Great game! All the atmospheric writing really sucked me in.
Luck seems like a useless stat. I started out with a high dex/luck build hoping to be able to spam crits, but I respecced later in the game with no luck (just str/dex) and got about the same amount of crits! A high luck did make crits more damaging, but with a high strength, the crits were just as damaging and your regular attacks much more so.
Also, I didn't realize until the end that you could equip relics; you might want to make that more clear.
All in all, great job. I'd love to see something more fleshed out using this engine.
Suffers from terrible 'adventure game logic'. In order to block a mirror, you need to use a BURNING CAT? Awful. Sometimes the production values were pretty good, but the voice acting was pretty spotty. Ok job setting up the atmosphere, but some things just didn't belong (again, see: BURNING CAT). As many people have said, the minigames were pretty bad too. Definitely needs some touching up; totally unplayable without a walkthrough.
Neat idea, but slows down considerably when you thin out the enemies. It's not too much fun watching 2 invaders go back and forth just waiting for one of them to shoot. You might want to consider updating so a minimum number of shots per few seconds are always being fired.