Everyone loves building structures but Roblox is capitalizing on people who love to build games. Its online gaming network already has already grown into the millions of players.

But Roblox is primarily a building game, not a market simulation. The game is physics-based and encourages both building things out of virtual blocks, and using scripting to code how items behave.

Robots and blocks are always lots of fun, both for kids and grown-ups who like to channel their inner-kid. So the combination of the two, in a sandbox, user-generated environment, makes perfect ...