Announcement
v1.0.41.0.4
1F Floor Puzzle: Changed so that options appear immediately upon inserting a card. Adjusted Boss HP. Bug fixes.
Steam
DEVICE 0101
Also known as DEVICE 0101, d0, device 0101
"Device0101" is a mystery action-adventure. Inside a grand mansion, you must find keys to open doors, solve puzzles, and defeat monsters in order to escape.
Last update
23 May 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- December 2025
- 1.0.3Fixed an issue where certain quests did not disappear under specific conditions. Fixed an error that occurred when interacting with the necklace. Fixed an issue where Lisa’s dialogue would appear when playing as John wh…
- 1.0.2Fixed a bug where the 'Continue' option was disabled in certain situations.
- 1.0.1At the very start of the launch, we encountered an issue where the game build did not correctly transition from Early Access to the Full Release version. (This has been fixed, and the Full Release version is now availab…
- BugAt the very start of the launch, we encountered an issue where the game build did not correctly transition from Early Access to the Full Release version. (This has been fixed, and the Full Release version is now availab…
- November 2025
- The update will be available on December 4th. Content Additions and Changes: Various bug fixes Level design improvements New and revised items New weapon: submachine gun New music and sound effects Added Chinese and Jap…Store
- May 2024
- 0.1.14Fixed a bug in the first room puzzle. Fixed a bug when pushing boxes.
- Fixed first room puzzle, changed where some monsters appear.Changed where some monsters appear. Fixed the first room puzzle.
- April 2024
- Fixed a bug where moving ammo from an item box to your inventory could cause an error that prevented you from progressing in the game.Store
- Bug fixes and options menu.Fixed a bug where players would not take damage when attacked by a machine. Added the ability to change between full screen and windowed mode to the options.
- Changed drawer puzzle hint, fixed tentacle monster judgment bug.Changed the hint for the drawer puzzle inside the purple door. Fixed a judgment bug when a tentacle monster attacks the player. And you can change to windowed mode by pressing F4.
- Bug where the hand position is off the drawer and unable to open it - Fixed Bug with no sound when Tab is pressed - Fixed Item - Added Regeneration Syringe. Item - We've also temporarily added a shotgun that we were pla…Store
Gallery
In-game media
Achievements
Community progression
Top picks from 11 Steam achievements, sorted by player unlock rates.
- Meet JohnMeet John54.2%
- Meet CoyMeet Coy49.1%
- Meet KlausMeet Klaus27.1%
- Meet MorganMeet Morgan27.1%
- The Friend Who Became a MonsterDefeat the friend who became a monster.25.4%
- Find TylerFind Tyler25.4%