Some FU guns have ammo or overheat mechanics. Try reloading (default: R ) or holstering/unholstering.
The "Starbound Frackin' Universe Guns Not Working" error is a rite of passage. It usually boils down to , research , or mod conflicts . Nine times out of ten, loading the correct ammo into the side slot solves the problem instantly. Starbound Frackin Universe Guns Not Working Fix
This mod is the #1 cause of broken guns in FU. It tries to add extra detail to descriptions but breaks the firing mechanism of modded weapons. Some FU guns have ammo or overheat mechanics
Frackin’ Universe adds "Vitriolic" (acid) damage and complex elemental resistance. Some guns require a specific "liquid fuel" in your inventory to fire special alt-fires (e.g., the "Slime Gun" requires gel). It usually boils down to , research , or mod conflicts
This is often the fix for players saying, "My guns work in vanilla but not in FU."