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 9149cc565e Hub turns off flight (people were staying in flying somehow) ... Spleef block damage fix Smash kit balances		2013-09-02 08:16:35 +10:00
Maps	Bob wants to play!	2013-08-29 15:55:49 +10:00
Nautilus.Core.VoteHub	Initial Commit	2013-08-27 08:14:08 -07:00
Plugins	Hub turns off flight (people were staying in flying somehow)	2013-09-02 08:16:35 +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	Added LobbyBalancer for BungeeCord	2013-08-30 01:36:55 -07:00