Troubleshooting on Steam Deck

Your save folder is ~/.local/share/FasterThanLight/.

Check Steam Cloud first

On the Deck this is the most common cause of a broken install. Right-click FTL in your library, open Properties, and untick Keep game saves in the Steam Cloud.

My game complains about -opengl

Stop passing the -opengl flag. It was removed in Hyperspace 1.5.0 and is no longer needed.

My game crashes before loading Multiverse

Make sure you are on the latest Hyperspace. The Multiverse installer is frequently behind, and this is by far the most common cause.

If you are on a laptop with both integrated and dedicated graphics, try forcing FTL onto one or the other. Otherwise your save file is probably corrupt, see below.

My game hangs on the last E in Multiverse

Your save file is corrupt.

My game hangs while loading but I can hear music

Your save file is corrupt.

Resolving a corrupt save file

1. Find your save folder and locate hs_mv_prof.sav and hs_mv_version.sav.

2. Delete hs_mv_version.sav.

3. Move hs_mv_prof.sav somewhere else. Do not delete it.

4. Launch the game, let it reach the main menu, then quit.

5. Move your original hs_mv_prof.sav back, replacing the one the game just made.

Still stuck? Ask in the Hyperspace channels on the Multiverse Discord.

Nothing worked

Delete the entire ~/.local/share/FasterThanLight/ folder and start fresh.