Other Games A story about my uncle

This game was on sale on Steam a few days ago, and I decided to get it. I had it on my wishlist for a while and it looked really cool. It's a game about freerunning with a grappling device and later in the game, rocket boots. Has anybody played this game, and if so, what do you think of it?

 

It's a game.
Hence posted in "Other Games."

 

Your point is?

 

So... Gabe Newell is your uncle?