Very short (seriously, shorter than you're thinking). You can beat this in 5 minutes.
Some of the controls need a bit of a polish. Can be a little sluggish and can be tricky to put down some items that you pick up from your inventory.
Not bad for a free game but I wouldn't be in a hurry to try it.

This would have been so much better if it were more expansive. The singular level was very intriguing, just wish there was more.