Paper.io vs Starve.io
Paper.io
Paper.io is a competitive and fun IO game that has a gameplay which builds on Slither.io while offering plenty of unique gameplay features of its own. In this game, instead of controlling a worm (or snake, depending on which side of the argument you're in), you get to play as a neverending strip of paper. The strip of paper can be used to circle areas, be it empty areas or areas already captured by other players, that neighbors your own starting block in order to claim them as your own.However, while you're busy trying to capture as much area as you can, other players can run through your "exposed" strip of paper to in some way "cut" through it. If that happens, you die and all the areas you hold gets returned to neutral. There is also the issue of needing to defend your captured area from being "taken" by other players. Things can get pretty heated as your controlled region becomes harder and harder to maintain.
Of course, there are multiple options for you to customize your "colors", including swapping plain colors for more colorful patterns.
Paper.io is without a doubt, an IO game that is just as intensely competitive as it is strategic. The game will definitely keep you coming back for more. If this sounds like a game you'd like to play, be sure to check it out on your browser or in your nearest app store.
Starve.io
Starve.io is a unique IO game mainly because it is more of a base-building and survival game rather than just a hack-and-slash arena. In this game, you will need to collect resources and turn them into useful items which will marginally improve your chances of survival. The crafting aspect of the game is very much simplified but it can still take you a while to figure out crucial crafting details like how much resources you need to create a certain item. Also, a quick tip if you will - grab as much food and wood as you can at the get-go.As a survival game, there are several important "meters" that you will need to keep an eye on, such as temperature and hydration. Hunger also something that you will need to frequently deal with, aside from other potentially hostile players as well as other monsters like vampires and zombies if you happen to play its other game modes. There is even a "hunger games" version which frankly feels a lot like a battle royale game.
Unlike many other IO games where players are always pitted against one another, Starve.io is a game in which you can actually choose to coexist with other players rather than just swinging whatever weapon you have in hand at anyone you see... though, many players still do that pretty often, especially those better-equipped ones.