Blobgame.io is an .io game similar to Agar.io. Players move around the map and try to grow and survive in any way they can. Small blobs aren't able to eat any other blobs and just have to farm food for the time being. When players start gaining lots of mass, they also become big targets by players in the top of the leaderboards which means the game gets harder the bigger you get.
Play Blobgame.io unblocked here at Destroygames.