House of Doom is a dark, heavy metal-themed slot inspired by the Swedish doom metal band Candlemass, featuring gothic visuals and a haunting soundtrack. The 5-reel, 10-payline game highlights a random reel on each spin, and any Wild symbol landing on it will expand to fill the entire reel. Landing three House of Doom Scatters triggers the Skull of Doom bonus game, where players pick skulls to reveal cash prizes or trigger Doom Spins. Doom Spins award free spins with expanded special symbols for amplified wins.