Cribbed from BGN: Keltis: Das Kartenspiel has 110 cards and will retain the Keltis card-play: Players have a hand of cards, playing or discarding one card each turn on piles of the same color then drawing one card. Each of the five colors includes two 'finishing cards', and these cards can be played on a stack of the matching color at any time, after which no further number cards can be added to that stack; once five finishing cards have been played, or the deck has been exhausted, the game ends. Keltis: The Card Game is based on Keltis (the board game), also known as Lost Cities: The Board Game, based on Lost Cities (the card game). But note, Keltis: The Card Game and Lost Cities are two similar but ultimately different games.