Online co-op Investigation games

Every online co-op Investigation game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 41–50 of 178 games matching Investigation · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 5 players

A chaotic, asymmetrical party game for up to 5 players! One player becomes the Lord, while the others are Rebels hiding among the Peasants. Will the Lord expose them in time - or be overthrown?

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
96% of 29

Team up with up to 5 friends in this scientifically accurate-ish co-op adventure. Play as dung beetles trying to roll your precious dung ball safely home. The wildlife is dangerous, but your friends might be worse.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
0% of 1

The treacherous world of Cyber Neon and Data Mist, with the core gameplay of puzzle solving, deduction and parkour. Single-player or multi-player play as a time and space hacker, collect the subtle evidence scattered everywhere, to reveal the unknown shocking truth.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
88% of 9

Prop Haunt is a 4v1 multiplayer psychological horror game. Take on the role of spirits focused on expanding their influence on the physical world by haunting objects, or play as an investigator assigned to report on these hauntings to reduce the amount of paranormal activity in the world.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
20% of 5

Let Me Catch You is a first-person multiplayer ghost hunting horror game with co-op and asymmetrical PvP. Play solo or with up to 4 players, gather evidence, identify the ghost, and banish it — or play as the ghost and hunt the investigators.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
53% of 13

The Empty Halls is a VHS analog horror exploration game inspired by the idea of liminal spaces. Explore eerie Backrooms-style environments, record strange anomalies with your VHS camera, and complete missions assigned by the anonymous higher ups.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
92% of 26

An episodic co-op noir murder mystery. Play as one half of a crime-fighting duo: the detective Jack Finch and his police dog, Archie. Use your deduction skills and sense of smell to find evidence, interrogate suspects, and catch the culprit in a gritty story set in the Great Depression.

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$
Released
Price
$ · Cheap
Players
👥 3–15 players
Reviews
0% of 1

UNKNOWN FACES is a 3–15 player multiplayer social deduction game inspired by the Mafia party game, reimagined with darker themes and deeper strategy. Lies, manipulation, and betrayal fuel every round as players deceive, outsmart, and expose one another in a fight for survival.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
83% of 6

A game developer life and company management simulator where you build, grow, and dominate your own studio. Play solo, or collaborate and compete with friends in multiplayer.

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