An enjoyable online action game is Geometry Tag Wars. Rapid-fire fights require you to think and move faster than your opponents. Don't be the person holding the flag when time runs out.
There are at least two people playing this flag-tag game in an arena. There is a timer that starts at zero and goes off when the flag is quickly passed to another player. Whoever has the flag when the timer runs out loses that round.
Passing the flag is as easy as getting close to or touching another person. The person who has the flag has to try to pass it to someone else, and the other people have to stay away from getting the flag.
Earning emeralds by winning matches lets you change your character's look and get new clothes.
Instructions:
Use the Arrow keys or WASD keys to move.