GOG's Back to School Sale freebie number two is the comedy/musical/stage show/adventure game Once Upon a Jester.

GOG page[www.gog.com]
(claim from the banner on their front page)

Details:
- Account required: GOG.com with e-mail marketing opt-in
- DRM-Free (NOT Steam)
- Offer good thru September 5, 1400 GMT.
- Steam store page for comparison

LH
That was some of the best musical theater I’ve seen to date - right up to the part where you got killed.