I thought it was a lot of fun - though I do think using mouse feels very easy compared to wasd so I would recommend choosing one and balancing around it (though I am honestly fine with either, they are both totally fun in their own way.) wasd causes a great brain mismatch issue when you are on the bottom of the moon since your controls effectively reverse while mouse doesn't have that issue.
I don't know what your genre mashup is here though - you said extraction shooter which is very much a genre but this doesn't involve shooting so I was a little confused there. But I loved the rest of it.
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