Top similar games like Alien Task Force:
Alien Task Force $0.99
A Sci-fi wave-based game with a variety of weapons and bosses every 10 waves. Also has a shop after every wave with health, ammo and upgrades. WASD movement and keys 1 for Blaster and 2 for Rifle.
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Warden's Will$14.99
Warden’s Will is a fast paced movement shooter roguelite, playable solo or in up-to 3 player co-op. Choose your Warden, master unique movements and abilities, and overpower hordes of robots in intense battles. Fly, dash, smash, and turn bullet-hell into bullet-heaven!

Clan N$14.99
Fight alone or with your friends, master the art of battle and bring peace back to the land in this arcade inspired epic brawler!

The Black Pool$19.99
In the forest outside of town, four friends discover a mysterious black pool that transports them to an unknown world. To fight their way home, they must unlock and master supernatural abilities. Play cooperative or solo in this high-paced action game of skill that varies each session.

Space Star - Heart of a Soldier$5.99
A Sci-Fi Space Shooter RPG game with a small story. Get into ship and fly through space to learn what happened to your best friend. Destroy enemies and collect minerals to earn coin.

ZAMB! Endless Extermination$2.99
ZAMB! Endless Extermination is a mash-up of a twin stick shooter and a tower defence game. Play in local co-op or online with a friend, sibling or partner as two space agents, Cye (the brawler) and Chrome (the tactician).

PARTICLE MACE$4.99
A space game about swinging trash into things and dying.

Wilderness: Survival$4.99
Wilderness: Survival is a single or multiplayer survival game. It is a pirate-like game where you can hunt, mine,fightning ,farming,gun crafting,fishing, fight skeletons and evolve. Duel with your friends etc. You can do. The game is still under development, please give constructive criticism.

Vrtigo$4.99
Vrtigo is a game where the skyscraper is the main map.

AXIOM SOCCERFREE
Axiom Soccer is a high speed evolution of vehicular soccer combining fast-paced driving with tactical shooting mechanics for a new soccer experience. Inspired by real world ball games, go it alone or team up with friends and blast through divisions to pursue Axiom Soccer championship glory.

Cyberpoly$12.99
Cyberpoly is an open-world, third person shooter, and RPG set in the Dark City — a dangerous city dominated by money, crimes, and illegal trades. You play as a mercenary who takes missions, works in secondary jobs, builds prestige, and unlock upgrades.

Xheres$11.99
Either FPS or TPS, choose your play style and survive the apocalypse on your own or with your friends. But one must know for sure it ain't gonna be easy, there are hordes waiting for you. Not even considering tough ones... Nevertheless it's gonna be fun.

Cyber Complex$9.99
Cyber Complex is a unique mix of Action, Strategy and Arcade elements in a 60s-style Sci-Fi setting.

Fortified$14.99
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.

Scrap Mechanic$19.99
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!

Cyborg3003$16.99
6-player co-op survival horror at its finest! Cyborg, monsters and aliens. Free updates

Beyond Hope$5.99
Beyond Hope gives you and your friends one epic space journey! Your mission alone or with friends is to save yourself from getting pulled into the hot Sun. Gather debris, scavenge asteroids and build your own space station. Reach for the stars and survive when all odds are against you!

Skyward Extraction$9.99
A light horror roguelike adventure through a post apocalyptic world, with airships.

I Want To Go Home$9.99
I Want To Go Home is a first-person cleaning simulator game with a horror twist. Clean the restaurant and survive to earn money and unlock characters. Play solo or with up to 3 friends and experience the story that unfolds. All content updates will be free!

From Space$14.99
From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun!

Mizz Survival$4.99
Mizz Survival is a Survival game. Crafting & Building . Adventure with friends on the island and catch monsters and evolution to ride or help fight or fight with other teams and experience the horrors of the night

Nature's Zombie Apocalypse$12.99
Animals are the heroes in this hilariously quirky zombie shooter. Elephants with miniguns and sloths with flamethrowers are just a few of the crazy combinations available to take on the undead. Gaming with your friends has never been so much fun!

Sword Mans$9.99
Sword Mans is a physics based sword fighting brawler where you control the sword instead of the swordsman.

Village of Zombies$6.99
In Village of Zombies you can fight against zombies and mutants together with other players or alone on different maps, the goal is to survive as many levels as possible. The game always starts at level 1 and with each level increase, more zombies and stronger zombies come.

RWBY: Grimm Eclipse$19.99
RWBY: GRIMM ECLIPSE is a 4 player, online co-op, hack and slash game based upon Rooster Teeth’s international hit series RWBY.

Mobmania$4.99
Mobmania is a four (4) player co-op real-time bullet-hell action rogue-like where you kill enemies, buy items after leveling up, and survive long enough against thousands of monsters and bosses until the final fight against the Witch.

Freaky Awesome$9.99
Freaky Awesome is a hectic action rogue-lite. You explore a randomly generated old factory, fighting weird monsters and avoiding traps. Toxic wastes will make you mutate, gaining different powers every time. You will need to adapt to your mutations to survive!

