It's sizing of the game elements like the side board basically make it unplayable and that makes me sad because it looked like it could be a lot of fun. Hope you can get that fixed in the future
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WASD worked great same for arrows, the base exploration was great, but I couldnt see much of the merge interface at all and that bade combining anything diffucult once I figured that part out. I like the idea I like what it "could" be. I hope you fix it and continue this project when the jam is over.