Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
Purpur is a drop-in replacement for Paper servers
1.21.11 Lightweight Minecraft server
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A performance profiler for Minecraft clients, servers, and proxies
Solve Go problems (based on GoGrinder GoGrinder.sf.net )
Massive Multiplayer Online Wargame Leveraging the Internet
Neo Modding API for Minecraft: Java Edition, based on Forge
Modifications to the Minecraft base files to assist in compatibility
Easy YGOPro puzzle editor
Old School gaming tool for GMs of AD&D/OSRIC.
Open Source
A software to craft easily your own Minecraft mod, without coding
The next generation mud is an open-source extensible, programmable mud