Free Investigation Games on Steam

Steam currently has 2,747 Investigation games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Investigation game rankings were last updated on 2/11/2025.

Looking for more? Explore other lists such as:

1. 买个可乐饼吧! - Buy a Croquette!

March 2012, Nagano. The smart and brave high school girl, Chio Aozora, is facing a major crisis: she has no money to buy a croquette! Navigate through the streets and alleys of Nagano, interact with a variety of characters, solve complex puzzles, collect 380 yen in coins, and buy a croquette!

买个可乐饼吧! - Buy a Croquette! banner

买个可乐饼吧! - Buy a Croquette! holds the #1 spot for "best free Investigation game on Steam" with a Player Score of 95. Its score was calculated by analyzing a total of 3,624 reviews on Steam. This breaks down to a total of 3,591 positive reviews and 33 negative reviews — making it "Overwhelmingly Positive" on Steam.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

Release Date 4/27/2024
Developer 越青
Publisher Eternal Dream
Steam App Id 2167960

2. Adventure Escape Mysteries

Experience the unique puzzles and critically-acclaimed stories enjoyed by tens of millions of players. Investigate cryptic clues, unravel a mystery, and solve puzzles in beautifully illustrated adventures!

Adventure Escape Mysteries banner

Adventure Escape Mysteries has achieved a Player Score of 82, placing it in the #2 spot for the best free Investigation games. Its score was calculated by analyzing a total of 859 reviews on Steam. This breaks down to a total of 746 positive reviews and 113 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Adventure Escape Mysteries on the Steam Deck (though some functionality may be limited).

Release Date 5/5/2020
Developer Haiku Games Co
Publisher Haiku Games Co
Steam App Id 1141020

3. Contraband Police: Prologue

Take over the duties of a border guard inspector in a communist country of the 80's. Smuggling, corruption and forgery are the order of the day here. Be vigilant and earn the respect of your superiors.

Contraband Police: Prologue banner

Contraband Police: Prologue has achieved a Player Score of 86, placing it in the #3 spot for the best free Investigation games. Its score was calculated by analyzing a total of 7,042 reviews on Steam. This breaks down to a total of 6,265 positive reviews and 777 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Contraband Police: Prologue on the Steam Deck (though some functionality may be limited).

Release Date 2/16/2021
Developer Crazy Rocks
Publishers
Steam App Id 1396240

4. Escape Room - Der kranke Kollege

You only wanted to make a visit to your sick colleague, but what you encounter is beyond your imagination. Discover the secrets of your colleague and find a way to escape the trap.

Escape Room - Der kranke Kollege banner

Escape Room - Der kranke Kollege has achieved a Player Score of 80, placing it in the #4 spot for the best free Investigation games. Its score was calculated by analyzing a total of 11,824 reviews on Steam. This breaks down to a total of 9,701 positive reviews and 2,123 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Escape Room - Der kranke Kollege on the Steam Deck (though some functionality may be limited).

Release Date 9/5/2020
Developer Bitbeast Games
Publisher Bitbeast Games
Steam App Id 1301720

5. We Were Here

Lost in a frozen wasteland and split up from your partner inside an abandoned castle, the only possession you have left is a walkie-talkie with a familiar voice on the other end. Can the two of you find your way out in time?

We Were Here banner

We Were Here has achieved a Player Score of 88, placing it in the #5 spot for the best free Investigation games. Its score was calculated by analyzing a total of 29,199 reviews on Steam. This breaks down to a total of 26,374 positive reviews and 2,825 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on both Windows and Mac systems. At the moment, it is not possible to play or run We Were Here on the Steam Deck.

Release Date 2/3/2017
Franchise Total Mayhem Games
Developer Total Mayhem Games
Publisher Total Mayhem Games
Steam App Id 582500

6. Escape Memoirs: Mini Stories

"Escape Memoirs: Mini Stories" is a series of co-operative escape-room style puzzle scenarios. Each one is sure to test your wits as you try to overcome the challenges that stand in the way of your escape.

Escape Memoirs: Mini Stories banner

Escape Memoirs: Mini Stories has achieved a Player Score of 82, placing it in the #6 spot for the best free Investigation games. Its score was calculated by analyzing a total of 5,178 reviews on Steam. This breaks down to a total of 4,401 positive reviews and 777 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Escape Memoirs: Mini Stories on the Steam Deck (though some functionality may be limited).

Release Date 9/30/2022
Franchise 0 Deer Soft
Developer 0 Deer Soft
Publishers
Steam App Id 2098350

7. Unsolved Case

A new lead turns up old doubts about an 'Unsolved Case'. A trap, or a copycat killer? In this co-op puzzle game prequel to the award-winning Cryptic Killer series, put on your detective badges as you collaborate and communicate to crack the codes, solve the riddles, and catch the Cryptic Killer.

