Arx Arcana: Dungeon Royale (Arxarcana.io)

Description:

Arx Arcana: Dungeon Royale is a fun royale fighting game with a touch of fantasy. 2D graphics and amazing top-down gameplay. In this multiplayer game, you have to fight hundreds of players from all over the world. Choose a character that suits your style of play, and free your enemies by throwing different spells and using some extraordinary weapons.
WASD or arrow keys to move
Left-click to shoot
Shift to run
1, 2, 3 to activate abilities
Right-click to drop abilities
You can reconfigure these keys and more in the Controls section of the Options menu (gear icon in the top left).