Resin. A game now sadly delisted because its creator was unhappy with it.
One look and you can probably figure out why this appeals to me on an aesthetic level. But the twist that really sold me about this one is defeating bosses incrementally restricts your ability, you’re out to destroy your own power source in a bid to put a dying world to rest. I was taken by how it ends up playing, as beyond affecting your health and stamina bar, this also impacts your movement and attack animations, and how much it managed to pull off with so little and being so short. I found it a lot more accomplished than the developer seemed to, but I understand how that can be for a creative. Good nocturnal game, often revisited.