Patch 1.0.3
- Added Brazilian Potuguese localization.
- Added "Exposure" (brightness) slider in the video settings
- Minor rework on the Options menu
+2 more changes

One/Iro is free to play on PC. Play it through Steam. Prices last updated .
Yes, One/Iro is free to play on PC and available from Steam.
Yes, One/Iro is listed as a single-player game, with no multiplayer or co-op modes.
One/Iro is available on PC.
Yes, One/Iro supports Linux.
One/Iro was released on July 9, 2025.
One/Iro needs at least 350 MB of free storage.
Minimum on Windows: Core 2 Duo E6400 CPU, Nvidia Geforce GT620 1GB or equivalent graphics, 4 GB RAM.
One/Iro was developed by Altrea Stories.
Latest patch notes · From the official Steam announcements feed
+2 more changes
+1 more change
This update resolves an issue with the player cursor showing during cutscenes
Hi everyone! After 5 years One/Iro is finally available on Steam! We are happy to announce that our very first game is now available to everyone on Windows and Linux! Prepare to help Dylan solve puzzles and unravel the mystery...and find…
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