id Software for Doom, Randy Heit for Zdoom, LilWhiteMouse for misc. coding tips, Froon for the bow, and Zippy for the neato rain effects (and solarsnowflare for his improvements.)
Base:
From scratch.
Build time:
~5 months; ever since I started coding again.
Editor(s) used:
Bugs:
Any that I happened to stumble across were either fixed or turned into 'gameplay features'.
Music blatantly stolen from: -> Perfect Dark Zero (thanks for looping the music, DomRem!)
Graphics blatantly stolen from: -> Legend of the Seven Paladins -> Shadow Warrior -> Witchhaven -> Hexen -> One of the WRW's -> Several others, their names lost to the mists of time