Single-player games like Heterodox
Below are 8 single-player Steam games similar to Heterodox, 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 Heterodox page.
Ranked picks
- 1
WRATH: Aeon of Ruin
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action with Heterodox.
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.
- 2
Arthurian Legends
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
Arthurian Legends is a medieval first person action game set in the land of Albion during a time of myth and legend. Battle hordes of Saxons, demonic beasts, the undead and worse in thy quest to save Albion from The Masters of the Old Religion.
- 3
Ion Fury
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
- 4
Warhammer 40,000: Boltgun
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
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.
- 5
Maximum Action
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
MAXIMUM Action is a brutal and satisfying physics-based first person shooter influenced by Hong Kong cinema, heroic slow motion bloodshed, and old-school FPS ACTION.
- 6
Anger Foot
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
Anger Foot is a lightning fast action FPS where the only things harder than your ass kicking feet are the ass kicking beats.
- 7
DOOM II
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action with Heterodox.
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.
- 8
Dread Templar
Single-player alternative to Heterodox — playable solo, no multiplayer required. Shares Action and Indie with Heterodox.
Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!