ROBLOX, the largest user-generated content site in videogames and the #1 entertainment site for kids according to comScore, has released data showing dramatic growth in 2012.

Online multiplayer game Roblox is marketed at children - but there are fears it also being used for grooming.

The expansive world or Roblox can be confusing for casual gamers, curious parents and aspiring developers alike, so we compiled this guide to getting started.