FOSS
I'm thrilled to see so many posters using FOSS. My whole suite for my first LD is FOSS, with the exception of BeepBox, which is a free online composition tool for 8-bit sound. Close enough to FOSS to be worth using.
Weapons of choice are Fossa (Ub20LTS), Blender, GIMP, Audacity, BeepBox, SimpleScreenRecorder and PulseAudio.
Can you hear the war drums? Only a few moments remain. Good skill to you all; luck has no power here.