Games like Kill Invaders

Us Against Aliens is a survival shooter game on a spaceship that flies towards Earth. On the ship, something is constantly happening and you need to solve these problems along the way by shooting back from aliens who are constantly hunting you

Use Nukes, Electricity, Heat Rays and powerful Minions in this wave-based first person shooter providing endless hours of Ghost-slaying entertainment, solo or Co-Op. Only Ghosts stand in the way of your invasion of Earth.

You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.

Break through unlimited waves of enemies and fight unpredictable bosses!

Drop into massive, alien-built arenas and begin the frantic search for weapons and gear - all while trying to stay one step ahead of the advancing plasma field… or the sights of other contenders. ION offers its players a skill-driven, first-person-only Battle Royale all built into a unique sci-fi universe.

X Invader is an action roguelite where you hack into big corporations' servers. Use add-ons from fellow hackers to defeat monsters. Powerful, cute bosses guard these servers!

A Third Person Shooter Game where you have to infiltrate the enemy lines and complete the mission.

Destroy, smash and blast your way to victory. Use advanced weapons and vehicles to dominate the battlefield.

Jump into the action and battle your way through hordes of aliens from deserts to tropical islands with fully destructible environments !

Free to play shooter about the confrontation of two irreconcilable sides, represented by the government military housings and the armed hirelings. Try your hand at virtual battles with off-scale dynamics and hurricane gameplay in the spirit of the classical shooters.

KEO is a team-based online multiplayer vehicle combat game set in a sci-fi post-apocalyptic world. Build your loadout to suit your playstyle and balance your team to dominate the battlefield using futuristic remote controlled vehicles!

A First Person Shooter Gun Ballet set in a cutesy abstract world. Jump and shoot your way through five worlds full of treacherous enemies with your trusty semi-automatic!

A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.

A retro mashup of a Galaga-style shoot-em-up and simple platforming action. Made in collaboration with Eisner-award-winning James Kochalka, based on his graphic novel series for kids.

Prepare for one of the most action packed-shooters in PC gaming history! Every level is full of enemies and targets for you to destroy! You will become a soldier of the alien species and protect your home world from the forces of the Human armada.

They came without warning, squawking menacingly, their ruffled feathers darkening the sun. Invading intergalactic chickens, out to punish humanity for our oppression of their earthly brethren. Now they're back, and they're having Earth for dinner!

Head Shot is a Cartoon FPS Game. There are 5 perks of character and too many weapons ...

It's the future! And humanity is, predictably, under attack by extraterrestrial forces. Lucky for us we have an experimental ship that's never before been flown that will surely...uh, possibly...well, implausibly be able to win the war! All we need now is a pilot or two.