Mini Games on Minecraft Realms (work in progress)
“Minecraft Realms” is Mojang’s Minecraft server service, currently available in Sweden and with Minecon vouchers.
This video clip quickly demonstrates how you will be able to switch your Realm to a mini game, without the need of resetting your world. This feature will be included in the 1.7.5 update, coming in March 2014.
Everything is work in progress!