So me and Moka have been mentioning a internet game called Minecraft
Its so basic yet so perfect and addicting, once you get into it you can got locked for hours and basically build..... anything
Here is the link : http://www.minecraft.net
It does cost money (like all games) but its cheap its fun and a laugh especailly if you can get on a server with friends and buidl together which is exactly what me and Moka did
Here are pics of my base that I constructed from scratch