If you're looking to play a game that pits you in a competition against dozens of other online players at the drop of a hat, there are few options better than .io games.
The best examples of .io games are a fast-paced struggle for survival, as climbing on the leaderboard makes you more powerful -- but also more of a target. These games are able to squeeze a surprising amount of strategic depth out of a simple-seeming concept, and are a blast to play.
But ever since the massive success of games like Slither.io, there's been an explosion of .io games to choose from -- with new ones popping up nearly all the time. Which ones are actually worth your time? We're here to tell you! These four .io games are the best ones for you to play while you stay inside this summer.