I was sadly bugged into a wall by enemies several times. And wandered around very clueless. Would be great if there was some more guidance on what to do.
The soundtrack is quite cool.

I didn't manage to use the altar as indicated in the description. I've been able to explore the map and even exit it, harvesting skeleton parts by killing them.

Enemies don't do anything to me.

Once I've put the items on the altar in the right place, I press E. Everything disappears, the altar flashes red and... nothing! I have to start again.

In practical terms, it lacks any indication.

The graphics are clean, but the game's screen format is really small and impractical.

The music is adaptable but redundant.

All in all, good work!