Diep.io vs Hole.io
Diep.io
Diep.io is a fun tank-like IO game where players play as pencil-drawn tanks on a piece of white (and sometimes gridded) paper filled with other hostile tanks as well as a variety of obstacles and Polygons. Shooting at Polygons and other players will earn you points to level up your tank to the next tier, unlocking a wide range of upgrades (or "classes" as the game calls them). At frequent intervals, AI-controlled bosses will be spawned allowing players to work somewhat cooperatively to earn a ton of experience points.Many players are calling out Diep.io as being a clone of the previously popular Tank.io (not sure what happened to Tank.io though), but considering that it's currently the last game standing, I guess it's safe to say that new players will never know about Tank.io but will instead be able to enjoy its legacy through Diep.io.
Hole.io
Hole.io is an IO game where the sole objective is to suck as many things (or other players' smaller black holes) into your black hole just so you can grow it. The arena you'll be playing in is filled with plenty of buildings, moving vehicles, mailboxes, and trees that you can gobble up, but be careful! Other, larger black holes might go after you and gobble your black hole up instead! At the end of the day (there's a time limit), the player with the highest bulk, and hence, score, will win the game.Hole.io is pretty similar to Agar.io in many ways. However, you won't be able to eject your mass to propel your black hole forward. If this sounds like fun to you, you can check out the game for free on your browser!