Unity is a multiplatform game development tool, designed from the start to ease creation. A fully integrated professional application, Unity just happens to contain the most powerful engine this side of a million dollars.
This engine was used to create such epic games like Slender or Insert Title Here (that seriously is the name of it, xD ). It has been manipulated in various ways to get different results, with Slender: The Arrival being my most awaited of them all.
Anyways, this engine has a lot of potential to become as big as Unreal Engine in the future (or not xp ). Or maybe close to RAGE (Rockstar Advanced Game Engine).
To close this review up, I give this engine a well deserved 10 out of 10.
(P.S. Insert Title Here is really epic, play it)
(Oh yeah, so is Slender: The arrival (its not free, but u can pre-order and get the beta version which kicks ***) ).
YOLO (oops, this isnt 2k12)