DOOM: The Dark Ages — 100% completion for chapter 13

Chapter 13: From Beyond in Doom: The Dark Agesputs the Slayer back atop Serrat, his trusty dragon mount. The Sentinel command station is under attack and the Slayer must fight back the demonic forces that have mounted the attack. Once again, the beauty of the level as the dragon soars through the battlefield is impossibly impressive, thanks to the brilliance of the id Tech engine 8 in this level. Sure, path tracing is still pending for the game, but it remains a visual delight regardless.