There are 1 repository under crystal-pvp topic.
A discontinued continuation of the Minecraft 1.12.2 player assistance utility mod, GameSense
(Minecraft 1.12) Add an event in Spigot API to listen to players kill a player with EndCrystal | 在 Spigot 服务端中添加一个玩家使用末影水晶击杀玩家的事件
Minecraft 1.12.2 Utility Mod for Anarchy and Crystal PvP [+2]
Source code of Nutgod.cc b1.5 (aka Kami)
The source code of Kami 5 client
Semi-Vanilla CPVP Mod for Fabric