Co-op games like BugFixer
Below are 8 cooperative Steam games similar to BugFixer, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like BugFixer page.
Ranked picks
- 1

Deep Dark Space
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
Deep Dark Space is a 4-player online co-op horror experience set in space. Explore abandoned stations, gather clues, and uncover the monster lurking in the dark. Trust no one — paranoia runs high as hidden betrayals threaten your survival.
- 2

Sincognito
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
A social deduction investigation horror game where one of you is secretly possessed by a Deadly Sin. Use stealth and proximity chat to cooperate or deceive as you gather clues and compare findings to deduce which Sin is haunting the castle.
- 3

Cultprits
Online Co-op alternative to BugFixer — playable with friends. Shares Indie and Adventure with BugFixer.
Only your investigation can stop an Eldritch God from awakening... except some of you are secretly cultists.
- 4

4 Penny Coffins
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
In 4 Penny Coffins, up to 8 players hunt a hidden murderer through lies, shifting alibis, and hard evidence in our online multiplayer mode. This social investigation game also includes a solo mode for those brave enough to face the fog alone.
- 5

NMO - No More Operators
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
NMO is a thrilling multiplayer (3 to 6 players) game where one player, the impostor (Ox), lurks in the shadows to deceive and neutralize the Operators, while others take on the role of Operators, working independently or cooperatively to identify and eliminate the Ox hidden among them.
- 6

Necrowhisper
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
A tense investigative horror experience for solo or up to 4-player co-op, where you search for clues in the dark to uncover the truth behind a spirit’s death before something else finds you first.
- 7

Killer Inside Us
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
This game is available to play online with your friends (4-10 people). Inside the station there are killers and crewmates. The job of the killers is to kill the crewmates and don't get caught. They also can sabotage the station by disturbing the work of the space station.
- 8

BACKROOMS: APPREHENSION
Online Co-op alternative to BugFixer — playable with friends. Shares Action and Indie with BugFixer.
A terrifying multiplayer horror experience with social deduction elements. Trapped in the Backrooms, up to 12 players must try to work together to survive and expose the shapeshifting Skin Stealer hiding among them before it’s too late. Who will you trust?