Slain.io
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Begin small and weak and fight your way through to become healthier, faster and more powerful. Eat food randomly distributed all over the map, fight other players and non-player monsters to go to the next level. Whenever you reach a new level you can improve one of your nine attributes which helps you achieve even higher levels but that is not all. The game contains almost infinite number of areas each with better and stronger monsters to keep you entertained.