I may only have a small amount of time racked up on here, but rest assured I've sunk many hours into Hidden in Plain Sight on the Xbox 360 version, and man am I glad to see it here on Steam too. Hidden in Plain Sight is a collection of five minigames, all of which are best played with four players, right there at in the same room as you. They all insanely fun (Ninja Party is my favourite) and rely on you keeping your cool as others try to reveal and capture you, while at the same time, you're trying to capture everyone else.
Ninja Party, for example, has 2-4 players all as identical ninjas, amongst 30 other identical ninjas. Each player must either be the last one standing by eliminating the other players, or by touching 5 statues scattered around the room, which play a sound each time they're touched. Do you run straight for all the statues, aiming for a quick win but putting yourself in danger of being noticed? Or do you wait for an unsuspecting player to set off the statue, and slay them from behind?
This is one of the most fun, if not THE most fun local multiplayer games I've ever played, hands down. This is what multiplayer gaming was about: having fun with REAL PEOPLE, before it all became about leaderboards and strangers from halfway across the world. People that you know; friends, family, whoever. Anyone can play this game, from your pro MLG 360 noscopers to your filthy pleb casuals.
And it's so refreshing to see local multiplayer games make a comeback, even if most of them are indie titles. Hidden in Plain Sight is a prime example of a simple and brilliant idea with simple and brilliant excecution. It doesn't fall prey to other indie game tropes such an annoyingly pretentious storyline or an obsession with "unique" and overused gimmicks.
Yeah, it might not look a treat, but the graphics really, really don't matter. Same goes for the sound, as most of the time you'll be yelling anyway. The gameplay is incredibly unique, tense, and just insanely fun. It's as simple as that. If you're looking for a local multiplayer game, then buy this. At $5 it's an absolute steal. I cannot recommend it enough.