MCFrontier – A Minecraft Server With a Completely Custom Gamemode July 23, 2020 Minecraft Server Review Sigmund 0 MCFrontier contains a newly created custom game called CastleSiege. This game has many unique aspects found nowhere else. Some features include custom Clans, Castles, Raiding, PVP, PVE, Maps, Structures, Mines, and Skills! 1.9-1.16 support! Website: MCFrontier.com IP: play.MCFrontier.com Share: Leave a comment Cancel reply Save my name, email, and website in this browser for the next time I comment.