If you are reporting an issue with a version of Factorio downloaded as a .rar from an unofficial source, developers may not be able to provide support. Ensure you are using the official version from Factorio.com or Steam for a valid report.
A high-quality report must be actionable, meaning a developer can understand and reproduce the issue without further follow-up.
Released on March 3, 2023, version 1.1.77 was a stable update focusing on bug fixes and modding API additions: Factorio v1.1.77.rar
If the bug is specific to a certain setup, attach a save file where the bug is reproducible.
When submitting to the Bug Reports sub-forum, use the following template: If you are reporting an issue with a
Resolved memory corruption when saving under Linux with async saving enabled, and fixed various script-related crashes.
Include the version number in square brackets and a brief description. Example: Game crashes when opening the locomotive GUI . Released on March 3, 2023, version 1
Added command-line flags like --dump-data and --dump-icon-sprites to help modders export game data to JSON.