( Grandpas Gun Chest x Grape Cream Cake ) Grandpa's RPG is an indica-dominant hybrid created through crossing Grape Cream Cake with Grandpa's Gun Chest. This strain has a rich musky flavor with overtones of earth. The aroma is just as funky with notes of skunk and a woodiness throughout. Grandpa's RPG is known for its calming and sedative effects that make it perfect for unwinding in the evening or relaxing on a lazy day off. Grab your favorite snacks, turn on a movie, or grab a good book, and get ready for chill.