Kill critters. Killer players. Kill everything to level up and become an all-encompassing force of fantasy in Fightz.io, a multiplayer PvP arena with a bit of "gun game" sprinkled on top.
Move with the mouse. Use the left mouse button to shoot, and the right mouse button to dash.
Kill enemies (either players or npcs) and collect the experience dropped to level up. Each level grants you a different weapon, and unlike a lot of IO games, you don't lose all progress when you die. A portion of your experience is saved.
There are many options in how you play. Focus on farming experience and level up steadily. Duke it out with other players to level up more quickly, but with more risk. Or lay in wait and steal kills.
Unlike a lot of IO games, a portion of your progress carrying through death allows you to play a bit more aggressively.