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Features Undefeated Xerxes is a 5-reel video slot from Play'n GO, released on 22 February 2024 and set against a Greek mythology backdrop. The game follows the conflict between King Xerxes I and Leonidas at Thermopylae, with symbols and visuals built around the Persian army, Spartan defenders and battlefield imagery.
The slot runs on a 5×4 grid and uses 30 fixed paylines, with high volatility shaping the pace of play. Its main features include Wild Frames, which can appear before the reels stop and turn any symbol in position into a Wild, plus upgraded Frames that add Wild multipliers. During the base game, two Scatter symbols may be guaranteed on the first two reels, supporting access to the bonus round.
Landing three Scatters awards 10 free spins. In the free spins round, Wild Frames lock in place once triggered, while the tenth free spin adds a final assault feature where all framed positions become Wilds and upgraded frames receive random multipliers. A Hero Symbol in this round can carry a x25 multiplier. The demo version allows players to play for free and practice before playing for real money.
