House of Doom — RTP, volatility and max win

A cursed castle is the stage for House of Doom by Play'n GO: skulls, witches and demons fill the reels against a dark blue and violet night sky. Wins land on fixed paylines, and scatter symbols open the free spins round, where the wild does most of the heavy lifting.

House of Doom came out on June 13, 2018 and is one of the older horror titles from Play'n GO. The symbols come straight from the paranormal: skulls, witchcraft and demonic figures take centre stage instead of fruit. The layout is a classic, easy-to-read 5×3, and 10 paylines decide the payouts. Cautious test rounds start at €0.10, and big bets go up to €100.

A payout needs matching symbols from the left on a single line; there are 10 paylines in total. With only three rows, every line is easy to follow. Scatters are not tied to a line and count wherever they land on the reels.

Substitutes: separate substitution symbols join the wild in both the base game and the bonus.

Scatters: the scatter symbols are the key to the bonus. Land enough of them at once and the free spins round starts.

Free spins: during the free spins the reels keep turning at no cost, and this is where the bigger hits come from. It is the game's only bonus round, and the scatters are the only way in.

Because the free spins are the only bonus round in House of Doom and the big hits land there, it is worth comparing them with other inferno slots with free spins.

RTP 94.1%. Background: how RTP works on a slot. Volatility High, like 66 of the 114 slots in the Demon theme. Background: what slot volatility means. Max win 2,500× (€250,000 at the highest stake). Background: what max win means on a slot.

House of Doom returns only 94.1%, which ranks in the bottom tenth of the Inferno slots and sits well short of the typical value in the collection. If a high return matters to you, keep that in mind.

For a ten-line game, 2,500× is a solid ceiling, with roughly 30% of the collection sitting lower. Volatility is high, and the big amounts depend on the free spins.

Because the casino decides which return version of House of Doom it runs, it pays to check the version in use against the RTP of inferno slots.

Akin to House of Doom: slot games with identical high volatility, demons and an almost equal RTP.