- verge.exe - because it runs your game
- verge.cfg - holds resolution settings and other info necessary to the engine.
- fmod.dll - to run music and sounds, even if you don't use any.
- *.vc - if you're an open-source kind of guy.
- system.xvc - if you're a code hoarding type who uses "releasemode 1" in their verge.cfg
- Any files required by your code.