Unsolved Case banner

Unsolved Case has achieved a Player Score of 86, placing it in the #7 spot for the best free Investigation games. Its score was calculated by analyzing a total of 5,230 reviews on Steam. This breaks down to a total of 4,640 positive reviews and 590 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

Release Date 11/24/2022
Franchise Eleven Puzzles
Developer Eleven Puzzles
Publisher Eleven Puzzles
Steam App Id 2084050

8. Hello Neighbor Alpha 4

Alpha 4 of Hello Neighbor was the final alpha during the stealth hit's development. Sneak into your creepy Neighbor's house to figure out what he's hiding.

Hello Neighbor Alpha 4 banner

Hello Neighbor Alpha 4 has achieved a Player Score of 82, placing it in the #8 spot for the best free Investigation games. Its score was calculated by analyzing a total of 4,710 reviews on Steam. This breaks down to a total of 4,013 positive reviews and 697 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Hello Neighbor Alpha 4 on the Steam Deck (though some functionality may be limited).

Release Date 10/19/2019
Franchise Hello Neighbor Game
Developer Dynamic Pixels
Publisher tinyBuild
Steam App Id 1096710

9. Monster Hunter Rise: Sunbreak Demo

Get a taste of the single-player and multiplayer action of Monster Hunter Rise and its massive expansion Monster Hunter Rise: Sunbreak in this demo. Experience new Sunbreak features as you taken on Great Izuchi, Tetranadon, Astalos and Malzeno!

Monster Hunter Rise: Sunbreak Demo banner

Monster Hunter Rise: Sunbreak Demo has achieved a Player Score of 78, placing it in the #9 spot for the best free Investigation games. Its score was calculated by analyzing a total of 1,164 reviews on Steam. This breaks down to a total of 946 positive reviews and 218 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Monster Hunter Rise: Sunbreak Demo on the Steam Deck (though some functionality may be limited).

Release Date 6/15/2022
Franchise Capcom
Developer CAPCOM Co., Ltd.
Publisher CAPCOM Co., Ltd.
Steam App Id 1836450

10. Hello Neighbor Alpha 1

This is Alpha 1 of Hello Neighbor, a Stealth Horror Game about sneaking into your neighbor's house and figuring out what he's hiding in the basement. Play against an advanced AI that learns from your actions.

Hello Neighbor Alpha 1 banner

Hello Neighbor Alpha 1 has achieved a Player Score of 89, placing it in the #10 spot for the best free Investigation games. Its score was calculated by analyzing a total of 3,311 reviews on Steam. This breaks down to a total of 3,052 positive reviews and 259 negative reviews — making it "Very Positive" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Hello Neighbor Alpha 1 on the Steam Deck (though some functionality may be limited).

Release Date 10/12/2019
Developer Dynamic Pixels
Publisher tinyBuild
Steam App Id 1092710

More Free Investigation Games

Explore even more rankings for the 100 best free Investigation games available on Steam.

Soures & References

Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.

  • Valve Corporation. (2025, February 11). Steam Store. Steam Store.
  • Valve Corporation. (2025, February 11). 买个可乐饼吧! - Buy a Croquette! on Steam. Steam Store.
  • Valve Corporation. (2025, January 31). Adventure Escape Mysteries on Steam. Steam Store.
  • Valve Corporation. (2025, January 9). Contraband Police: Prologue on Steam. Steam Store.
  • Valve Corporation. (2025, January 26). Escape Room - Der kranke Kollege on Steam. Steam Store.
  • Valve Corporation. (2025, February 12). We Were Here on Steam. Steam Store.
  • Valve Corporation. (2025, February 13). Escape Memoirs: Mini Stories on Steam. Steam Store.
  • Valve Corporation. (2025, February 4). Unsolved Case on Steam. Steam Store.
  • Valve Corporation. (2024, October 7). Hello Neighbor Alpha 4 on Steam. Steam Store.
  • Valve Corporation. (2025, January 27). Monster Hunter Rise: Sunbreak Demo on Steam. Steam Store.
  • Valve Corporation. (2024, November 9). Hello Neighbor Alpha 1 on Steam. Steam Store.

Discover More Steam Games

Browse our top collections and curated lists of games avaible to play on Steam. Whether you are playing on PC, Mac, or on the Steam Deck, find your next favorite game.

Steam Deck Games

Steam Mac Games

Steam Linux Games

Explore

Discover the best of Steam. Find your next game, free weekend, or even track the next Steam Sale all in one spot.