[1] It is recommended for 2-6 players, and the play time can be anywhere from 5–10 minutes.
The game includes a 12 sided die, 18 glass marbles, and a set of rules.
[3] Each player takes three glass marbles to represent sanity, and the rest of the tokens are set aside.
A person will cast the die, rolling it against another player, causing him/her to lose or gain sanity.
Cthulhu Dice uses many signs on the custom die that represent moves of the players.