The source code from mineplex 2018 leak with commit history dating back to 2014, it requires a lengthy setup to get functional but is a reasonably easy compile if you know what your doing just have to repatch the spigot

Chiss 768f57ae5e SSM: Added Wither Skeleton and Creeper kits ... Compass: no longer teleports if not holding compass (on click) SSM: various balance changes.		2013-09-05 13:55:42 +10:00
Maps	Bob wants to play!	2013-08-29 15:55:49 +10:00
Plugins	SSM: Added Wither Skeleton and Creeper kits	2013-09-05 13:55:42 +10:00
TestApps/LOCTester	Initial Commit	2013-08-27 08:14:08 -07:00
TexturePack	Initial Commit	2013-08-27 08:14:08 -07:00
Webserver/ServerHandler	Initial Commit	2013-08-27 08:14:08 -07:00
Website	Cleaned warning.	2013-09-03 14:10:14 -07:00