Games like Alien Shooter TD on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Alien Shooter TD are available at the bottom of the page.
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Anomaly Warzone Earth Mobile Campaign
Anomaly Warzone Earth Mobile Campaign continues Steam's Anomaly Warzone Earth in an extra 15-level campaign. Originally released on mobile devices, the campaign is brought to Steam for PC, Mac and Linux exclusively in Anomaly Bundle. AWE Mobile Campaign turns tower defense on its head.
Anomaly Korea
Exclusively brought to Steam for PC, Mac and Linux in Anomaly Bundle, Anomaly Korea is an expansion campaign to Anomaly Warzone Earth. The alien robots are back and this time they’ve got Korea in their sights. It’s your job to lead a squad into fierce fire-fights and fend off the alien invasion.
Anomaly Defenders
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.
The Culling Of The Cows
The Culling Of The Cows is a side-scrolling shooter / tower defence game. You will take the role of Sammy, a soliloquizing schizophrenic farmer with a self prophesied mission to lay waste to the disease spreading over his farm.
Anomaly 2
Anomaly 2 is a sequel to the critically acclaimed Anomaly Warzone Earth. Maintaining the core elements of the original, Anomaly 2 adds plenty of new features: unit morphing, over million tactical combinations, post-apo world and tower defense vs tower offense multiplayer mode.
X-Morph: Defense
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.
Unstoppable Gorg
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Alien Hallway
Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.
Infested Planet
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.
Anomaly: Warzone Earth
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Oh My Gore!
Control the Powers of Evil to crush the Good Guys! Take control of the revived God of War Raelius, recruit evil minions, build bastions of doom and command your groveling servants.
Let Them Come
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.
Defense Zone 3 Ultra HD
The sequel to the hit strategy game, with new weapons, landscapes, and options.
Alien Shooter
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.
Taur
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
Toy Soldiers: Complete
Bring your toys to life in this action-packed, Toy Soldiers game bundle which includes the original Toy Soldiers, Toy Soldiers: Cold War, and all four DLC’s – Kaiser’s Battle, Invasion, Napalm and Evil Empire.
CARNAGE OFFERING Tower Defense
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Fortified
Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.
Age of Steel: Recharge
"Age of Steel: Recharge" is a 2D strategy with a view from the side. You're taking the role of commander, who was entrusted the management of the military base. Your mission is to defend a base from the waves of enemies at any price.
Fieldrunners 2
Get ready to DEFEND THE WORLD! The biggest sequel in tower defense history is finally here: Fieldrunners 2 has arrived! From Subatomic Studios, creators of the award winning classic strategy game comes an all new adventure that was years in the making.
Cruel Arena
Cruel Arena is a classic arena survival zombie game. Face endless hordes and survive as much as you can, Through The Doodles and The Frames!! Will you do the best record among your friends?
SENTRY
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.
Sanctum 2
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Most played games like Alien Shooter TD on Steam
Take a look at the top games like Alien Shooter TD that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.
1. DOOM Eternal
Similarity 46% Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity. The only thing they fear... is you. DOOM Eternal is a fps, action and gore game developed by id Software and published by Bethesda Softworks. Released on March 19th 2020 has received 206,026 reviews of which 187,807 were positive and 18,219 were negative resulting in an impressive rating of 9.0 out of 10. The game has hit the top spot as the #1 most played game like Alien Shooter TD, thanks to its 2,262 peak concurrent players over the last day.
9.0
187,807
18,219
2,262
players
2. DOOM
Similarity 46% Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression. DOOM is a fps, gore and action game developed by id Software and published by Bethesda Softworks. Released on May 12th 2016 has received 207,279 reviews of which 198,001 were positive and 9,278 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 1,590 players online at once in the last 24 hours, this game is currently ranked #2 among games like Alien Shooter TD based on player count.
9.4
198,001
9,278
1,590
players
3. Mortal Kombat 1
Similarity 43% Discover a reborn Mortal Kombat™ Universe created by the Fire God Liu Kang. Mortal Kombat™ 1 ushers in a new era of the iconic franchise with a new fighting system, game modes, and fatalities! Mortal Kombat 1 is a fighting, action and gore game developed by NetherRealm Studios and QLOC and published by Warner Bros. Games. Released on September 19th 2023 has received 37,125 reviews of which 25,879 were positive and 11,246 were negative resulting in a rating of 6.9 out of 10. While seeing 1,149 players online at once in the last 24 hours, this game is currently ranked #3 among games like Alien Shooter TD based on player count.
