Single-player games like Bone Mayhem
Below are 8 single-player Steam games similar to Bone Mayhem, 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 Bone Mayhem page.
Ranked picks
- 1

GROUND-UNBOUND
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
GROUND-UNBOUND is a procedurally generated, high-intensity movement shooter with a retro wave art style. It features roguelike mechanics with a number of skills, guns and abilities to play with, including a variety of enemy types. Created during the 7-Day BigFry Game Jam, updated for steam release.
- 2

HYPERGUN
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
Fight through waves of alien interlopers and save the world as Dewey Owens in HYPERGUN, a fast-paced roguelite shooter centering around a procedural weapon of questionable effectiveness. Enter the simulation. Build the HYPERGUN!
- 3

Emitters - Drone Invasions
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
A fast-paced, first-person experience set in a future taken over by deadly hi-tech drones. As humanity's only hope, it's your mission to identify this threat's origin and neutralize it. But are you ready to face an army whose single target is yourself?
- 4

X Invader
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
X Invader is an action roguelite where you hack into big corporations' servers. Use add-ons from fellow hackers to defeat monsters. Powerful, cute bosses guard these servers!
- 5

Soulslinger: Envoy of Death
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
You are a gunslinger in limbo, involved in a gritty war against "The Cartel", a ruthless organization harvesting souls to break free of the shackles of the afterlife. Grow stronger with each new run, gather the essence of lost souls to take on the biggest threats in this rogue-lite FPS!
- 6

Ziggurat
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
Dungeon-Crawling First Person Shooting at its finest! Fast-paced combat! Dozens of perks, spells and enemies! Level ups! Random Dungeons! Traps! Badass bosses! Carrots!
- 7

Voidborn
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
Slay demons and demigods in this fast-paced roguelite FPS. Create devastating weapon builds as you journey through massive dark fantasy environments on your quest to avenge god. Challenge the demigods, face inevitable death, and rise stronger with every rebirth.
- 8

Gacha Fever
Single-player alternative to Bone Mayhem — playable solo, no multiplayer required. Shares Action with Bone Mayhem.
Gacha Fever is a suvivors like in a cute and colorful universe. You will fight waves of monsters with various weapons, from the machine gun to the magical girl wand and the Bubble Tea Canon ! Just be careful of the area !