Single-player games like Warhammer 40,000: Boltgun
Below are 23 single-player Steam games similar to Warhammer 40,000: Boltgun, 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 Warhammer 40,000: Boltgun page.
Ranked picks
- 1
DOOM + DOOM II
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
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.
- 2
Ion Fury
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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!
- 3
Hellbound
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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
Dread Templar
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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!
- 5
WRATH: Aeon of Ruin
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
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.
- 6
CULTIC
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
Death is only the beginning. Crawl from your grave and gear up to fight your way through the ranks of a mysterious and twisted cult. You, your guns, and your dynamite will have to shoot, slide, blast, duck, dodge, and maybe throw a gib or two to survive in this old-school-inspired shooter.
- 7
DOOM II
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
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
HROT
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
HROT is a single-player retro FPS set in a small socialist country neighboring Soviet Union (Czechoslovakia) after an unspecified disaster in 1986. Those times were dark and terrifying and so is the game.
- 9
Quake
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
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
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
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.
- 11
Prodeus
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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.
- 12
DUSK
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 13
Warhammer 40,000: Space Marine 2
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action with Warhammer 40,000: Boltgun.
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.
- 14
Turbo Overkill
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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!
- 15
ULTRAKILL
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
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.
- 16
Mars Horizon
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Indie with Warhammer 40,000: Boltgun.
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
- 17
Starship Troopers: Ultimate Bug War!
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
Lock and load into the Starship Troopers universe and join the Mobile Infantry in the most realistic depiction of war ever made! Experience an original story in this action-packed, first-person retro shooter. Would you like to know more?
- 18
Brewmaster: Beer Brewing Simulator
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required.
Brew your perfect beer in this relaxing home brewing sim. Use a realistic chemistry simulation to brew hoppy IPAs to creamy stouts. Customise your brewing space, create recipes and label your beer, unlock new equipment and enter competitions. Learn to brew, refine your craft and become a Brewmaster!
- 19
Dark Future: Blood Red States (Classic)
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Indie with Warhammer 40,000: Boltgun.
Step into the extraordinary, dystopian world of Dark Future, filled with danger, chaos and adventure. A game of both action and strategy unlike any other, featuring a unique time dilating command mode to help you make tactical decisions on the dangerous highways of this world.
- 20
Chainsaw Warrior (Classic)
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Indie with Warhammer 40,000: Boltgun.
Chainsaw Warrior from Games Workshop is the classic game for one strong-nerved player! It's 2032 and spatial warping has opened a hole into another dimension in the midst of the old municipal buildings at the heart of Manhattan. Bizarre and dangerous creatures are flooding into our dimension.
- 21
Ogre
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Indie with Warhammer 40,000: Boltgun.
The official adaptation of the legendary wargame from Steve Jackson Games. Engage in futuristic warfare with armored hovercraft, superheavy tanks, infantry, and giant cybernetic war machines called "Ogres".
- 22
Achtung! Cthulhu Tactics
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
Challenge the horrifying reign of Nazi terror and battle an immortal evil in Achtung! Cthulhu Tactics; a turn-based tactical strategy game set in the award-winning Achtung! Cthulhu universe.
- 23
Chainsaw Warrior: Lords of the Night (Classic)
Single-player alternative to Warhammer 40,000: Boltgun — playable solo, no multiplayer required. Shares Action and Indie with Warhammer 40,000: Boltgun.
Based on the 1987 Games Workshop classic, a battle vs zombies cultists & time! Fight against hordes of Aztec Zombies, and the clock, to save reality from Darkness. Lords of the Night introduces an upgraded combat system, new weapons, powers, equipment and unique mini bosses.