Contract Wars is a browser-based game, meaning it's designed to be played using a keyboard and mouse. There's no built-in support for controllers.
However, there might be some workarounds you could explore:
* Third-party software: Certain programs like JoyToKey or x360ce can translate controller inputs to keyboard commands. This would require some configuration and might not be completely seamless.
* Emulators: If you are playing the game through an emulator like BlueStacks, you might be able to configure controller support within the emulator's settings.
Keep in mind that these methods are not officially supported by Contract Wars, and they might not be fully reliable or offer a perfect experience.
If you are looking for a similar game with controller support, you might want to check out other first-person shooters (FPS) available for your platform.