How it plays
Moon Princess, released in July 2017, is the anime-styled grid slot that defined a Play'n GO house formula. Wins form from three or more matching symbols in a row, horizontally or vertically, on a 5x5 grid; winning symbols clear and new ones cascade in, with the centre of each win turning into a wild. Bets run €0.20 to €100.
It carries a 10/10 volatility rating on Play'n GO's scale and a maximum win of 5,000x the stake.
Bonus features
Three princesses — Love, Star and Storm — rotate above the grid. On non-winning spins the active princess can intervene: Love transforms a symbol set, Star adds wilds, and Storm removes two symbol sets.
Clearing the entire grid, or filling the Girl Power meter, leads to free spins where you pick one princess: 4 spins (Love), 5 (Star) or 8 (Storm), each retriggerable. In free spins the cascade multiplier climbs to 20x and does not reset between spins — the engine behind the 5,000x cap.
RTP versions
The top configuration returns 96.5%. Play'n GO supplies lower operator settings (versions around 94.51% are commonly surveyed), so the active RTP varies by casino and is listed in the game rules.
Verdict
Moon Princess is one of Play'n GO's most influential games — its grid, princess powers and persistent free-spins multiplier were reused across Rise of Olympus and a family of sequels (Moon Princess 100, Trinity, Stargazing). High volatility and full-grid-clear chases keep it a streamer favourite years after release.
