It really depends on what of type of warfare you are looking for. If you are looking for warfare with guns and tanks I really like warfare 1917 from addictinggames.com. It is about World War I
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Here are some of my favorite multiplayer games; all of them are free, all of them have options to pay, to get some additional benefits: RuneScape; War of Legends; OGame; Foundation: The Game (unfortunately, this game is currently available only in French).
The top 4 are toon town, wizard 101, fusion fall, and world of warcraft. But the best and #1 fact which one is better is world of war craft
unless you order it or download it you cant but you can play the free trail
Best game ever.
Epic War 4 is a popular fantasy flash game. To use cheats, it is possible to find a hacked client of the game online.