Use your operating system’s file search. If you cannot find it, launch FlightGear once, join a multiplayer session (e.g., the MPServer01), then exit. The file will be created.
This article provides a deep dive into what fg-optional-mp-files.bin is, why FlightGear creates it, whether you can delete it, and how to troubleshoot common issues related to it. fg-optional-mp-files.bin
When downloading repackaged video games, modern software installers, or large modification packages, you will often encounter highly specific archive files. One such file that frequently causes confusion for users is . Use your operating system’s file search
Non-essential heavy assets like 4K texture packs, developer credits, or multiplayer elements. This article provides a deep dive into what
| File | Purpose | Can delete? | |------|---------|--------------| | fg-optional-mp-files.bin | Multiplayer aircraft models (3D & textures) | Yes | | terrasync_cache/ | World scenery (terrain, buildings, airports) | Yes (but will redownload) | | fgcom_voice.db | Voice chat audio recordings | Yes (loses voice history) | | .fgfsrc or autosave.xml | User preferences and joystick bindings | No (loss of settings) |
Language voiceovers (e.g., fg-selective-english.bin ).
To optimize your storage, you can deselect this file before downloading the repack contents: