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Rated 5.0 out of 5
11 Reviews
Regular price
$274.99 USD

New orders ship within 5-10 business days upon purchase.

What happens when you buy a ticket to a play that can never be seen? 
What calamity arises when you invoke the name of the Yellow King?
What will become of a world that only you can save?

Discover these terrible truths in one of the most immersive, ambitious, tactile, and terrifying experiences we have ever been a part of. 

In partnership with Phantom of Truth Productions, The Mysterious Package Company presents a one-night-only performance of “The King in Yellow” — a play so boundless it could change the fabric of existence. And there’s only one seat left. 

Should you claim that last ticket, you’ll receive far more than a night at the theatre. Instead, you’ll get the fearsome adventure of a lifetime — one spanning centuries, crossing universes, testing the bounds of sanity... 

It will, in fact, be all you can do to withstand the ochre madness — at least long enough to save us all, or serve us up to HASTUR.  


  • 2 mailing experience
  • The narrative of this Experience is centred around solving puzzles


First arrives a ticket, addressed to you, for a performance that has already happened. You may know that “The King in Yellow” is a forbidden demonic play that makes the audience go mad. Or you may not. But as you begin to follow up, your frustration at missing the play in question turns to relief as it seems something beastly and fatal occurred during the performance. There is an ongoing investigation, and apparently you are a person of interest. You receive strange emails to this effect that pull you deeper into the darkest of rabbit holes. Then, all of a sudden, a large wooden crate arrives. 

The crate is full of strange things: relics, rune scrolls, star-charts, a statue, a dossier of papers streaked with blood, and some even curiouser items. It will be up to you to decipher these objects — to figure out what they mean and how they fit together. But there is much more at stake here than simply solving a mystery. Amidst ancient rituals to be performed, intergalactic codes to be broken, and portals to be opened (both online and among the stars) the deepest and deadliest of decisions must be made: Will you bring HASTUR forth, or will you hold him far? Will you save the world, or help destroy it? 

The choice is yours in one of the most intense, disturbing, and elaborate adventures you’ll ever experience. We can only pray you’ll make the right decision. 


HASTUR is an immersive experience with a complex storyline and numerous puzzle aspects. The narrative involves demonic cults, murder, rituals, and suicide. It is not suitable for children, or people with a sensitive constitution. Your recipient will love it if they are fans of horror, the dark arts, demonology, the work of Robert Chambers and H.P. Lovecraft, the cult of Carcosa, Cthulhu, or the King in Yellow. 


  • Digital components (throughout)
  • Ticket Treasure site
  • Phantom of Truth site
  • SRDA electronic form

Mailing 1

  • Play ticket
  • Letter from Ticket Treasure

Mailing 1.5

  • Online electronic form experience

Mailing 2

  • Playbill
  • Research Dossier
  • Statue
  • Star map
  • Ritual bowl
  • 5 Cylinder Seals
  • Wood-framed clay tablet
  • Glass vial
  • Complex dial mechanic
  • Instructional scroll
  • 5 Illuminated pages
average rating 5.0 out of 5
Based on 11 reviews
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100% of reviewers would recommend this product to a friend
11 Reviews
Rated 5 out of 5
Review posted

Try not to loose your marbles

Have you ever wanted to unleash horror upon the world but never really knew where to start? Look no further. With this set of packages, you can sow the seeds of the end times from the comfort of your own home or even enjoy it with friends!

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Rated 5 out of 5
Review posted

Hastur - mind bending and brilliant

Outstanding instalment in the MPC library. Drove my wife nuts :)

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Rated 5 out of 5
Review posted


The puzzles are just difficult enough to be frustrating, but do-able. The puzzle pieces weave a beautiful web - I'm tempted to make an artistic conspiracy board out of them to display on my wall. The art is jaw-droppingly darkly beautiful. The story is wonderfully enthralling. As a web developer, I was very impressed with some of the behind-the-scenes code and easter eggs hidden within. Hell yes I recommend this product!

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Rated 5 out of 5
Review posted


Unpacking Hastur was an absolute joy. I loved the interactive elements (the clay tablet and stamps, the alchemy in the bowl), which really added to the feeling that I was unearthing, rather than being told, this story. Plus, the statue of the King in Yellow is an absolute delight, and has taken a prized spot in my living room. Something about the fact that the King's hood goes so deep, and you can see that there is no head there, really speaks to the King in Yellow's nature.

a great experience, y'all did a good job putting it together

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Rated 5 out of 5
Review posted

A new twist to reaching for the stars!

Wow. Just wow. This is the fifth adventure I've purchased for my husband, and by far the most complex and imaginative! We still have not gone through all items in the massive crate, but finding his name in the newspaper clippings was an extra bit of fun! These are WELL worth the money - you won't be disappointed and who knows what will happen if enough of us carry out the instructions?!

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