WHAT?! Sierra Founders are BACK w/ a NEW GAME?! (Colossal Cave 3D) 1 min read Featured PC Games Special Episodes WHAT?! Sierra Founders are BACK w/ a NEW GAME?! (Colossal Cave 3D) MetalJesusRocks April 15, 2022 Ken & Roberta (Sierra On-line founders) discuss their upcoming Colossal Cave 3D adventure game...Read More