Top similar games like Us Against Aliens:

Play the classic STAR WARS™ Battlefront games, online and offline in this definitive collection.

"Heroes Stand Tall: M.E.T.A" thrusts you into the heart of the immersive Digiverse. In the HST Arena, players engage in intense PvP deathmatches, wielding diverse weapons as Heroes. Victory requires strategic prowess and precise aim. Embrace the M.E.T.A, Be A Hero and Stand Tall.

A frantic third-person Team Deathmatch arena shooter. Flank your enemies using hidden teleporters, tunnels, and floating islands. First team to 30 takes the glory. Get your loadout ready, engage in intense matches, and conquer the stars!

Space bounty hunter Falco must explore the solar system in search of his ex-girlfriend and destroy the Black Star cult. Collect bounties, upgrade your equipment, explore planets, crack wise & fight aliens in this GZDoom-powered Retro-FPS adventure.

Choose between battle royale, deathmatch, infected and free roam mode and play with your friends as some of the main Big Lez Show characters! Use each characters specific special ability to assist you during combat and create your preferred weapon loadout to play optimally. Beware of the Choomahs!

Dive into Rise of the Vanguard! Team up with up to 7 players in thrilling PvE missions, where every challenge is unique thanks to our Dynamic Mission Generation system. Choose your class, battle fierce foes, and join scheduled playtests now! Are you ready to rise?

Blast through 28 levels in this FPS inspired by classic retro games. Levels span across 3 game modes ending with unique epic boss battles to test your skills. Find hidden medals, discover hidden objectives, and level up your character all while trying to survive an onslaught of nostalgic foes.

A 3-10 player space station scavenging social deduction game. Will you be able to meet quota with your team? Or will you do everything in your power to sabotage them as the traitor?

Sci fi survival multiplayer based game, this game will be an ongoing development.

Aiming is uneasy, movements are slow, resources are hard to earn. Stop farming infinite vegetables, try to acquire some more jigowatts in empty space, where no one can hear your scream. Moon is a harsh mistress.

Space Pirate Captain McCallery has Crash Landed on an alien planet! Explore a strange and hostile alien world in this Low-Poly 3D Action-Adventure game.

In Vertig8, explore a vertical world unlike any other. Ascend through a skyscraper, engaging in strategic gameplay and exhilarating action. Join internet celebrities in this unique multiplayer experience. Experience Vertigo and redefine your gaming adventure.

Explore a city thrust into disarray by an unknown event and survive the hordes of mutated abominations that lurk at every corner. You’ll have to fight through enemies & bosses, scavenge loot and survive the hostile city.

Freeman: The Resistance - is a single-player sci-fi adventure that seamlessly blends spaceship combat and planetary exploration. Unravel the mysteries of a richly crafted open world. Engage in thrilling battles, gather valuable loot and RPG elements to enhance your journey.

SIK - Space Invader Kreature is a multiplayer shooter, a frantic experience of eliminating the hordes of invaders. Rush through the Wayans, unlock paths, create a strategy with your online friends and defeat all the invader kreatures.

Ravage immerses you in a post-apocalyptic world overrun by zombies. Survive by battling hunger, thirst, and enemies. Build and fortify bases, raid for resources, engage in intense PvP, and join clans. Experience immersive realism. Are you ready to face the challenge?

GREEN HAWK PLATOON is an action-packed, single-player & multi-player FPS that immerses you in the world's smallest army! Pick your favorite class & team up with other plastic toy soldiers to wage war for control of the kitchen, bedroom or back yard!

Steamcore is a MMO PvPvE shooter where players capture resources, battling robots and other players to survive. It's the first game to use the ECHELON system, which lets players compete to be a game's featured streamer on Twitch. Climb the leaderboard, and your viewer count on Twitch climbs with it.

Finders Reapers is an inventive third-person shooter. Experience items raining from the sky, collect them, sell them and discover a whole new concept where cash is ammo.Take on missions, fight it out online or battle against bots in custom skirmish mode.It’s time to prove you’re the best.

Tank, action and shooting game, where does it start your new adventure in a world of science fiction and interplanetary wars...

Travel through the galaxy and beat space demons to a bloody pulp in this intense first-person boomer shooter! Use a variety of weapons and powerful drinks created for one purpose only – to bring destruction and lots of blood.

The Terran colonies on Proxima C5 have been atttacked by hostile aliens! Dive into a new and exciting Sci-Fi First Person Shooter! Blast through hordes of aliens in the singleplayer or co-op campaign. Battle online in PvP matches. Defeat the Gacrux invaders and lead the Assault on Proxima!

A totally free reimagining of the classic Jetpac in a sandbox world with All Vs All or Team Match with unique real-time terraforming played over the surface of a planetoid created exclusively to test key components for the upcoming Me Igigu.

Fight off waves of zombies in this single-player third-person and first-person shooter game. Battle of Rebels plays to your strengths and gives you the freedom to do more and be more while carving your own path to victory.

Former FBI agent and fishing enthusiast, faces an alien-zombie apocalypse after a virus escapes from NASA. Determined to rescue his wife, he defies the FBI and embarks alone to confront the threat. An epic rescue mission filled with action and suspense!