Promising game – I like what's available so far. The characters have distinctive personalities (although the fat slave was an anachronistic sight), the lore exposition was done well in a simple shadow puppetry-like sequence, and the AI generated backgrounds add to the atmosphere (open expanse for the desert at the intro and the claustrophobic underground mines for the rest of demo).
On the negatives: please get an editor, or a beta reader. The spelling and grammatical mistakes were many and made it hard to follow the story. Unfortunately I can see this putting off some people.
Overall, good demo. All the best for the future updates!