It's a little known RPG from 2006, with Ultima 7 style graphics (and it looks much better than all of the atrocious pixellated graphics shovelware reelased nowdays.) The 2nd and 3rd games in the series, and some other RPGs, are also on sale:
https://www.gog.com/promo/20170228_special_promo_rpgs
Looks like the wrong link to the freebie. Should be this one:
https://www.gog.com/game/eschalon_book_i