Promising, but a little too bare for me to judge what "real" gameplay will be like.
Just a thought I had, if I hadn't just downloaded it and known exactly what I put there, a file named "MS WINDOWS" would kinda make me think it was pretending to be the other MS. I renamed it "Meeple Demo.zip".
There were some issues with the screen resolution settings not staying put when I loaded into the tutorial scene, I don't know if that was intentional for the demo? Also after turning on full screen I couldn't turn it off again.
I had trouble with using the mouse wheel to move in the z-axis, I kept wanting it to control zoom and that assignment felt a bit unnatural. I also had to turn the Camera Sensitivity setting down to 50-70% to stop my mouse from scrolling too fast to stop on the level I wanted. I did use the control arrows in the corner quite a bit; I would have liked a hotkey to change z-levels (and also for recenter) but I didn't see any noted.
I would have liked more than the three zoom settings available; the farthest view was okay for mining but the innermost one was almost too small except for placing the smallest objects.
Using the materials list, white print over white walls got lost while I was playing in the station, while some of the darker icons were difficult to make out in space. This is probably something that needs a panel background to maintain its readability. Also, at the default interface size (which was okay for most everything else) I had trouble distinguishing some of the resource icons due to too-similar palettes, and I'm not one who suffers from color blindness issues. More shapes, perhaps?