This weekend I've wrote a dice game that can be played against many player or computer opponents.I might have gone overboard here and there, but with few tweaks it should be a good fit for many types of renpy games.
you can download the game from the attachments:
A simple dice game with a variable number of player or computer opponents. Like always, the code will be exclusive to my patreon for a while before I release it on github: https://www.patreon.com/posts/51602788