Roblox

Roblox is gold!! The awesome game creator is in the web! Create places,chat with friends online...Also there is a version to test Roblox named Gametest2.

Roblox added a paid access to games (custom)

Badges and BC
Badges are a good system,but then,BC,TBC and OBC,the premium services can make badges!

Robux and Tickets
Epic money of roblox. 10 Tix per day and then you can trade tickets for robux or vise versa.