Single-player games like Project Warlock
Below are 15 single-player Steam games similar to Project Warlock, 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 Project Warlock page.
Ranked picks
- 1
BLOODKILL
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
BRUTAL First Person Shooter focused on action, gore, and exploration. Fueled by adrenaline-pumping trap-metal soundtrack.
- 2
Hellbound
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
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!
- 3
BLOODKILL: Goreblast Overkill
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
BRUTAL shooter focused on action, gore, and old school death metal music. Unleash your overpowered arsenal to goreblast hordes of ferocious beasts on your way through ancient dark forest.
- 4
Devilated
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
Devilated is an ultraviolent RPG old-school shooter where you brutalize and cannibalize your demonic foes in equal measure. Eat their face before they eat yours.
- 5
DOOM 64
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
Play the enhanced version of the original game released on the Nintendo 64 in 1997. Years have passed since you stopped Hell’s invasion of Earth. Quarantined for humanity’s safety, the UAC research facilities on Mars were abandoned and forgotten...until now.
- 6
DOOM + DOOM II
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
Developed by id Software, and originally released in 1993 and 1994, the definitive, newly enhanced versions of DOOM + DOOM II are available as a combined product.
- 7
Project Warlock II
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
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.
- 8
BRUTAL JOHN 2
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
Join BRUTAL JOHN and BRUTAL DOG in a ultraviolent old-school FPS set in a world overrun by crypto-mining technologies, where it’s up to you to destroy them and reclaim control. Prepare for an adrenaline ride that pays homage to the best shooters of the '90s.
- 9
Quake
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.
- 10
ULTRAKILL
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
ULTRAKILL is a fast-paced ultra-violent retro FPS that combines the skill-based style scoring of character action games with the unadulterated carnage inspired by the best shooters of the '90s. Rip apart your foes with varied destructive weaponry and shower in their blood to regain your health.
- 11
Wolfenstein 3D
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
World War II rages. The Nazis are planning to build an unstoppable, mutant army. On a mission to steal the secret plans, you were captured and imprisoned. Now, a lucky break gives you the chance to escape, but a maze of passages and trigger-happy Nazis stand in your way.
- 12
Turbo Overkill
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock.
Enter Paradise as Johnny Turbo—half-metal, half-human, all-murder machine. Clean up the streets with a chainsaw leg, 15+ weapons and your hovercar as you battle the rogue AI Syn, rival bounty hunters and cyberpunks aplenty. Apogee’s most outrageous FPS since Duke Nukem 3D. Good hunting, Sir!
- 13
Proteus
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Indie with Project Warlock.
Proteus is a game about exploration and immersion in a dream-like island world where the soundtrack to your play is created by your surroundings. Played in first-person, the primary means of interaction is simply your presence in the world and how you observe it.
- 14
HeXen II
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
The Four Horsemen of the Apocalypse lurk in the shadows before you. They are Death, Pestilence, Famine, and War. They are the root of all that is evil, but the least of your worries. The last of the three Serpent Riders yet lives.
- 15
DOOM
Single-player alternative to Project Warlock — playable solo, no multiplayer required. Shares Action with Project Warlock.
Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.