Shroom Siege, the team-based arcade action platformer from developer Upside Down Bird, brings fungi to the bug battle with two new maps in a brand new demo on PC via Steam and Xbox Series X|S, beginning Monday, 8 Sept. 2025.
Take control of insect warriors to duke it out and secure one of three victory conditions. Destroy the enemy Shogun thrice for a Shogun victory, deliver sacred objects for a Shrine victory, or drive a dung ball across the map for a Poop victory. Work alongside teammates to foil enemy plans in two brand new maps, and quickly gain mushroom mastery with Shroom Siege’s low barrier to entry, simple control scheme, and satisfying skill ceiling.
