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
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.
- 3
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.
- 4
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.
- 5
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)!
- 6
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.
- 7
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.
- 8
Project Warlock
Single-player alternative to Gastro Force — playable solo, no multiplayer required. Shares Action and Indie with Gastro Force.
Project Warlock is a first-person shooter that fans of Doom, Hexen, and Wolfenstein cannot miss. It serves you an exploding cocktail of bullets, spells, and monsters. Battle through 60 levels of non-stop action, packed with bloodthirsty enemies and challenging bosses.
- 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.