Serpent Shrine

Only part of Fantasma Games' 5x7 grid for Serpent Shrine is playable when a spin begins, with the remaining tiles locked behind blockers that get cleared as the round develops. Ways to win start at 108 and grow to 16,807 once the board is fully open, so a single spin's payout range depends on how far those blockers have already been cleared.

The setting is an underground world of gnarled trees, rock formations and glowing flora, framing a story about explorers drawn back to a hidden treasure guarded by a giant snake. Mining tools and maps sit at the bottom of the paytable, coloured minerals fill the middle, and the explorers themselves return as the top regular symbols once the story turns, worth several times the stake for a full line. A golden wild substitutes for any paying symbol to help complete a combination.

Two mechanics drive the unlocking. Landing a Butterfly Wild in a winning combination sends it to three random locked tiles, opening them and granting a respin, and further Butterflies on that respin keep the sequence going. A separate Bomb symbol occupies a blocker tile from the start of the spin, and if a Butterfly Wild lands on it, the bomb clears an entire row or column of neighbouring blockers and drops a fresh Butterfly onto the board for the next respin.

Clearing the whole grid this way triggers Snake Free Spins: five spins on the complete 16,807-way board, during which a multiplier rises with each spin, from x1 through x2, x5 and x20 up to x100 on the final spin as a snake descends the reels. If three Butterfly Wilds land while the snake is still active, it is killed off early and two Super Free Spins follow, both played on the full grid with the x100 rate already in place.

Fantasma Games rates Serpent Shrine as high volatility, with an RTP of 96.53% and a hit frequency around 23.37%. Stakes range from 0.20 to 50 per spin, and the maximum win tops out at 10,013 times that stake, a figure that is only realistically in reach once the Super Free Spins have been triggered.