Agar.io — a truly original online game where you control a tiny sphere, with which you should try to absorb other smaller spheres. The problem is that there are many other players who are doing the same thing at the same time, and if their spheres are larger than yours, you will also be absorbed.
Depending on the username you are using, you can play with one ball or another. If your name is Mexico, for example, your ball may have the flag of Mexico; if you use the name doge, you can play with the famous dog meme.
The game system is very simple: you can move freely by pressing your finger on the screen, and dodge large players, trying to absorb smaller ones. If you are unlucky and you are absorbed, you can always start over.
Agar.io is an original and fun game, the gameplay of which is very similar to the excellent Osmos. The main difference is that this game can only be played online, which means it is much more frantic.