When you get to the Horror Hotel slot, you will see a 6x6 cluster grid that accepts from 5 to 35+ of the same symbols, which are placed next to each other horizontally or vertically. Also, when you get a winning combo, these symbols will be removed and replaced by mystery values and they will trigger a re-spin. Next, determine the bet per spin from 0.10 to 50. Horror Hotel by Relax Gaming will be held with an RTP of 96.17% and high volatility.
The lower paying symbols are potion bottles in red, green and blue. If you land 35 or more of the same symbol type in a cluster, it pays 500X the bet. The higher paying symbols are a mummy, a werewolf, Frankenstein and Count Dracula himself. If you land 35 or more of the same symbol type, it pays between 1500X to 5000X the bet. The game's wild symbol consists of a golden W and when you create a win, the mystery symbol will be created with a golden question mark. The scatter symbol consists of a skull and if you land 3 of them simultaneously, the bonus game is activated.
Free spins are awarded by collecting at least 3 scatter symbols on a single spin; 3 scatter symbols award 5 free spins, plus 1 additional free spin for each additional triggering scatter symbol. While free spins are active, landing a scatter symbol awards +1 free spin. During the round, an increasing number of wild symbols land; 1 wild appears on the first spin; then, an additional wild symbol is awarded for each following free spin. Also, a win multiplier is added for the bonus. This multiplier increases by +1 following each cluster win and only resets when the round ends.