The Limb$3.99
In a post-apocalyptic world overrun by monsters due to an unknown virus, some people have managed to survive. During these times, an organization formed by elite members of society emerged, fighting against the monsters and aiming to restore the world to its original state.

Trash is Fun$5.99
Embark on an unforgettable journey with your friends around the world in an eco-friendly adventure made specifically for a group of up to 4 people. After the apocalypse due to global warming, the characters realized that in order to survive, they would have to gather in a team and recycle garbage.

Escape the Backrooms$9.99
Escape the Backrooms is a 1-4 player co-op horror exploration game. Traverse through eerie backrooms levels while avoiding entities and other danger to try and escape. Free content updates with new levels and game modes keep the community rewarded.

Robo Revenge Squad$19.99
Robo Revenge Squad is a co-op action game for 1-4 players, where everything is a weapon. Fight alien robots using Robos made of everyday objects: fridges, disco balls, baseball bats, and more!

SurrounDead$11.99
SurrounDead is an open world survival game. Taking place in a world ravaged by an apocalyptic catastrophe. The dead reign free and will stop at nothing to kill you.

Rusty Coffin$7.99
A co-op game about exploring dangerous planets with your teammates, collecting and selling scrap metal to survive from the corporation. Assemble your own robot to help your team in your own way. Never be a “rusty coffin”.

Fragmented$9.99
Stranded in a hostile alien world, you must fight to survive. Hunt, harvest, craft, advance skills, and build using local resources along with technology from your voyage.

Recursive Hate - Spider HellFREE
Try to survive in Spider Hell. Fight with big, realistic and terrifying spiders and versus swarms with literally thousands of spiders.

ToBas Zombies$1.99
Multiplayer/Singleplayer shooter in low-poly style. NPCs sell weapons, perks, and health packs. Different zombies, handmade maps, unlockable barriers, 34 weapons. Zombies spawn endlessly. And more!

Bombardier$6.99
Bombardier is a quick and chaotic multiplayer game which supports up to 4 players in an arena. Use the environment and bombs to your advantage and battle to be crowned the ultimate Bombardier!

Miracle Heroes: Temporal Bounty Hunter$6.99
Miracle Heroes is a multiplayer light rogue-like game. In the game, players must choose suitable combinations from a rich arsenal of weapons and items, with each playthrough offering a fresh experience.

Too Many Zombies!$9.99
Survive the zombie world with your colleague. It's pretty simple. Shoot, build and craft. That's it! The most important thing to survive is cooperation. Probably.

Rise:30 Minutes to Extinction$0.99
A fast paced third person shooter. Race against the clock alone or with friends across multiple maps and game modes to defeat the alien horde and save the planet!

Congo$4.99
Grab some friends and dive into the jungles of CONGO - an online and local co-op, horror action game. Set in the dark and haunting jungle, light-fearing demons attack from the shadows. Work together as a team to find rescue from wave after wave of intense attack by scavenging an array of weapons and items.

Project Terminus VR$19.99
Project TERMINUS is a VR game that offers a very gripping horror experience that goes beyond a simple jump scare, It offers many elements taken from classic survival experiences, set in post-apocalyptic Paris and roots it in an engaging story-driven campaign that can be played solo or with friends.

Storm's Eye$9.99
As a Runner, master your environment and claw your way through the endless stream of corrupted monsters chasing you. Gear yourself up on the drops of your adversaries, recycle or upgrade it, and complete objective to move forward. But beware of the Storm !

Zombi Efem$7.99
Join the battle for survival against zombies with "Zombi Efem"! Play solo or online with up to four players in both TPS and FPS modes. This horror survival game invites you to face challenging combats and thrilling moments. Plan your strategy, prepare your weapons, and fight to survive!

Go Fight Fantastic$14.99
Bird Planet is under attack! Team up in co-op (local and online) or fight the invaders solo in this fast-paced, light-hearted and vibrantly hand-drawn hack n’ slash for 1-3 players.

They Can't Stop All Of UsFREE
D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.

Unrailed!$19.99
Unrailed! is a co-op multiplayer game where you have to work together with your friends to build a train track across endless procedurally generated worlds. Master random encounters with its inhabitants, upgrade your train and keep it from derailing!

Digipunks 2069$0.99
Digipunks 2069 - You and Your friends must battle the company and evil bots for control of Digitopia. (Single Player OR Multiplayer {PvP OR CO-OP})

Hungry Zombies$4.99
Hungry Zombies is a defense of the city, 2D graphics with a side view, colorful and beautiful graphics and unforgettable experiences.

Battle Bears 1: Zombies$2.99
The very first Battle Bears game ever now on PC! Relive the Huggables, Campy Weapons, Crazy Bosses and Funny Cutscenes. Your childhood nostalgia is back in full force!

Retimed$14.99
Dash and dodge bullet clusters in nerve-wracking slow motion moments and challenge your friends online or offline to awesome and fast paced battles with up to 4 players!

The Haunted: Hells Reach$8.99
Winner of 2010′s Make Something Unreal contest, The Haunted: Hells Reach is a fast-paced horror game where your goal is to liberate cursed places and survive the assault of Hell.