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 395a5d2c08 MAC disabled with Tournament Mode ... Bridges TM game desc fix		2014-05-03 11:47:15 +10:00
Maps	Enabled DoubleGem weekend.	2014-03-14 02:19:52 -07:00
Plugins	MAC disabled with Tournament Mode	2014-05-03 11:47:15 +10:00
TexturePack	Initial Commit	2013-08-27 08:14:08 -07:00
Webserver/ServerHandler	Initial Commit	2013-08-27 08:14:08 -07:00
Website	Upgraded to latest spigot.	2014-04-25 00:44:14 -07:00
.gitignore	Sheep Quest	2014-03-01 10:35:06 +11:00
UNDANGLE THEM BLOBS.bat	Xmas Game	2013-12-21 10:17:22 +11:00
putty.reg	depr deprerer	2013-11-06 01:04:17 -08:00