Rat Royale

Pragmatic Play's Rat Royale is a video slot featuring a 5×5 grid that provides 259 ways to win. Set in a dark, underground realm dominated by rats, the game showcases a gothic fantasy theme filled with gem-adorned rat warriors, stone vaults, flickering candles, and a treasure-laden ambiance. The symbols consist of warrior rats clutching gems in various colors alongside standard royal playing cards. Wilds and Rat King Wilds appear exclusively on the center reel, with standard Wilds offering random multipliers reaching up to x100. Rat King Wilds, on the other hand, can deliver multipliers as high as x500 and possess unique abilities tied to one of four gem types. Each of these gem types has distinct effects: one expands to occupy the entire reel, another gathers multipliers from other Wilds, a third distributes its multiplier across all Wilds, and the last converts specific paying symbols into multiplier Wilds. Landing three to five Scatter symbols activates free spins, granting ten spins in one of three variations: Blood Ritual, Blood Pact, or Blood Lust. Blood Ritual guarantees that every Wild has a minimum multiplier of 2×, Blood Pact secures a Rat King Wild in the center cell for the duration of the free spins while it collects multipliers, and Blood Lust expands the Rat King Wild to fill the third reel throughout the free-spin period. Players can utilize Special Bets to enhance their chances of triggering free spins or to ensure access to the Blood Lust mode, and where allowed, a Bonus Buy option is available for direct entry into free spins. The maximum win potential in Rat Royale can reach up to 15,000 times the stake.

You can play it for real money.