Magic Oak Slot by Habanero

The wisps are the part worth tracking. Two colors of glowing orbs drift across the 4x4 grid at random during base play - they don't form wins themselves, they just land in a side meter and accumulate across spins. When enough have been collected, a batch of them transforms into Wilds on the next spin, dropping into the cluster grid as substitutes for whatever group they touch. That's the bridge between dry spins and big cluster events here. The collection runs across sessions because the game is stateful, so the meter doesn't reset when you close the demo.

The base mechanic is cluster pays, which on a 4x4 grid means any group of touching matching symbols pays as a unit regardless of position - no left-to-right reading, no payline geometry. Magic Oak makes the cluster math more aggressive than most by giving the Wild a group-substitution rule. Instead of replacing one icon at a time, a single Wild can substitute for an entire adjacent cluster of paying symbols, so a Wild dropping into a chain of partially-matched fox roundels can close it into one large paying group. That rule plus the wisp transformations is where the 6,250x ceiling lives - the headline figure on max bet works out to a million-coin-style payout that reviews sometimes quote as the absolute coin total rather than the multiplier.

Free spins trigger off 4 or more scatter symbols landing anywhere on the grid, but the round length isn't flat. Each scatter contributes 2 to 4 free spins, so a four-scatter trigger gives somewhere between 8 and 16 spins depending on the per-scatter roll, and a five-scatter trigger pushes well past that. The wisp collection and Wild rules carry into the bonus unchanged. There's no buy-bonus shortcut anywhere on the UI and no ante-bet either, which keeps the game's only feature path running through the scatter trigger plus the slow wisp accumulator.

Visually it's a deep autumn-evening forest scene rendered in painterly pastels. Red squirrels with bushy tails, a stern-looking horned owl, blue-furred rabbits wearing tiny round glasses, a raccoon in a green collar, and an orange fox sit inside wooden circular medallions as the high-pay woodland creatures. Card suits stand in for the royals - chunky red hearts, green clubs, magenta diamonds, blue spades - all rendered as carved wooden tiles rather than painted card pips. The grid itself sits inside a twisted oak-branch frame growing organically around the play area. A wooden Grand Jackpot signboard hangs from a branch on the right side of the cabinet displaying a live four-digit euro counter. The forest behind it fades into deep purple twilight with magical haze drifting through the trunks.