Top similar games like Gastro Force:

Lock and load into the Starship Troopers universe and join the Mobile Infantry in the most realistic depiction of war ever made! Experience an original story in this action-packed, first-person retro shooter. Would you like to know more?

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.

This HEART-POUNDING WAVE-BASED ARENA SHOOTER catapults you into an alien-infested space station. SHOOT, SHRED, and SURVIVE as you crush enemy hordes, dodge chaos, and challenge yourself to set a new record. The battle escalates with every second—GET IN THERE and FIGHT!

Supplice is a stylish throwback shooter inspired by the mid-90s FPS glory days and the legendary Doom modding community. Mixing the retro stylings of 90s era shooters with colorful graphics and frantic gameplay, it creates an experience that's ever so familiar but also exciting and fresh.

Klostyn is a sci-fi shooter that stays true to the late-'90s FPS style. The protagonist fights alien creatures and space pirates on a distant planet.

Interlopers is a solo-developed FPS inspired by retro classics. Wield big guns, shoot hordes of enemy robots, and explore hand-crafted levels set on multiple alien worlds.

In the future, humans conquered the stars and colonized other planets. In the bowels of the icy planet, scientists have discovered a natural and safe source of energy. But at the same time, they awakened an ancient alien life form. There is a conflict on the planet. Volunteers come to the rescue.

A submerged post-apocalyptic retro-style FPS set in a world swallowed by the ocean after a human/AI war. Blast through flooded facilities, battle corrupted machines, explore radioactive ruins, and uncover the last buried secrets of humanity’s collapse.

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

SPRAWL is a hardcore retro FPS set in an endless cyberpunk megalopolis. Escape the walled city and take on the militarized government of the sprawl. Fueled by the blood of your enemies and a mysterious voice in your head, make your way towards the spire to topple whatever lays within.

Planet DOS is under attack by Space Aliens, DOSMan needs to fend them off and defend his home planet!

A sci-fi VR gallery shooter where you and your mech battle through hostile alien territory. Upgrade your drone choosing between human‑engineered firepower or drone‑targeting tech. Strengthen your arsenal with remote recon runs and mech repairs as you push deeper into the planet’s contested frontier.

A retro-style FPS where a kidnapped engineer must fight through a futuristic military base filled with deadly enemies, hidden secrets, and relentless action. Arm yourself, move fast, and survive!

Jungle rot. Space horror. Pirate nightmares. Rip through three warped worlds of monsters, mutants and mayhem with an arsenal of spells and dozens of guns - from anchor launchers to chain spears to akimbo M60’s - in this new, standalone game featuring Warlock.

Rogue Planet is a roguelite first-person shooter set on Earth, which has been destroyed by a cybernetic crisis. Build your character using unique items, weapons, and active skills to defeat all enemies

BERSERKER'S DOMAIN is a stupid, super fast little FPS with roguelike elements. Inspired by Quake, Doom, ULTRAKILL, and Blood. No load screens, tutorials or menus - just click Play and you're shooting stuff in 5 seconds. Quick play sessions and randomized runs for endless mindless fun.

Dead Relay is a first-person retro survival horror game inspired by PSX-era classics. Explore a sealed communication facility, restore power, solve environmental puzzles, manage limited resources, and uncover why the missing technician is still answering the phone.

Venture deep into enemy territory and become an ambassador of justice! Enemy Territory Terrorists Takedown is an immersive FPS experience that puts you in the shoes of a brave soldier tasked with saving civilians from brutal terrorists.

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.

Mind the Abyss is a fast-paced movement shooter that combines fourth-dimensional abilities and ever-evolving weaponry within an alien planet.

Would you like to do some... EXTREMELY SATISFYING ZOMBIE-ALIEN PIMPLE POPPING WITH AWESOME RETRO GUNS WHILE TRYING TO NOT FALL OFF A METEOR FLYING THRU SPACE? Good, then ZSG is you're one and only choice.

Core Alpha is an arcade first-person shooter, which is made in the best traditions of old-school shooters. Fight and defeat hordes of zombies, as well as destroy infected cores to fight the main enemy.

Viscerafest is a Sci-Fi Fantasy Singleplayer Arena FPS with minor Collectathon elements. Fight through hordes of aliens and eldritch monstrosities wielding a slew of powerful weapons, juggling your resources, and exploring over 23 intricately designed hand-crafted levels.

A retro and very cool fps game, blood-curdling fast-paced combat, high mobility displacement, adrenaline-pumping plasma effects, all in the most intuitive way to experience the aesthetics of violence!