From Hordes.io Wiki
These are the Controls in Hordes.io:
- Press WASD to move your character around.
- Press LMB to select targets.
- Hold LMB to rotate the camera around your character.
- Hold RMB to rotate your character.
- Press 1234 to use your skills on a target.
- Press Tab to cycle through enemy targets.
- Press Shift to cycle through friendly targets.
- Press F1 to toggle on or off a list of controls and commands in game.
A list of key binding can be seen in chat by using the "/bindings" command. Key bindings can be changed by using the "/rebind" command, and they can be reset to default with the "/resetbindings" command.