Boardgamegeek https://boardgamegeek.com/boardgame/16747/tumblin-dice
English - A dexterity dice game consisting of four sets of colored dice one either slides, rolls, or flicks down a stepped surface. Usually one slides the die for better accuracy. After each person has slid their 4 dice, points are scored.
Ludovox http://ludovox.fr/jeu-de-societe/tumblin-dice-2583/
French - Un jeu de Randy Nash, Ron Nash.