Single-player games like Project Warlock II
Below are 13 single-player Steam games similar to Project Warlock II, 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 II page.
Ranked picks
- 1
Project Warlock
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
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.
- 2
Warhammer 40,000: Boltgun
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
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.
- 3
WRATH: Aeon of Ruin
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
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.
- 4
Rise of the Triad: Dark War
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
You are part of an elite group of operatives called HUNT (High-risk United Nations Taskforce), and you must stop a maniac cult leader from killing millions of people. You are equipped with high-tech weaponry and magical instruments that defy description to invade the monastery and stop the madness.
- 5
Ion Fury
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
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!
- 6
Dread Templar
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
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!
- 7
DOOM + DOOM II
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
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.
- 8
The Citadel
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
The Citadel is a brutal first person shooter, and a love letter to classic games such as Marathon, Doom and Wolfenstein 3d. Descend into the depths of a dark citadel, and fight through 6 Episodes and 30 levels of action packed with 6 challenging bosses. Go forth, Martyr.
- 9
Quake
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
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
DOOM II
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
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.
- 11
DOOM
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action with Project Warlock II.
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.
- 12
Prodeus
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.
- 13
Turbo Overkill
Single-player alternative to Project Warlock II — playable solo, no multiplayer required. Shares Action and Indie with Project Warlock II.
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!