Roblox is gaming's quiet giant — and it's only getting bigger

We all know that League of Legends is huge and that all the kids are playing Minecraft, but another hit has built up a mammoth audience without drawing a lot of attention from outside its dedicated fan base.

At its peak, Roblox has had 161,200 concurrent players all logged in at the same time. That’s more than the all-time peak for zombie co-op shooter Left 4 Dead 2 (161,000), and it’s just behind shooter Counter-Strike: Global Offensive (170,000). What’s amazing is that Roblox, which is a free-to-play game where anyone can create games in a Lego-like world, is still growing quarter after quarter despite that it debuted in 2005. The Roblox development team released a blog today that compares its success to some of the biggest hits on Valve’s Steam digital distribution network, and it reveals Roblox’s amazing staying power.