I have published a new snaphot for 1.13 that will be available on jenkins https://jenkins.addstar.com.au/job/Minigames/267/ A couple of points - * existing backups of games that included rollback data may need to be re backed up to use the new rollback generator. This needs testing * Configs will no longer accept magic numbers or material data. Most will serealize items and blockdata. * Old configs that contained this sort of data may need manual editing Please post feedback...on spigot discussion thread for now.