6.9
25,879
11,246
1,149
players
4. Bloons TD Battles 2
Similarity 42% From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 32,320 reviews of which 27,193 were positive and 5,127 were negative resulting in a rating of 8.3 out of 10. With 535 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Alien Shooter TD.
8.3
27,193
5,127
535
players
5. The Perfect Tower II
Similarity 47% The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,639 reviews of which 3,201 were positive and 438 were negative resulting in a rating of 8.5 out of 10. With 491 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Alien Shooter TD.
8.5
3,201
438
491
players
6. Mortal Kombat X
Similarity 44% Experience the Next Generation of the #1 Fighting Franchise. Mortal Kombat X combines unparalleled, cinematic presentation with all new gameplay. Mortal Kombat X is a fighting, gore and action game developed by NetherRealm Studios and QLOC and published by Warner Bros. Games and Warner Bros. Interactive Entertainment. Released on April 13th 2015 has received 56,252 reviews of which 48,077 were positive and 8,175 were negative resulting in a rating of 8.4 out of 10. With 426 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Alien Shooter TD.
8.4
48,077
8,175
426
players
7. Thronefall
Similarity 44% A minimalist game about building and defending your little kingdom. Thronefall is a tower defense, strategy and city builder game developed and published by GrizzlyGames. Released on October 11th 2024 has received 20,544 reviews of which 19,846 were positive and 698 were negative resulting in an impressive rating of 9.4 out of 10. With 373 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Alien Shooter TD.
9.4
19,846
698
373
players
8. Paint the Town Red
Similarity 51% Paint the Town Red is a chaotic first person melee combat game set in different locations and time periods. The voxel-based enemies can be punched, bashed, kicked, stabbed and sliced completely dynamically using almost anything that isn't nailed down. Paint the Town Red is a gore, blood and action game developed and published by South East Games. Released on July 29th 2021 has received 29,576 reviews of which 28,358 were positive and 1,218 were negative resulting in an impressive rating of 9.4 out of 10. With 296 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Alien Shooter TD.
9.4
28,358
1,218
296
players
9. Wolfenstein II: The New Colossus
Similarity 45% America, 1961. The assassination of Nazi General Deathshead was a short-lived victory. The Nazis maintain their stranglehold on the world. You are BJ Blazkowicz, aka “Terror-Billy,” member of the Resistance, scourge of the Nazi empire, and humanity’s last hope for liberty. Wolfenstein II: The New Colossus is a fps, action and gore game developed by Machine Games and published by Bethesda Softworks. Released on October 26th 2017 has received 44,497 reviews of which 36,084 were positive and 8,413 were negative resulting in a rating of 8.0 out of 10. With 290 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Alien Shooter TD.
8.0
36,084
8,413
290
players
10. Aliens: Dark Descent
Similarity 50% 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. Aliens: Dark Descent is a strategy, action and tactical game developed by Tindalos Interactive and published by Focus Entertainment. Released on June 19th 2023 has received 15,650 reviews of which 13,803 were positive and 1,847 were negative resulting in a rating of 8.6 out of 10. With 276 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Alien Shooter TD.
8.6
13,803
1,847
276
players
Best deals on games like Alien Shooter TD on Steam
Discover fantastic savings with the best discounts on a variety of games like Alien Shooter TD available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Alien Shooter TD.
1. Valfaris: Mecha Therion
Similarity 50% Therion returns as the hunt for Lord Vroll continues. Pilot an advanced machine of death and destruction in this explosive 2.5D side-scrolling shoot ‘em up, and sequel to the critically acclaimed Valfaris. Strap in and unleash mecha hell! Valfaris: Mecha Therion is a action, shoot 'em up and arcade game developed by Steel Mantis and published by Silver Lining Interactive. Released on November 21st 2023 has received 358 reviews of which 331 were positive and 27 were negative resulting in a rating of 8.5 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Alien Shooter TD.
8.5
331
27
-99%
24.50€
0.45€
2. Viscera Cleanup Detail: Shadow Warrior
Similarity 41% After the battle is over, someone has to cleanup the mess! Introducing Viscera Cleanup Detail: Shadow Warrior from RuneStorm, a unique crossover mini-game that combines the worlds of Viscera Cleanup Detail and Shadow Warrior. Viscera Cleanup Detail: Shadow Warrior is a simulation, gore and first-person game developed by RuneStorm and published by Devolver Digital. Released on October 11th 2013 has received 4,434 reviews of which 3,572 were positive and 862 were negative resulting in a rating of 7.8 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Alien Shooter TD.
