%

  37. #37 Defense Technica
    76% matchMostly Negative40% of 188 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 83.1%, Strategy 13.5%, Indie 3.4%

  38. #38 Unstoppable Gorg
    74% matchMostly Positive79% of 306 reviews2012
    Dev: Futuremark
    Windows · Mac
    Median: 36 minMean: 6.3 hrs≥1hr: 40%

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

    Why similar: Tower Defense 65.2%, Strategy 11.3%, Aliens 9.5%, Sci-fi 8%, Action 3.6%

  39. #39 Gore Storm
    71% 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 32.1%, Survival 13.3%, Shooter 13.3%, Gore 13.2%, Aliens 12.9%

  40. #40 Deadstone
    73% matchMostly Positive80% of 70 reviews2014
    Dev: Timeslip Softworks
    Windows · Mac · Linux
    Median: 2.6 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 36.3%, Strategy 20.6%, Sci-fi 20.3%, Action 16.3%, Indie 6.5%

  41. #41 Zombie Shooter
    73% matchVery Positive83% of 1,315 reviews2009
    Dev: Sigma Team Inc.
    Windows
    Median: 1.0 hrsMean: 5.4 hrs≥1hr: 50%

    The human race is in danger again. This time scientists could not cope the imminent threat and became monsters themselves. Crowds of zombie people filled the secret research base. The dreadful contagion is about to spread earth wide. Use the last chance to save the humanity from total annihilation!

    Why similar: Blood 38.4%, Gore 19.3%, Shooter 10.8%, Isometric 7.1%, Inventory Management 6.7%

  42. #42 OTTTD
    73% matchMostly Positive75% of 356 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 31.8%, Gore 21.5%, Real Time Tactics 15.7%, Violent 15%, Strategy 8.4%

  43. #43 Tactical Combat Department
    72% matchMixed63% of 111 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: Isometric 22%, Gore 21.9%, Military 19.5%, Violent 15.5%, Shooter 9.4%

  44. #44 TDS - Tower Defense Strategy
    68% matchVery Positive81% of 354 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 62%, Building 16.6%, Atmospheric 8.9%, Strategy 7.7%, Indie 2.5%

  45. #45 Road Defense: Outsiders
    69% matchVery Positive84% of 159 reviews2023
    Dev: Minicactus Games
    Windows
    Median: 1.9 hrsMean: 2.5 hrs≥1hr: 60%

    Protect vehicles on the road and survive! Road Defense: Outsiders is a game that combines elements of the 'roguelike' and 'tower defense' genres. Upgrade the towers and your own skills to be able to annihilate all the life around you!

    Why similar: Tower Defense 40.7%, Isometric 30%, Shooter 15.1%, Action 7%, Indie 4.7%

  46. #46 Defense Task Force - Sci Fi Tower Defense
    72% matchMixed66% of 53 reviews2018
    Dev: ChillX Ltd
    Windows

    Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.

    Why similar: Tower Defense 61.1%, Strategy 18.7%, Sci-fi 14.8%, Indie 5.4%

  47. #47 Artisan TD
    67% matchVery Positive89% of 2,252 reviews2024
    Dev: 4rtisansPub: Unexpected
    Windows
    Median: 3.1 hrsMean: 9.2 hrs≥1hr: 78%

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

    Why similar: Tower Defense 47.2%, Real Time Tactics 24.9%, Strategy 12.8%, Building 12.1%, Singleplayer 1.6%

  48. #48 Module TD. Sci-Fi Tower Defense
    71% matchMixed67% of 55 reviews2018
    Dev: Gyro-Games Inc.
    Windows

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

    Why similar: Strategy 76.9%, Indie 23.1%

  49. #49 Zombie Defense
    70% matchVery Positive84% of 2,165 reviews2016
    Dev: Home Net Games
    Windows · Mac · Linux
    Median: 1.6 hrsMean: 6.8 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 54.2%, Survival 16.8%, Strategy 10.9%, Shooter 5.9%, Action 4.7%

  50. #50 SENTRY
    67% matchVery Positive83% of 853 reviews2024
    Dev: Fireblade Software
    Windows
    Median: 2.7 hrsMean: 5.2 hrs≥1hr: 70%

    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 32.1%, Aliens 14.2%, Survival 12.5%, Sci-fi 10.8%, Inventory Management 10.5%

  51. #51 Infectonator: Survivors
    71% matchMixed67% of 1,151 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 35.2%, Survival 21.8%, Strategy 16.3%, Gore 10.5%, Violent 7.1%

  52. #52 Artificial Defense
    70% 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 32.5%, Action 15%, Indie 10%

  53. #53 Yet Another Zombie Defense HD
    68% matchVery Positive84% of 3,026 reviews2017
    Dev: Awesome Games Studio
    Windows
    Median: 2.4 hrsMean: 5.1 hrs≥1hr: 75%

    Top-down zombie shooter with tower defense elements featuring up to 4 players local and online co-op. Build your base by day, defend it by night, put your skills to the test to stay alive as long as possible! Darkness is coming. How long can YOU survive?

    Why similar: Tower Defense 26.7%, Gore 18.2%, Violent 13.6%, Isometric 12.4%, Shooter 9.2%

  54. #54 Neural Shock
    66% 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 16%, Sci-fi 12.4%, Horror 8.6%, Indie 4.2%

  55. #55 Stellar Initiative
    66% matchMostly Positive77% of 390 reviews2024
    Dev: Five Head Games
    Windows
    Median: 1.7 hrsMean: 6.6 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 18.5%, Sci-fi 15.4%, Strategy 12.1%, Building 4.1%

  56. #56 Rush for Glory
    70% matchMixed61% of 148 reviews2014
    Dev: Parseh Game StudioPub: KATNAPPE SP. Z O. O.
    Windows
    Median: 24 minMean: 29.8 hrs≥1hr: 34%

    Rush for Glory is featuring challenging and rewarding Tower Defense battles, in which players are defending their base against an alien invasion. By strategically building towers and upgrading them, the player can keep his base safely and further progress through the extensive singleplayer campaign.

    Why similar: Tower Defense 70.8%, Strategy 20.9%, Action 8.3%

  57. #57 Dungeon Warfare
    67% matchOverwhelmingly Positive96% of 1,987 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 46.5%, Gore 24.3%, Strategy 12.1%, Building 11.2%, Indie 3.6%

  58. #58 Defense Zone
    69% matchVery Positive83% of 83 reviews2014
    Dev: Artem Kotov
    Windows · Mac · Linux

    Stunning detail of levels, in-depth gameplay, finely tuned balance of all levels and turrets. During the game you will hold your defense with your turrets against the massive hordes of enemies.

    Why similar: Tower Defense 72.5%, Strategy 21.8%, Indie 5.8%

  59. #59 Starship Troopers: Terran Command
    64% matchVery Positive87% of 11,704 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 25%, Military 24%, Sci-fi 14.1%, Tower Defense 12.5%, Aliens 10.8%

  60. #60 GemCraft - Chasing Shadows
    65% matchVery Positive95% of 4,334 reviews2015
    Dev: Game in a BottlePub: Armor Games Studios
    Windows
    Median: 4.6 hrsMean: 19.2 hrs≥1hr: 91%

    An epic, challenging tower defense game with an emphasis on strategy and replayability. Summon gems of immense magical potency and harness their unique abilities against a seemingly endless horde of monsters. The archdemon seeks to swallow the world, and you must journey to stand against her.

    Why similar: Tower Defense 79.1%, Strategy 14%, Indie 2.7%, Action 2.6%, Singleplayer 1.6%

Alien Shooter TD cover art

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