Tumuli Shroomaroom is the second full length studio album from Welsh stoner rock/doom band Acrimony. It was released in 1997 on Peaceville Records, and is the follow-up to their 1994 Godhead Records release, Hymns To The Stone. Allmusic's Eduardo Rivadavia gave the record 4.5 stars, and called it "of the all-time classic stoner rock albums ever" and also said that it "makes for remarkably immediate listening, unveiling its otherworldly glories to all those who dare enter the mushroom."