7.8
3,572
862
-99%
305.00€
3.05€
3. HERO DEFENSE
Similarity 55% CREEPS CRUMBLE. HEROES RISE. Command a team of renegade heroes and impale, slash, tear and burn through legions of undead hell-bent on world domination. Your mission: to defeat the world’s most powerful vampire, Count Necrosis. HERO DEFENSE is a tower defense, strategy and indie game developed by Happy Tuesday and published by Headup. Released on May 31st 2016 has received 747 reviews of which 471 were positive and 276 were negative resulting in a rating of 6.1 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like Alien Shooter TD.
6.1
471
276
-99%
29.99€
0.56€
4. X-Morph: Defense
Similarity 67% 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. X-Morph: Defense is a tower defense, strategy and action game developed by and published by Exor Studios. Released on August 30th 2017 has received 3,823 reviews of which 3,506 were positive and 317 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like Alien Shooter TD.
8.8
3,506
317
-98%
19.99€
0.54€
5. Battlezone 98 Redux
Similarity 42% One of the greatest sci-fi strategy games of all time returns with remastered visuals, online multiplayer and near unlimited mod content from Steam Workshop. Experience thrilling first person action and acclaimed RTS in this explosive alternate vision of the 1960s space race. Battlezone 98 Redux is a strategy, action and first-person game developed by Big Boat Interactive and published by Rebellion. Released on April 18th 2016 has received 1,064 reviews of which 975 were positive and 89 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Alien Shooter TD.
8.7
975
89
-98%
19.99€
0.58€
6. Serial Cleaner
Similarity 43% Slip on your flares, grab your shades and hop in your station wagon, it's time to work… as a professional mob cleaner. In this stylish award winning 2D action-stealth game you have to make sure you get in, clean up and get out without leaving a trace - Queue the funky 70s inspired soundtrack! Serial Cleaner is a stealth, action and indie game developed by Draw Distance and published by Curve Games. Released on July 14th 2017 has received 3,770 reviews of which 3,244 were positive and 526 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Alien Shooter TD.
8.3
3,244
526
-98%
14.99€
0.42€
7. DG2: Defense Grid 2
Similarity 51% Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges. DG2: Defense Grid 2 is a strategy, tower defense and indie game developed by Hidden Path Entertainment and published by Hidden Path Entertainment and 505 Games. Released on September 23rd 2014 has received 3,163 reviews of which 2,723 were positive and 440 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Alien Shooter TD.
8.3
2,723
440
-98%
12.49€
0.26€
8. Go Home Dinosaurs!
Similarity 42% Todd Rex wants steak. Todd Rex wants YOUR steak. Are you gonna let him take it? No way! Go Home, Dinosaurs!Prevent hordes of marauding Dinos from crashing your party in the world’s premier BBQ defense simulator! Unlock powerful towers that act like little weaponized puzzle pieces. Go Home Dinosaurs! is a tower defense, casual and strategy game developed and published by Fire Hose Games. Released on March 14th 2013 has received 600 reviews of which 524 were positive and 76 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Alien Shooter TD.
8.2
524
76
-98%
9.75€
0.29€
9. Serious Sam VR: The Last Hope
Similarity 54% Serious Sam is back! And this time it's REAL! Serious Sam VR: The Last Hope is a vr, action and gore game developed by Croteam VR and published by Devolver Digital and Croteam. Released on September 20th 2017 has received 1,395 reviews of which 1,180 were positive and 215 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Alien Shooter TD.
8.1
1,180
215
-98%
28.99€
0.58€
10. Deathtrap
Similarity 53% Deathtrap is a Tower Defense game with strong action-RPG elements, a game of vicious tricks, killing machines, rotating blades and splattering blood. Deathtrap is a tower defense, rpg and action game developed and published by NeocoreGames. Released on February 04th 2015 has received 2,194 reviews of which 1,842 were positive and 352 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Alien Shooter TD.
8.1
1,842
352
-98%
19.99€
0.49€
Free games like Alien Shooter TD on Steam
Check out this fantastic list of free-to-play games like Alien Shooter TD you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Alien Shooter TD.
1. Bloons TD Battles 2
Similarity 42% From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 32,320 reviews of which 27,193 were positive and 5,127 were negative resulting in a rating of 8.3 out of 10. With 535 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Alien Shooter TD.
