Final Duel is a Doom mod for the Dis GZDoom fork.
Launcher Source: -- This has been moved to https://github.com/Doom2fan/Chronos-ZDoom-Launcher --
PK3 Source: The PK3's source.
Script Source: The mod's ACS source code. Use the ACC exe in Tools\ACC to compile this.
Tools: Final Duel related things...