Avalon Gold

Six reels open at four rows high and grow taller with every consecutive win in Avalon Gold, Elk Studios' eighth entry in its Gold series, sending its returning explorer character Kane to the mythical isle of Avalon rather than one of the studio's usual real-world locations. A sacred stone structure sits behind the grid, visible whenever symbols tumble away, under a Celtic-flavoured soundtrack. Ways to win start at 4,096 and climb to 262,144 once the board reaches its full eight-row height.

Stakes run 0.20 to 100 a spin, volatility is rated high, the RTP is 94%, and the maximum win is capped at 25,000x the stake.

Wins clear from the board and drop new symbols in via the Avalanches mechanic, adding one extra row each time a win keeps the chain going, up to that eight-row ceiling; the grid resets to four rows once a spin stops paying. Big Symbols can land across 2x2, 3x3 or 4x4 blocks, counting as that many single-tile hits, and any empty tiles opening beneath one are refilled with matching symbols. A gold-framed tile signals an Expanding Wild — when the space above it clears, expanding wilds fill the gap.

The paytable runs four card-rank lows (J through A), four animal-themed mid symbols, and a top tier of three masks below Kane himself as the highest-value tile, worth 2x to 5x the bet for six of a kind against 0.3x for the lows and 0.8x-1x for the mids. A gold wild covers every position except the scatter and Mystery Box tiles.

Mystery Boxes sit on the grid as blockers until five or more are in view, at which point they open together to reveal coins, a wild, a paying symbol, or one of several Avalon effects: a straight coin multiplier, a Swiper that tacks a digit onto the front of an already-revealed coin value, a Collect that banks every coin shown and reactivates the boxes that produced them, or a Redrop that adds another symbol fall with guaranteed box reactivation.

The bonus, Free Drop, opens on three scatters for ten free drops, rising through four scatters for fifteen, five for twenty, and a full six for twenty-five, with unopened Mystery Boxes carrying over between drops rather than clearing. The feature grid starts at four rows too, but its ceiling — the safety level — climbs by one row after every winning drop, so a hot run pushes the board toward the full eight rows faster than in the base game, and landing more scatters during the round extends it on that same scale. Its X-iter menu buys a guaranteed Big Symbol into one drop for 5x, a guaranteed Expanding Wild for 10x, five guaranteed Mystery Boxes for 50x, straight entry to Free Drop for 100x, or the same bonus with Mystery Boxes locked open throughout for 500x.