Single-player games like B99
Below are 8 single-player Steam games similar to B99, 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 B99 page.
Ranked picks
- 1

Ancient Dungeon
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Ancient Dungeon VR is a fast-paced roguelite dungeon crawler built for VR. Explore procedurally generated dungeons, slash enemies, collect loot, and unlock upgrades in immersive physics-based combat. Play solo or co-op with up to 4 players.
- 2

COMPOUND
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
COMPOUND is a randomized rogue-lite, free-roaming shooter for VR veterans. Duck and dodge around enemy fire in a tough-as-nails retro FPS with multiple locomotion options. Download the demo below!
- 3

Legend of Dungeon
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Legend of Dungeon is a randomly generated action RPG Beat'em'up with heavy Rogue-like elements, striking visuals, and dynamic music.
- 4

Killing Room
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Rogue-like FPS with strong RPG elements set in a 22nd century reality-show parody. Win a fortune or die, but never disappoint your audience. And audience is virtual or real with revolutionary but optional features for streamers and their fans.
- 5

Cosmodread
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Cosmodread is a VR survival horror roguelike about escaping a dying spaceship filled with nightmares. Stranded in a hostile universe, you must explore, survive, and find your way back to the safety of Earth.
- 6

Ziggurat
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
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

Our Darker Purpose
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Journey to the dark heart of the Edgewood Home for Lost Children in this fiendishly difficult action RPG!When her teacher stepped out of the classroom a month ago, Cordy never imagined he would be gone for good. Now her fellow students have turned on each other as the school descends into chaos.
- 8

Dungeon Souls
Single-player alternative to B99 — playable solo, no multiplayer required. Shares Action and Indie with B99.
Dungeon Souls is an action-adventure roguelike dungeon crawler which draws heavy inspiration from Nuclear Throne, Risk of Rain, and Overture. Explore vast procedurally generated dungeons, collect loot, and slay hordes of challenging enemies!