Flyordie.io, also known as evoworld.io, is a game where you try and evolve from a fly to a grim reaper. To climb the levels, you must eat the things that are shown by a green outline. you must also avoid things with a red outline, as they can kill you. although the game seems simple,there are many complex parts, like where the best place to farm food is, how to avoid enemies. you also need to monitor your air/water levels, because if they reach zero, you will rapidly take damage until you die, or you can get either oxygen or water, whichever one is at zero. you also should know that people can be VERY mean in game, as they will kill you for no reason, right as you spawn, or for many other reasons.
all in all, I would give it a 7 out of 10