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RTP Grim Muerto by Play'n GO is a five-reel video slot with a Day of the Dead theme and fantasy-mythology styling. The game uses 20 fixed paylines and is listed with low-to-medium volatility, with an RTP range shown between 84.64% and 96.51% in available game data. Players can use the demo version to play for free and practice before playing for real money.
The slot features a Mariachi band that remains part of the presentation throughout the game. During the Marco Siniestro feature, highlighted reels appear and can expand the Guitar Wild symbol, creating additional winning combinations. A Second Chance feature also allows players to click a Mariachi Band member to reveal a prize.
When all three books open, El Libro de los Muertos unlocks free-spin rounds, with between two and five reels highlighted and an extra Wild able to appear. The release date is 11 July 2016, and the game includes bet options from 0.2 to 100.
