Excalibur Unleashed Slot by Pragmatic Play

Wild symbols that land on reel one or reel five expand to cover that entire reel, turning all five positions into wilds. Each activated wild reel carries a random multiplier. Both edge reels can fire in the same spin, applying two independent multipliers at once.

The free spins feature builds directly on this mechanic. Wild reels that appear during the bonus become sticky, holding for all remaining spins rather than clearing. Each time a stuck wild reel contributes to a winning combination, its multiplier increases by 1x. The multipliers on held reels continue compounding for as long as the feature runs, with later spins benefiting from the accumulated values of all locked reels.

Buy access to the free spins is available at 85x the bet. The edge-reel wilds also fire in base play on any spin, so the expanding wild mechanic is present throughout the session, not only in the bonus.

The cast is entirely anthropomorphic - a white mouse mage, a purple-hatted witch-cat, and an owl wizard serve as the highest-paying symbols in a sunlit enchanted forest setting. The Excalibur sword in stone stands at the left of the reels as a persistent visual anchor.