Chex Quest, made by Digital Café, is a total conversion of The Ultimate DooM. It was released in boxes of Chex Cereal in 1996, becoming the first game to be included in a cereal box. When it was released, it increased sales by over 200%. It then went on to win both the Golden Reggie Award for Promotional Achievement, and the Silver EFFIE Award for Advertising Effectiveness.
By CQ75. This is a working multiplayer mod for Chex Quest 3 on the Zandronum engine. It works on Zand with no additional pwads, this mod is currently hosted on these servers. This mod does not work with (g)zDoom.