Go in the Map Editor and make a Large and High Island Generation.

Put the spawn, choose the gamemode, select Team Deathmatch for colors or Deathmatch for grey.
Click on the gear to do a modification on the choose gamemode.
Click on everything but not the shovel and the blocks.

After your gamemode is ready if you do everything correctly.

Go to "Choose a match" and create a server, put your map, add a password if you want. When you have youre server and your map ready you can play with your friend and have fun !!

Now some screenshot to show you things you can do (if you have a friend ^^) :

Explore and mine :

Chop some tree :

Build blue and red house :

And don't forget have fun :


I hope this guide help you a little. Bye