A simplified version for those who only have the HasbroQuest remake 2021:I still think you need to follow publication order with the remakes of the originals first, before the new quest books.
HeroQuest GAME SYSTEM Quest Book 14 quests1a. Rogar's Hall (online training quest) Hasbro
https://cdn.hasbro.com/faaa3d5019832273570327fcdc971786a399f134/8ce8da71ae03462180a184da7535eab5.pdf don't just google Rogar's hall without HeroQuest or Hasbro or you will get several buildings actually named that at various boarding schools and whatnot.
1b. The Trial, Quest Book HeroQuest Game System
2. The Rescue of Sir Ragnar, Quest Book HeroQuest Game System
3. Lair of the Orc Warlord, Quest Book HeroQuest Game System
4. Prince Magnus' Gold, Quest Book HeroQuest Game System
5. Melar's Maze, Quest Book HeroQuest Game System
6. Legacy of the Orc Warlord, Quest Book HeroQuest Game System
7. The Lost Wizard, Quest Book HeroQuest Game System
8. The Fire Mage, Quest Book HeroQuest Game System
9. Race Against Time, Quest Book HeroQuest Game System
10. Castle of Mystery, Quest Book HeroQuest Game System
11. Bastion of Dread*, Quest Book HeroQuest Game System (*name changed from Chaos)
12. Barak Tor- Barrow of the Witch Lord, Quest Book HeroQuest Game System
13. Quest for the Spirit Blade, Quest Book HeroQuest Game System
14. Return to Barak Tor, Quest Book HeroQuest Game System
KELLAR'S KEEP Quest Pack 10 quests15. The Great Gate, Kellar's Keep Quest Book
16. The Warrior Halls, Kellar's Keep Quest Book
17. The Spiral Passage, Kellar's Keep Quest Book
18. The Dwarven Forge, Kellar's Keep Quest Book
19. Hall of the Dwarven Kings, Kellar's Keep Quest Book
20. The Great Citadel, Kellars's Keep Quest Book
21. The Eastern Passage, kellar's Keep Quest Book
22. Belorn's Mine, Kellar's Keep Quest Book
23. The East Gate, Kellar's Keep Quest Book
24. Grin's Crag, Kellar's Keep Quest Book
RETURN OF THE WITCH LORD Quest Pack 10 quests25. The Gate of Doom, Return of the Witch Lord Quest Book
26. The Cold Halls, Return of the Witch Lord Quest Book
27. The Silent Passages, Return of the Witch Lord Quest Book
28. The Halls of Vision, Return of the Witch Lord Quest Book
29. The Gate of Bellthor, Return of the Witch Lord Quest Book
30. Halls of the Dead, Return of the Witch Lord Quest Book
31. The Forgotten Legion, Return of the Witch Lord Quest Book
32. The Forbidden Caves*, Return of the Witch Lord Quest Book (* name changed from caverns)
33. The Last Gate, Return of the Witch lord Quest Book
34. The Court of the Witch Lord, Return of the Witch Lord Quest book
THE SPIRIT QUEEN'S TORMENT Quest Book Mythic Expansion 14 questsQuest 1 Ruins of Wyvern Keep-Ground Floor
Quest 2 The Brigands' Barracks
Quest 3 Nelath's Tomb
Quest 4 The Goblin Warrens
Quest 5 The Hero Within
Quest 6 The Perilous Escape
Quest 7 The Drowned Temple
Quest 8 The Flooded Catacombs
Quest 9 The Sage's Exile
Quest 10 The Tower of Earth
Quest 11 The Tower of Water
Quest 12 The Tower of Air
Quest 13 The Tower of Fire
Quest 14 The Spire of Spirits
PROPHECY OF TELOR Quest Book Mythic Expansion 13 questsQuest 1 Return to Melar's Maze
Quest 2 Escape from Melar's Maze
Quest 3 The Great Stairwell (12 levels with various names)
Quest 4 The Tower of Turekk Tor
Quest 5 Melar's Chambers
Quest 6The Ruined Temple of Gilgarreth
Quest 7 The Archives at Arborenis
Quest 8 Telor's Tomb
Quest 9 Halls of the High Mages
Quest 10 The Arena of Misildia
Quest 11 Melar Unleashed
Quest 12 The Rise of Fellmarak
Quest 13 Zargon's Flame
THE CRYPT OF PERPETUAL DARKNESS Quest Book Mythic Expansion 10 questsQuest 1 The Rat and Candle Tavern
Quest 2 Jail Break
Quest 3 The Marsh of Sorrows
Quest 4 The Lost Mine of Tyjit Shaleaxe
Quest 5 The Sunken City of Buubhealxea
Quest 6 The Tomb of Hate
Quest 7 Halls of Doom
Quest 8 Forge of the Mountain King
Quest 9 Throne of the Death Knight
Quest 10 The Crypt of Perpetual Darkness
I want to contemplate long how and where the new questbooks might fit in with all of the original quests from the original Milton Bradley/ Games Workshop version...
By Crom I'll split you crown to crotch to see if your guts are yellow as I think they are nithing BARBARIAN Ulrich
The last music you shall ever hear will be my bowstring as your forehead sprouts a feathered shaft, pity ELF Cael Darkhollow
Tomes grimoires manuals atlas formularies compendiums codexes bestiaries folios scrolls... Am I missing anything before we leave? WIZARD Eldritch Heironymous KigamMagister
Some quick axe work an' we can count the coins and gems DWARF Wulfram Magnussen