Single-player games like Gastro Force
Below are 12 single-player Steam games similar to Gastro Force, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Gastro Force page.
Ranked picks
- 1
Gates of Zendocon
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action with Gastro Force.
In this classic side-scrolling shoot-em-up, originally published in 1989 for the Atari Lynx handheld console, take on the role of a starship pilot trapped in a web of 51 interconnected hostile universes by the evil spider Zendocon.
- 2
Space Dragons
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Choose your spaceship and defeat the alien threat that comes from the Moon. Blast your way crushing, ripping apart and exploding hostile aliens that are taking control of powerful weapons and military technology from Earth. Find the entity that controls the threat and make it explode into blood.
- 3
Stellar Valkyrie
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
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.
- 4
STAR WARS™: Battlefront Classic Collection
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action with Gastro Force.
Play the classic STAR WARS™ Battlefront games, online and offline in this definitive collection.
- 5
SOL CRESTA
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
SOL CRESTA, rise like the phoenix and take back the sun! Neo-Classic shooting strikes back! Dock, split, and form up! Pilot 3 fighters and take back the sun from the clutches of evil in this free-form shooting game with the spirit of 80s shooting classics Moon Cresta and Terra Cresta.
- 6
High On Life 2
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Adventure with Gastro Force.
An intergalactic conspiracy threatens the fate of humanity! Team up with a wide cast of talking alien guns as you shoot, stab, and skate your way through the exotic locales to take down the bad guys and save your favorite species (humans)!
- 7
Dead Space™ 2
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Adventure with Gastro Force.
Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.
- 8
Crysis 2 - Maximum Edition
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action with Gastro Force.
Aliens are decimating New York City, only you have the technology to survive. Be The Weapon.
- 9
Mekabolt
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Use your trusty Mekabolt device to manipulate robots, solve a variety of puzzling levels and obtain batteries to fix the robots!
- 10
Random Heroes: Gold Edition
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Random Heroes is an action-packed 2D side-scroller platformer. Blast through this action-adventure hero shooter inspired by classic retro games, and stop an alien invasion by teaming up with a bunch of, Random Heroes.
- 11
Loopindex
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Test your wits on the unique “loop mechanic” with single player or co-op multiplayer.
- 12
Super Brawl Rush
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Super Brawl Rush is a boss rush beat'em up set in the scorched post-apocalyptic lands of the near future. Choose your champion and fight your way between swarms of bloodthirsty thugs, mutants and cultists.