Online co-op Detective games

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

Showing 21–30 of 136 games matching Detective · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
80% of 899

Garisani Detective Agency is a story-driven real-time co-op deduction game for 1990s Korea, play as a brother and his ghost sister, taking cases from the living and the dead. Gather clues from two angles and solve puzzles analog era of pagers and payphones.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
66% of 3

Observe. Patrol. Report. Spot anomalies with your team in tense, bite-sized rounds. Wrong votes trigger chaotic punishments and unexpected consequences.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
0% of 2

BugFixer is a 4-player co-op horror social deduction game where you must collect the bugs occurring in reality. As a specialized agent, your mission is to collect these bugs and survive until the end against both mysterious monsters and a hidden traitor among your teammates.

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$
Released
Price
$ · Cheap
Players
👥 4–11 players
Reviews
100% of 2

A multiplayer social deduction and investigation game where players gather clues, debate, and manipulate trust to resolve a mystery; with no elimination until the big finale.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
34% of 38

A murder mystery blended with sudoku-style logic and weapons. Explore suspicious rooms, examine weapon evidence, and piece together clues through sharp deduction to reveal the killer. Play alone or work online with up to 4 detectives to solve the case together.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

A sci-fi RPG strategy game where you build fleet, attack, trade and explore space. You can fight yourself, have others help you and upgrade your ship or buy plethora of ships for your space garage.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

In Silent Howl, every night is a fight for survival. Villagers must unmask the Werewolves lurking among them, ready to strike from the shadows. But beware, powerful hidden roles can shift the balance. Will you expose the truth and save the village, or tear it apart from within?

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
85% of 123

Agent 11 is back. The iconic tactical deck-builder returns, with new tricks up its impeccably tailored sleeves… and this time it’s with friends. Improvise within the space, adapt your deck to the challenges ahead, and overcome a roster of new enemies in stylish, animated, fight sequences.

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$
Released
Price
$ · Cheap
Players
👥 Up to 10 players
Reviews
100% of 1

Project Microchip is a social deduction game for up to 10 players. Complete objectives and escape as a Survivor, or become an Infected, hide your identity, earn the group's trust, and strike at the perfect moment.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
71% of 87

Work together to escape the manor in "Trapped Together", a narrative co-op puzzle campaign where logic reigns and death is not an option. Communicate, trade items via dumbwaiter, and solve intricate riddles.

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