The first commercial game I ever played. After my middle school friend gave me a copy of Ultimate Doom, Doom 2, and Final Doom, I was hooked instantly. This game (and it's mods) hold a very special place in my heart. It sparked my imagination through art and other means. Was able to breeze through all three episodes in one day today, while I think the third episode is a little weaker, this as a whole was still a blast to play through.