hotfix · September 5, 2026

Bus Simulator 27 Patch v1.09 Targets Save Corruption and Crashes

Version 1.09 for Bus Simulator 27 introduces save recovery tools, startup stability fixes, and general performance improvements. The patch arrives as pre-access continues, while developers investigate ongoing traffic logic errors at junctions.

Bus Simulator 27 receives its second pre-access hotfix with version 1.09. This update focuses heavily on technical stability, targeting save file safety, crash origins, and overall performance while the development team investigates separate traffic right-of-way bugs.

Save System Hardening

The update improves save system reliability and adds recovery measures for affected files. Savegames created on version 1.008 or newer that were previously broken can now be restored in additional scenarios. New safeguards are also in place to lower the risk of future save file corruption.

Stability and Performance

Version 1.09 addresses multiple crashes and applies stability improvements. Developers implemented performance optimizations alongside minor fixes reported since pre-access launch. A new DirectX 11 start option is available to prevent crashes during game startup.

Known Traffic Issues

Developers acknowledge ongoing problems with traffic behavior at junctions, roundabouts, priority roads, and left turns where vehicles miscalculate right of way. These issues remain unpatched in version 1.09, but the team confirms that traffic system improvements are planned for upcoming updates.

Why this patch matters

Version 1.09 gives players recovery options for saves and startup stability, though drivers must continue dealing with junction traffic issues until a future patch arrives.