"It's an adrenaline dump the first time you see that monster coming through the woods toward you, " he said.

CNN: Biggest danger for hunters? Heart attack, not stray bullet

Big group events like monster battles and raids keep users coming back for more.

FORBES: Startup To Success: Social Gaming And 5th Planet Games

Like the Loch Ness monster, those PAAF bonds keep coming up.

FORBES: Magazine Article

In the coming months, Monster Worldwide Inc.

WSJ: Recruiters Change Employee-Hunting Tactics

With Monster World, Wooga has kept fans coming back long after a game launches.

FORBES: Wooga Ramps Up Mobile Strategy With New Android, iOS Titles