Referee is an updated, extended and re-written version of UHC-Bot. Referee is focussed on managing Mighty Mainframe, a gaming community focused around organising events.
Main features are:

• Auto joining a Game Event by using a command or by adding a reaction to a message
• Auto generating needed metadata lists for games
• Rank system with awarded roles for winning events
• [WIP] Fully functional web dashboard

Code is available here and the bot can be seen in action here