1.21.11 Lightweight Minecraft server
Mech Station Beta - Tower Defense like Game
Purpur is a drop-in replacement for Paper servers
A performance profiler for Minecraft clients, servers, and proxies
Java Settlers
Customizable and compatible open source server for Minecraft
A mobile game distributed server implemented using netty4.X
tiny code, html webcam game or plug brain in each blob, java server
Battleship through network
chess library in java, PGN, FEN, ICS
The next generation mud is an open-source extensible, programmable mud