Top similar games like SPACE DUDES vs ALIEN DUDES:

Biomass: Extermination is a psychological sci-fi FPS where distorted perception turns humans into monstrous enemies in a collapsing post-apocalyptic world.

Originally planned as a section of the Highway 17 chapter of Half-Life 2, Lost Coast is a playable technology showcase that introduces High Dynamic Range lighting to the Source engine.

Aliens are decimating New York City, only you have the technology to survive. Be The Weapon.

Travel to the remote planet of Bazoik to free galactic citizens from the evil cereal-eating Flemoids! Venture deep into the caverns of Bazoik, using an array of "zorching" devices to send these nefarious foes back to their home dimension!

Pick a class, choose your gun, and dive right in, Ballistic Overkill has no barrier between you and immediate run and gun action. Designed from the outset to be 'pick up and play', Ballistic Overkill is for you regardless of your level of FPS experience.

Start your journey as Cyrus to find your sister, Ava in Spring. The first game of The Seasons Collection involves brilliant FPS gameplay with a beautiful story to remember. All you will have is a rifle, a shotgun and limitless enemies as you start discovering the mystery of the forest.

Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.

Galactic Force is a sci-fi FPS loaded with frantic action and lots of firepower.

‘Gemini: Binary Conflict’ is a multiplayer, class based, first person shooter set in the midst of an interplanetary war. The game features a colourful visual style, unconventional weaponry, equipment, armour, class roles and modes, to provide a subtle mix of familiar and unusual game mechanics.

Own the skies in steam-powered airships! Guns of Icarus Alliance is a team-based online game that pits co-op crews against both rival teams and an AI that learns your tactics. Players become part of the story as each battle shapes history in an ever-changing steampunk world.

Eternal Vortex Is A Online Multiplayer Shooter Where The Players Start Off With Basic Weapons, But To Become More Powerful You Have To Run Around The Map And Find A Better Weapon.

This game invites you to an action-packed adventure. What could you sacrifice to save a military base captured by aliens from aliens?

SUPERHOT is the smash-hit FPS where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's you, alone, outnumbered and outgunned. Snatch weapons from fallen enemies to shoot, slice and dodge through a truly cinematic hurricane of slow-motion bullets.

Adapt to Survive — An epic story thrusts players into an ever-changing environment, forcing them to adapt their tactics and approach to conquer battlefields ranging from newly frozen jungle to zero-gravity alien environments. Suit up! — A high-tech Nanosuit allows gamers to augment their abilities in real time on the battlefield.

Oblivity is an advanced aim training software that provides everything you need to improve your aim! Find your perfect, intuitive mouse sensitivity with Oblivity's sensitivity finder. Or detect your bad aiming habits in the extensive analysis and replay space.

The player takes the role of the last soldier of the highly specialized "Gastro Force", elite troopers trained to infiltrate the enormous alien guts to fight them from the inside!

Play as an Elite Agent of SRF the System Restore Force, with the sole purpose of purging the Virus and it's corruption, climb through the different layers of the Source code and uncover it's mysteries, defeat bosses, and find the Master of the infection, allowing you to RESTORE THE SYSTEM!

"Siege of Shadows" is an intense tower defense survival game where strategy, skill, and quick thinking are your keys to victory. In a world overrun by relentless waves of enemies, your mission is to build, upgrade, and defend your base at all costs.

Be the cactus, become the legend! Master foes, evade traps, and uncover artifacts as a spiky hero in this unique indie FPS, blending classic elements with quirky new ideas.

Heavy Bullets is a randomized FPS dungeon crawler where players make their way through a colorful maze, while protecting themselves from aggressive creatures and malfunctioning security devices. The goal lies at the end of the 8th level, where they must reset the security mainframe to restore order and reap the rewards.

Welcome Human-V1399 to the "Human Restoration Program," the final hope for the rebirth of mankind. In this physics-based movement shooter, use telekinetic powers to defeat hostile alien-built creatures through the depths of an irradiated planet in a conflict-ridden solar system.