Single-player games like Slipgate
Below are 8 single-player Steam games similar to Slipgate, 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 Slipgate page.
Ranked picks
- 1
Warhammer 40,000: Boltgun
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Indie with Slipgate.
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
- 2
Project Warlock II
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Indie with Slipgate.
Adrenaline-pumping gore retro funhouse that’s full of guns, magic, demons, vertical arenas, 3D visuals, 2D sprites, and heavy metal music. Inspired by FPS classics like Quake and Doom 64, Project Warlock II is the explosive boomer shooter sequel you were too shy to ask for.
- 3
Hellbound
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Indie with Slipgate.
Classic First Person Shooter style game. Like the good old days. An action game focused on speed, gore, guns, and metal music. Inspired by the 90s’ classics with modern visuals and audio!
- 4
WRATH: Aeon of Ruin
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action with Slipgate.
Blast, slice and shred through your enemies in this hardcore FPS inspired by the icons of the '90s, powered by the legendary Quake-1 Tech. Taking place in a realm left to rot, take up arms, unearth long-forgotten secrets and hunt down the Guardians of the Old World.
- 5
Nightmare of Decay
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Indie with Slipgate.
A first-person action horror game set in a nightmarish manor infested with zombies, psychotic cultists, and a horde of other horrors. Utilize an assortment of different weapons in a brutal fight for survival as you try to escape from the Nightmare of Decay.
- 6
DOOM II
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action with Slipgate.
Hell has invaded Earth, and to save it, you must battle mightier demons with even more powerful weapons. This beloved sequel to the groundbreaking DOOM (1993) introduced players to the brutal Super Shotgun, the infamous Icon of Sin boss, and more intense FPS action.
- 7
INCISION
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Indie with Slipgate.
Ultraviolent, fast-paced, merciless retro FPS action. Slaughter your way through nightmarish industrial mazes, transformed cityscapes, and surreal alien structures to cut down the Growth.
- 8
Blood: One Unit Whole Blood
Single-player alternative to Slipgate — playable solo, no multiplayer required. Shares Action and Adventure with Slipgate.
You carved your soul to shreds in servitude to a dark god, but false promises and betrayal were your only reward. Now you have a score to settle and it will be measured in blood! Experience the madness in one carnage-soaked package! All the gore, all the unholy war! Zombies, gargoyles, hellhounds and blood-crazed hordes of horrors await!