Being one of the most enjoyable unblocked io games, agario is preferred by most players. It is fun game as well as easy to play. You start the game with a blob. Your aim is to grow it by eating pellets around the playground. Once your blob has grown enough, you can also attack smaller blobs and eat them. Meanwhile, you can be eaten by bigger blobs. You should also consider viruses in the game. If you touch one of these, your blob will be split into many pieces. However, you can use them to hide inside if your blob is small.