Top 5 ttrpg open source projects

The Ultimate Collection of Open Content for TTRPGs

ApocaBot: A Discord Bot for PbtA Games

A TTRPG conversion of the Guild Wars Games.

Timeline Tree of Tabletop Role-Playing Games, celebrating more than 40 years game design innovations

Ironsworn rules data for use in community-created tools, because there's no use in duplicating labour on the data entry.