Hock
Member
It's F2P and its freaking fun as hell! The Devs update the game on a weekly basis and are always tweaking and reviewing each individual heroes performance. They also closely listen to the player base on suggestions and comments. You can either buy additional heroes other than the 5 starter ones or earn them through currency dropped in the game. So far I started with Storm who is a beast and got Hulk out of a random hero box bought with the ingame currency.