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 91–100 of 178 games matching Investigation · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
97% of 35

Victor’s Test: a trial of supernatural resistance. Guard the museum at night, spot artifact anomalies, and adapt as doors shift—triggering or erasing them. Welcome to Victor’s Test Night: Rêves.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
55% of 89

Deadly Quiet is a 4-player co-op asymmetrical horror game set in the eerie Hoia Baciu forest. Featuring a bodycam perspective, your fate depends on your actions and the cooperation of your entire team. But remember to STAY QUIET.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
72% of 55

“PENTALOOP” is, a GM-less Murder Mystery game for 4 players. Play with family, friends, and like-minded people, Play together with your family, friends, or other like-minded people.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
80% of 5

The First Multiplayer Horror VR game inspired by Phasmophobia. Play with friends, laugh & run! Work together to solve puzzles, explore creepy places & survive scary chases with cool power-ups & customized avatars.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
65% of 47

First‑person escape‑room puzzler (1–4 players). Unite the Horn of the Fallen One, Scepter of Radiance, and Abbot’s Ring to escape a cursed convent in 60–90 minutes.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 3

Cul-De-Sac is an immersive ghost hunting experience / simulation. Walk around exploring a small neighborhood to investigate the strange occurrences and locate the entity's personal item and burn it to set her free into the realm beyond ours.

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$
Released
Price
$ · Cheap
Players
👥 3–10 players
Reviews
100% of 2

Escape Haunted Mansion is a horrific multiplayer deduction game for 3 to 10 players with voice chat. The Haunteds must complete tasks to escape, while the Cursed seek to eliminate them discreetly.

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$$
Released
Price
$$ · Standard
Players
👥 2–4 players
Reviews
100% of 1

With your friends, play as extravagant detectives in this wacky Point & Click game to solve the mystery behind multiple crimes. Will you manage to gather the clues that only you can find and share them with your team to accuse the right suspect?

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
66% of 116

Exorcist Simulator is a 1‑4 player online co‑op horror where every play asks the same, terrible question: Will you cast out the Devil —or wear his skin?

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Free
Released
Price
Free
Players
👥 4–16 players
Reviews
69% of 71

Impostor Online is a 4–16 player social deduction game of murder, lies, and paranoia. Every match you're dealt a secret role: investigate, heal, deceive—or kill. Someone at the table wants you dead. Find them first, or make sure they never find you.

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