Troll Haven is a Scandinavian fairy-tale slot from iSoftBet, released in 2018. The game draws on the troll mythology of Nordic folklore — mossy forest creatures, giant mushrooms, rune stones, and enchanted woodlands — and frames it around a multiplier wild free spins mechanic that gives the bonus genuine mathematical teeth without requiring a complex feature structure.

The game runs on 25 paylines across a 5-reel grid. Bets range from $0.20 to $100 per spin. The visual design leans into the whimsical end of Scandinavian folklore rather than the darker interpretations, presenting trolls as awkward forest inhabitants rather than threats — a tonal choice that makes the game approachable without trivialising the source material.

Scatter mushroom symbols trigger Free Spins when three or more land on the reels. The distinguishing mechanic of the bonus is the multiplier troll wild: wild symbols that appear during free games carry attached multiplier values of either 2x or 3x. Crucially, these multipliers are not simply applied to the wild symbol’s own position — they transfer to any win the wild helps form across the paylines it covers. A 3x multiplier troll wild sitting in the centre of a multi-line winning combination triples the value of every line it completes. When two multiplier wilds participate in the same win, their values combine, producing 4x, 6x, or 9x total multipliers from a single spin.

Troll Haven returns 96% RTP at medium-high volatility, with a maximum win of 3,000x the bet. No Bonus Buy is available.

Troll Haven is a medium-high volatility slot where the multiplier wild mechanic does real work in the free spins. The 2x/3x combination multiplier potential gives the bonus a genuine ceiling, and the folklore theme is executed with enough craft to hold interest. A well-considered release from iSoftBet’s mid-period catalogue.