8.3
27,193
5,127
535
players
2. The Perfect Tower II
Similarity 47% The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,639 reviews of which 3,201 were positive and 438 were negative resulting in a rating of 8.5 out of 10. Thanks to its free to play tag and a daily player base of 491, this game has secured the #2 spot in the ranking of free games like Alien Shooter TD.
8.5
3,201
438
491
players
3. Bloons Monkey City
Similarity 50% Create, upgrade, and customize your very own Bloons Monkey City in this groundbreaking blend of city building and tower defense awesomeness! Bloons Monkey City is a free to play, strategy and action game developed and published by Ninja Kiwi. Released on April 10th 2020 has received 6,222 reviews of which 5,676 were positive and 546 were negative resulting in a rating of 8.8 out of 10. Thanks to its free to play tag and a daily player base of 217, this game has secured the #3 spot in the ranking of free games like Alien Shooter TD.
8.8
5,676
546
217
players
4. Bloons TD Battles
Similarity 43% Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses. Bloons TD Battles is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on April 20th 2016 has received 29,096 reviews of which 26,414 were positive and 2,682 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 215 players due to its free access, this strategy game has achieved the #4 position in the best free games like Alien Shooter TD.
8.9
26,414
2,682
215
players
5. Bloons Adventure Time TD
Similarity 57% Defend Ooo from the Bloon invasion in this epic tower defense crossover. Bloons Adventure Time TD is a strategy, action and tower defense game developed and published by Ninja Kiwi. Released on January 16th 2019 has received 4,302 reviews of which 3,743 were positive and 559 were negative resulting in a rating of 8.4 out of 10. Attracting a solid base of 101 players due to its free access, this strategy game has achieved the #5 position in the best free games like Alien Shooter TD.
8.4
3,743
559
101
players
6. Ninja Kiwi Archive
Similarity 44% Enjoy some of the best loved Flash games of the past in this awesome time capsule of over 60 Ninja Kiwi classics. Experience a piece of history and play the original Flash games that spawned the worldwide phenomenon of Bloons TD. Ninja Kiwi Archive is a casual, arcade and strategy game developed and published by Ninja Kiwi. Released on July 08th 2020 has received 5,439 reviews of which 5,107 were positive and 332 were negative resulting in an impressive rating of 9.1 out of 10. The game currently holds the #6 spot among the most played free games like Alien Shooter TD.
9.1
5,107
332
89
players
7. Combat Arms: the Classic
Similarity 43% Combat Arms: the Classic is a multiplayer game, free-to-play modern first-person shooter. The game is a relaunch of Combat Arms in its glory days delivering gamers a nostalgic high-quality FPS with an extensive arsenal of weapons. Combat Arms: the Classic is a free to play, action and fps game developed by VALOFE and NEXON and published by VALOFE. Released on July 14th 2020 has received 1,927 reviews of which 1,247 were positive and 680 were negative resulting in a rating of 6.3 out of 10. The game currently holds the #7 spot among the most played free games like Alien Shooter TD.
6.3
1,247
680
79
players
8. Royal Revolt II
Similarity 44% Royal Revolt 2 is an asynchronous PvP Reverse Tower Defense game full of medieval magic and action-laden battles.Can you set up your defenses so other Kings and Queens can't crash your castle gates? We're throwing down the gauntlet. Will you pick it up? Royal Revolt II is a action rpg, tower defense and strategy game developed and published by Flaregames. Released on May 19th 2021 has received 324 reviews of which 246 were positive and 78 were negative resulting in a rating of 7.1 out of 10. The game currently holds the #8 spot among the most played free games like Alien Shooter TD.
7.1
246
78
47
players
9. Zombie Defense
Similarity 49% 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. Zombie Defense is a free to play, zombies and tower defense game developed and published by Home Net Games. Released on September 30th 2016 has received 2,157 reviews of which 1,811 were positive and 346 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #9 spot among the most played free games like Alien Shooter TD.
8.1
1,811
346
13
players
10. RED HOT VENGEANCE
Similarity 46% He had one rule: No killing women or children. When a hitman is double-crossed by his employer, he brings forth a night of carnage and bloodshed. RED HOT VENGEANCE is a free to play, violent and gore game developed and published by Bros Before Giraffes. Released on July 11th 2019 has received 3,428 reviews of which 3,291 were positive and 137 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #10 spot among the most played free games like Alien Shooter TD.
9.2
3,291
137
9
players