This is a plugin created for all the people who want to setup a Minecraft server with easy protection regions like WorldGuard for Spigot/Bukkit. This plugin runs with simple commands and is very similar to the already quoted WorldGuard. If you find some bugs please let me know in the discuss session, on the issues tracker or in the Plugin releases thread linked below. Currently available for Minecraft 1.10.2, 1.11.2 and 1.12.2.
Check the wiki to know how the plugin works at: https://github.com/JimiIT92/UniverseGuardAPI7/wiki/