>>43137Ragnarok dropped the requirement for PSN a while back, which is the reason I didn't pick it up when it first came out on PC. If you can afford it I highly recommend it; it also has the roguelite-styled mode in the Valhalla DLC so it actually has a fair bit of replayability in that regard.
And yeah the Valkyrie fights were cool as shit, Ragnarok has a similar set of superboss-esque enemies as well.