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 81–90 of 178 games matching Investigation · updated 12 Oct 2026

Filters: Investigation × Clear all
$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
84% of 2,443

Escape room meets co-op survival horror. The year is 1998, and an ancient curse has been unleashed, trapping everyone on Mount Bisik. Alone or with up to 4 players, you must explore, find clues, figure out a way to escape...and survive the horror.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
100% of 4

The Storyteller is an indie game developed by a single person, where one player becomes the storyteller narrating mysterious tales, while others attempt to unravel unexpected solutions. A multiplayer experience blending suspense and questionable humor.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
66% of 322

Explore familiar stories with Sherlock Holmes! Solve mysteries, find hidden objects, and play match-3 puzzles to restore classic tales. Join clans, take part in events, and uncover secrets across hundreds of detailed levels — the magnifying glass is in your hands!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
62% of 8

Look At Me is a first-person horror co-op game for up to 4 players, where the goal is to escape a haunted house by solving mysteries and avoiding the ghost of a girl who died in the house a long time ago.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
28% of 7

An online co-op horror RPG where you run a ghost-hunting agency. Explore haunted locations, uncover the nature of entities, upgrade your skills and tools, and survive their curses.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
53% of 13

Dr. Voss' Escape Room is a relaxing multiplayer puzzle game for up to 4 friends. Explore a mysterious lab, solve challenging puzzles, and uncover secrets to create the immortality potion. Perfect for those who love teamwork, creativity, and a chill escape room experience!

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
30% of 13

Red Core Division is a co-op survival horror game for 1–4 players. Enter a classified containment facility, where something has gone horribly wrong. Your mission: find evidence of paranormal activity, complete high-risk objectives, and escape alive. But, something is down there—something that hunts.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
84% of 717

Two detectives, one deadly experiment, a race against time. Each player only has one half of the puzzle. In this 2-player co-op puzzle game you can survive the parallel experiment only by working together.

If you loved these, you'll love this