Because WASD is only for US, this game was made by a French teal and we hadn't enought production time to let users change it ^^;
Would be nice if it could be made an option, I'd love to re-visit it properly
I'm not sure but I think you can switch from QWERTY to AZERTY by pressing Shift + Alt, that's like this on most keyboards at leastAnd you can also change the inputs in the Unity launcher
Yup there's an option for it right before you start the game ;)