Boardgamegeek https://boardgamegeek.com/boardgame/9092/avalam
English - Score the most points by building "towers" made of 1 to 5 pieces with your own color on top. Stack any piece or combination of pieces on any adjacent piece of combo. Each color on top scores one point.
Ludovox http://ludovox.fr/jeu-de-societe/avalam-3199/
French - Un jeu de Philippe Deweys.