The sobosuba 1.2.3 update introduces an official mid-game save and resume system alongside fixes for Clean achievement tracking and visual typography improvements. Released on September 8, 2026, by solo developer keepeetron, this patch targets one of the most requested quality-of-life additions from the Steam community discussions: allowing players to pause longer soft-body physics merge runs without losing their ongoing session score.
Mid-Game Save and Session Resume
Prior to version 1.2.3, closing the game window resulted in discarding the active run, which posed an issue given the extended length of higher-score attempts. The update introduces session preservation designed specifically as an anti-cheat resume system rather than a rewind mechanic.
- Menu Save and Quit: Players can open the main menu during an active run and select "Save and Quit" to safely store their board state.
- Window Close Auto-Save: Clicking the OS window close button ("X") automatically triggers an auto-save of the ongoing run.
- Resume Session Design: The developer noted that this functionality acts strictly as a session resumption tool. It restores the exact board state upon reopening sobosuba and cannot be used to rewind moves or alter physics trajectories.
Clean Achievement Fixes
The update addresses a bug affecting the game's Clean achievement series. Several players reported that achievements requiring a lone Sobo of a specific size (such as Clean 2048) failed to trigger even when conditions were met.
The underlying bug caused the game engine to incorrectly calculate extra Sobos in the stack, preventing the trigger condition from registering. Version 1.2.3 resolves these false count calculations across all Clean tier achievements:
- clean 512: Have a lone 512 Sobo in the stack.
- clean 1024: Have a lone 1024 Sobo in the stack.
- clean 2048: Have a lone 2048 Sobo in the stack.
- clean 4096: Have a lone 4096 Sobo in the stack.
Typography and Visual Enhancements
Version 1.2.3 incorporates typography updates across multiple language localizations:
- Han Rounded Font Integration: Japanese, Simplified Chinese, and Traditional Chinese now display using the Han Rounded font to better match the visual style of the game.
- Expanded Souba Custom Font: The proprietary
soubafont was significantly extended with contributions from community members daniilik and Noobly Walker via Discord, and is now utilized across most supported languages.
Patch Version History Comparison
The 1.2.x cycle brought several control, mechanical, and localization improvements leading up to version 1.2.3.
| Version | Release Date | Key Changes & Additions |
|---|---|---|
| 1.2 | August 27, 2026 | Added 8 in-game languages; cancel launch by returning arrow to center; shoulder button launching; launching adds velocity to sliding Sobos; friends' live scores. |
| 1.2.2 | August 28, 2026 | Added Simplified and Traditional Chinese; fixed trigger false-fires; disabled automatic language menu popup on startup. |
| 1.2.3 | September 8, 2026 | Added mid-game save and resume (window X auto-save and menu button); fixed Clean X achievement false counts; added Han Rounded font; updated souba font. |
Official Platform Status and Pricing
sobosuba is developed and published by keepeetron for PC on Steam, supporting both Windows 10 and Linux operating systems. The game is priced at USD $3.99 (CNY ¥18.00). In the 1.2.3 announcement, the developer confirmed that a mobile version remains on the project roadmap and is planned for a future release, but is not included in this PC build.
