Dark Souls is the 2011 Action RPG game developed by FromSoftware, and the title that sparked the "Souls-Like" game genre phenomenon. Since its initial release it has been critically acclaimed to be consistently among the best experiences in gaming, as well as one of the most punishing and rewarding. The game, with all three of its titles, surrounds the concept of an overall inconsequential protagonist who is typically presented with the options of linking the First Flame- providing oneself as fuel for the fire of the world, extending the age of the Gods for a bit longer- or choosing another path, such as in Dark Souls I, wherein the player may decide to reject the flame and embrace the Abyss, starting the Age of Man.
Power of the Verse
In Dark Souls, most power levels are based upon scaling to singular calculations. For example, Lords of Cinder are Star level due to the evidence provided from Dark Souls III that the Kiln of the First Flame does indeed correlate directly to the sun. The lower ends rank at City Block level due to a handful of calcs found to be consistent- Large Building level Asylum Demon swings and City Block level Chaos Storm- among others.
For more information on the feats and power of this verse, go here and here.