And how! That difficulty level Hard is really hard - enemies hits like a truck (Shamblers and Fiends hits like freight train), few enemies makes debut earlier than should on Normal. I'm going to reach the secret levels on each episode. And there will be A. LOT. OF. DEATHS.
Levels with time stamps:
1:20 Slipgate Complex
8:35 Castle of the Damned
16:30 Necropolis (caught offguard by Fiend duo at the start of level, aand later by three Shamblers)
31:43 Grisly Grotto (gone into secret level)
44:39 Ziggurat Vertigo (very interesting level, thanks to low gravity quirk, which messes both sides)
56:08 Gloom Keep
1:09:08 Door to Chthon (i never fall to that spikey deathtrap, until to this day)
1:17:05 The House of Chthon
1:19:30 End of Episode One.
At this time, RedRiot1 has 981 views for Quake spread across 23 videos. This game accounts for over 1 day of watchable video on his channel, roughly 9.73% of Quake content that RedRiot1 has uploaded to YouTube.