Arrow.io vs Starve.io
Arrow.io
Arrow.io is a simple yet addictively fun and competitive MMO game where you run around an arena collecting blue gems, hunting down other players, and trying to stay alive for as long as you can. Available on only Android and iOS (those are the official ones), this game can be played via the 2 virtual joysticks on both sides of your screen - one is for movement and the other, to shoot at your preys. There are tons of cute block-like heroes to play as, each of them have their own preferred way to kill whether ranged or melee and will offer you a slightly different game experience. The map also has many walls which act as barriers for you to take cover as necessary.Arrow.io may be a very simple-looking game, but it is among the most popular IO games there is on the mobile platform. If you love multiplayer PvP games that you can immediately hop into, this is a great IO game to play. Do check it out!
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.