Celestia is fairly similar to games such as agar.io or at least it definitely fits the criteria for the genre. You’ll be taking control of a blob floating around in outer space and have to eat your way to the top of the leaderboard. If you’re unfamiliar with this type of game the term ‘consume to grow’ is pretty much all you’ll need to know. Around the map you’ll find several smaller white blobs however they do not have names like normal players, these are food orbs and are used to provide small boosts of score/size to your character. Celestia favours the large, the bigger your blob is the stronger and safer you are, although you can fire projectiles it ultimately comes down to eating smaller players as the main source of your food.
How to play
Use your mouse to control your character, left click to fire projectiles and right click to boost.
Play Celestia.io Unblocked at school