Trek 12 is a roll-and-write alpinism game, with progressive difficulty levels and more. To score points, you have to create chains of consecutive numbers from 0 to 12 and areas of a same number.
A game is composed of 19 rolls of two six-sided dice, with one die having values from 1 to 6, and the other from 0 to 5. After each roll, the player must combine both die values to obtain the number to place.