Gemhalla

Gemhalla is a video slot by BGaming set in Norse mythology, with Thor and the Yggdrasil tree forming the main theme. The game uses a 6x5 layout with pay-anywhere mechanics, where matching symbols are counted across the reels rather than on fixed paylines. Its RTP is 97.17%, and the slot is classed as very high volatility.

During play, multiplier symbols can appear in both the base game and Free Spins, ranging from x2 to x500. In the base game, values from multiple multipliers are added to that spin’s win; during Free Spins, values accumulate across winning spins and apply to subsequent wins. The Refilling Reels feature removes winning symbols and drops in new ones, allowing for repeated wins from a single spin until no new combinations are formed. Scatter symbols can appear on any reel, and 4 or more trigger 15 Free Spins, with retriggers available when 3 or more Scatters land during the bonus round.

A demo version lets players play for free and practice before playing for real money. Gemhalla also allows players to buy the Free Spins round for 100 times the bet or activate Chance x2, which increases the bet by 25% and raises the chance of triggering the bonus round; the two options cannot be used together. The maximum win is listed at €250,000, with a top multiplier of x5000.