Thanks Amudeus for your comment!
Good catch on that typo. I fixed it on my latest version (which will be put online shortly).
Yes, the project is still in active development and there will be quite a lot of more content coming. I have started to implement another floor of riddles, they should be available in future versions.
I might have been a tad hasty to enter the jam with an incomplete project, but by the time the contest ends I should have a finished product available (I will probably take out the earlier versions then, in order not to confuse people on which version to download).