Free the Dragon Slot by Playtech

Start with the Pearl, because it drives most of what's good here. When a glowing Pearl lands, it nudges its entire reel down one position on the next spin, so a single symbol quietly reshuffles what you see. Pearls skip reel 5 completely. Get six or more on screen and the Dragon Feature kicks in, a three-spin hold-and-win played across four reels plus a Super Reel. Every Pearl locks with a value, anything from 1x up to 250x, or one of the four jackpots. Land a fresh Pearl on reels 1 to 4 and your spin count resets back to three. Cover every position on those four reels and you free the Dragon: one spin of the Super Reel that drops extra cash, a jackpot, or a multiplier from x2 to x25 that hits all the locked Pearl values at once. That multiplier is the real reason to chase the round.

Free games run off a separate symbol that only appears on reel 5, each one carrying a number from 1 to 10. Land three and your free games equal their combined total, so the trigger can hand you a short round or a long one. During the round, locked cells sit above and below the reels. Green Keys pop the top cell for a multiplier up to x100 on that spin's wins. Red Keys open the bottom one, which pays out extra spins, cash, or a jackpot. Every cell relocks at the start of each free game, so you're re-earning the keys the whole way through.

The four jackpots are fixed, not progressive: Grand at 1000x, Major at 100x, Minor at 25x, Mini at 10x. There's also an Extra Bet that raises your stake by a quarter to fatten the reel-5 symbol values, which tends to buy you more free games. It leaves the paytable untouched. The Wild stands in for everything except the Pearls and the free games symbol.

Visually it's a storybook kingdom: green hills, misty mountains, a white turreted castle, with a gold dragon squaring off against a blue-armoured knight and a golden-haired princess holding a magic sword. It's pleasant enough, if a bit generic for a dragon slot.