Alright, thanks for the initial feedback, let's dive right into things: We do plan to make the keys remappable in a later version. For now, if you are playing this on a full keyboard, try to have the left hand on the WASD, the right on the numpad and its enter key. That's how I play it and it does give a rather fast rhythm of play, once you get used to it.
Combat is decided by a combination of die-rolls and stats, as with any RPG. While it is opaque right now, indicators on how much damage a monster has taken had been duly noted to be in our list of things-to-be-done. With the player character: You only have four HP. Unhurt, Slightly Hurt, Hurt, Barely Hanging on to Life. Then you are dead. Attacks can do more than one damage, especially if reckless attacks are involved. So yeah, that rat hit you relatively hard for at least two damage when it killed you.
While I do not intend to let the player know the numbers behind what happens while playing the game because this is more about immersion, I do plan to add features and descriptions that help you make more informed decisions during play. Also, as the monsters are not randomly generated in their stats, once you have some experience with the game, you will start to learn what monster is weak, and what is a reason to run away. As long as you are unarmed, I strongly suggest only taking on rathounds, if any.
Thanks for the feedback! Keep me informed if you have anything more!