ogl-content
There are 4 repositories under ogl-content topic.
opengamelicense/awesome-ogl
A curated list of recommended projects that use/license Open Game Content
sethwoodworth/crawl-classic
Dungeon Crawl Classics RPG tables
grislyeye/three-meet
A low-fantasy 5E hack for troubled times.
mikelson/combat-q
This program keeps track of when characters act in a d20 System or Dungeons and Dragons combat. It also keeps track of when spells expire.