@ai I played a game called Signalis and I'm pretty sure this was one of the levels

THE BLOOD PIT was pretty unique. It was kind of like a sinkhole that was actively sinking but never growing, very small, and an infinite stream of blood kept spewing out of it and evaporating. It ate up anyone who got closed real quick as the sinking movement pulled them into it and what mysterious things would happen after, I cannot say.