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

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!

Alien Shooter 2: Reloaded
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.

Super Sanctum TD
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!
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
"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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
This is Sci-fi Tower Defense created by gamers for gamers.
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%
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%
"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%
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%
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%
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%
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%
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%
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%
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%
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%
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%