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App ID 646960
App Type Game
Developer ,
Publisher B-Side Games
Supported Systems Windows macOS
Last Change Number 14367404
Last Record Update 29 March 2022 – 23:54:44 UTC ()
Release Date 30 June 2017 – 18:04:43 UTC ()

3:21 is divided into smaller adventure games that open a dialog with the player and encourage interaction and exploration. Through the player's interactions with these that serve as a timeline of events, they discover what 3:21 is really about and just how real games can get.

Play on Steam

User Tags

AdventureIndieFree to Play


Additional Information

clienticon 7d8ceb973cad2a250336b0d0b4dac30718e10cad
clienttga e0748884b27b21c2a2a0c4ac1c97547783407373
icon 60fbbf5f0e7de82bd4aa7af2a38f5aad63df9542
logo 0bd2d8e77941a744171b65eee1d025cd906edb5b
logo_small 0bd2d8e77941a744171b65eee1d025cd906edb5b_thumb
Developer B-Side Games
metacritic_name Three Twenty One
community_visible_stats Yes
ReleaseState released
Publisher B-Side Games
IsFreeApp Yes
Exclude from family sharing (exfgls) Yes
Store Release Date 30 June 2017 ()
osarch 64
community_hub_visible Yes
Primary Genre Adventure (25)
Store Genres Adventure (25), Indie (23)
Steam Release Date 30 June 2017 – 18:04:43 UTC ()
Store Asset Modification Time 17 June 2017 – 19:41:16 UTC () (1497728476)
Is free on the store? Yes
Web Assets
capsule_231x87.jpgLast-Modified: 14 June 2017 – 22:42:30 UTC
capsule_467x181.jpgLast-Modified: 14 June 2017 – 22:42:30 UTC
capsule_616x353.jpgLast-Modified: 14 June 2017 – 22:42:30 UTC
header.jpgLast-Modified: 14 June 2017 – 22:42:29 UTC
review_score 5
review_percentage 50
Detected Technologies (?) Engine.Unity
Store API Release Date (may be wrong) 30 June 2017 – 18:04:43 UTC () (1498845883)

Supported Languages

2 Languages Interface Full Audio Subtitles Achievements
English Yes Yes Yes Yes
German Yes
  • 0 players right now
  • 0 24-hour peak
  • 18 all-time peak

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Initializing graph of a week…

Lifetime concurrent players on Steam

Data is limited. You can sign in to view data per day.

Initializing graph of a year…

Concurrent players

  • 0 players right now
  • 0 24-hour peak
  • 18 all-time peak

Owner estimations

Store data

  • 22 positive reviews
  • 22 negative reviews
  • 50.00% positive reviews

Playtime estimations by SteamSpy

  • 0 minutes median playtime in last 2 weeks
  • 0 minutes median total playtime
  • 0 minutes average playtime in last 2 weeks
  • 0 minutes average total playtime

Twitch Stats

  • 0 viewers right now
  • 0 24-hour peak
  • 3 all-time peak

Steam game hub followers chart

Initializing followers chart…

Monthly breakdown

Sign in to see a player breakdown per month.

How many players are playing Three Twenty One right now on Steam? There are 0 players in Three Twenty One on Steam. Three Twenty One player counter. Three Twenty One Steam charts.

Packages that include this app

SubID Name Billing Type Last Update
181875 Steam Sub 181875 CD Key 27 June 2017 – 17:35:01 UTC
181876 ThreeTwentyOne for Beta Testing CD Key 29 June 2017 – 14:49:07 UTC
181877 Three Twenty One Free on Demand 27 June 2017 – 17:33:59 UTC
191989 Three Twenty One - Retail Key CD Key 5 July 2017 – 21:41:41 UTC
263952 Three Twenty One ( 646960 ) - complimentary reviewer package No Cost 9 April 2018 – 13:13:20 UTC

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Downloadable Content

AppID Name Last Update
649550 Three Twenty One - Extra Content 11 September 2019 – 15:59:00 UTC


ID Name Max Size OS Extra Info
646961 Three Twenty One Windows 6.93 GiB
649550 Three Twenty One - Extra Content Windows (649550) Depot 1.26 GiB DLC 649550
646962 Three Twenty One Mac 6.96 GiB
649551 Three Twenty One Extra Content Mac DLC 74.16 MiB DLC 649550
646963 Three Twenty One Linux 6.96 GiB 64-bit


Name Description Build ID Time Updated
public 1952892 11 July 2017 – 17:15:00 UTC
development 1938540 5 July 2017 – 14:54:30 UTC

Launch Options

0. Start the main game
Executable 321.exe
Launch Type Launch (Default)
Description Start the main game
Operating System   windows
CPU Architecture 64-bit only
2. Rezzed2016 Demo
Executable /Three Twenty One Extra Content/Rezzed2016 Demo/ThreeTwentyOnePreview.exe
Launch Type Play %%description%% (option1)
Description Rezzed2016 Demo
Operating System   windows
CPU Architecture 64-bit only
Owns DLC Three Twenty One - Extra Content (649550)
3. Unnamed launch option
Launch Type Launch (Default)
Operating System   macos
CPU Architecture 64-bit only
4. Unnamed launch option
Launch Type Launch (Default)
Operating System   linux
CPU Architecture 64-bit only


Key Value
installdir Three Twenty One

User File System

Key Value
quota 9.54 MiB (10000000)
maxnumfiles 5
  • 0/path: Saves
  • 0/pattern: *.321
  • 0/root: gameinstall
  • 1/path: Saves
  • 1/pattern: *.txt
  • 1/root: gameinstall

Save File Locations

Based on the configuration above, this is where we think the save files are located.

Read more about cloud saves in Steamworks documentation.

Platform Path Pattern
[All OSes] [Steam Install]/steamapps/common/Three Twenty One/Saves *.321
[All OSes] [Steam Install]/steamapps/common/Three Twenty One/Saves *.txt

Other apps that reference this app



Crunching history, just for you…

API name Display name and description Icons
Football_Achievement And The Winner Is...


Bear_Achievement Good With Words


Castle_Achievement A Good Track Record


FakeEnd_Achievement The End...?


Skull_Achievement Death Is Only The Beginning


Books_Achievement Leave A Legacy In Literature


Alien_Achievement Isolation Is Not Fun


End_Achievement The End Brings New Beginnings

Complete the game

Print_Achievement Computer Genius


Void_Achievement What Lies Beyond


Letter_Achievement A Message From Me


Horse_Achievement All My Little Horses


Bereaved_Achievement What's Left Behind


Viking_Achievement An Ancient Story


PT_Achievement I Have Been Here Before


Radio_Achievement Radio Star


DLC_Achievement Supporting The Cause


Backstory_Achievement A Look Behind The Scenes


Office_Achievement Cleaning Up Your Past


Restart_Achievement There Is More To See


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