Single-player games like Biohazard Protocol
Below are 8 single-player Steam games similar to Biohazard Protocol, 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 Biohazard Protocol page.
Ranked picks
- 1
Peace Dice
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
The post-apocalypse. When some are trying to survive in a new world, others join the detective agency "Peace Dice", which searches for evidence of mutants. Go on a raid and don't come back empty-handed!
- 2
Lights Out
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
Lights Out is a sokoban-style co-op game in which you make your way through a procedurally-generated mineshaft. Work as a team to gather resources, craft mirrors and use the Light Beam to fight against the hazards of this world, before it runs out of coal, and all will be covered in darkness.
- 3
HitTube
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
HitTube is an open-world roguelike looter shooter. You're a post-apocalyptic video blogger who fights for donations while streaming your survival. Shoot, loot, trade and use magical cards to gain superpowers in a procedurally generated world!
- 4
Catacrypt
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
Catacrypt is an online co-op roguelite dungeon crawler. Enter procedurally generated dungeons to obtain powerful upgrades and craft unique weapons. Descend floors and fight increasingly harder enemies and bosses, all to reach the bottom.
- 5
PILGRIM
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
Pilgrim is a medieval-based, co-op horror, adventure. Can you and your friends make it to the end of The Road?
- 6
Undead Night Crew
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
You work for Undead Cleaning Services. The job: rid the world of the undead. Jump in online with friends, build a crew of unique auto-attacking fighters, and stack wild synergies in a stunningly illustrated zombie apocalypse. Casual enough to pick up, deep enough to keep you coming back.
- 7
Hell Above
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action with Biohazard Protocol.
Team up to hack, slash, fight, and DIE (... a lot). A merciless soulslike boss-rush trapped in a low-poly, PS1-era Dante poem... except this time you're venturing up the inferno...
- 8
Son of a Witch
Single-player alternative to Biohazard Protocol — playable solo, no multiplayer required. Shares Action and Indie with Biohazard Protocol.
Action roguelike for 1-4 players with cute graphics and deep game mechanics. Combine dozens of different weapons, magic items, potions and spells with unique effects to beat 8 enemy factions and 28 bosses. Can you find the ancient goblin artifact at the end of the dungeon?