Amazing Multiplayer, Free-to-Play, Diverse LoL will keep you coming back again and again.
LoL is a multi-player RPG/RTS tower assault hybrid more focused on the RPG aspect.
The good:
FREE (unless you want to pay money for micro-transactions that are for the impatient)
Graphics are great for free
Well balanced
Mostly good community
Not a system hog
Over 40 Champs means the game does not get stale
Items in game make it possible to play many different styles
The not so good:
No in-game voice chat (solved with vent but kinda annoying)
Matchmaking is rough sometimes
Sometimes it gets too competitive and people will have really bad sportsman ship
Sometimes one person can be the downfall of either team.
Sucks up your life.
The collector's edition sells for $20 and comes with 20 champs (which if you were to buy would cost about $40) alone and comes with $10 worth of in game cash.
Get this game, you wont regret it.