Ring of Pain is a quite challenging and unforgiving roguelike.
I like the puzzle energy some moments bring, but it's an overall painful experience.
For some reason I kept coming back to it though, and it plagued my day with an urge to play more.

My biggest problem with the game is that it's very RNG based.
There are a ton of items, but most of them don't go very well together.
Similarly, there are a lot enemies, and sometimes they go very damn well together.

Still, it's very unique and well done.
There are a lot of mechanics, and they interact with each other perfectly.
Some items are exceptionally creative with their effects, and that keeps the game fresh.
There is a lot of pain and suffering, but I don't regret it.