
Multiplayer really defines most genres these days and is usually what keeps people coming back to games. A good multiplayer game usually consists of leaderboards, stat tracking, a reward system, and lots of maps, customization options, and just super fun addictive gameplay.
Call of Duty: Black Ops
Modern Warfare redefined the FPS multiplayer scene and Black Ops perfects it with Wager matches, tons of customization options, perks, ranks, and well-made maps. Nothing can really hold a light to Black Ops, and to me is probably one of the best FPS multiplayer games of the decade.
Runner-Ups
StarCraft II: Wings of Liberty
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Halo: Reach
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Battlefield: Bad Company 2
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Rock Band 3
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