Very Limited Seating Left - Book Soon!
In a Castle
Complete a Entire Scenario in
One Epic Weekend!
🌞 Summer Details
📍 Glencairn Museum | Bryn Athyn, PA (minutes north of Philadelphia)
Two Epic Summer Weekends
June 19–21, 2026
August 14–16, 2026
We’re proud to return to our legendary castle venue — Glencairn Museum — for two unforgettable Summer 2026 tabletop RPG weekends.
Summer at Glencairn offers the perfect balance of immersive spaces with relics and treasures, relaxed vacation energy, and world-class gaming.
🎲 What Your Ticket Includes
Every event is curated to help you focus entirely on play and connection.
✔️ Professionally run campaigns
✔️ Exceptional, hand-selected Keepers
✔️ Dedicated on-site staff and support
✔️ Catered meals all weekend
✔️ Unlimited snacks and beverages
✔️ Carefully balanced tables and welcoming community
A premium tabletop RPG experience for adults who want immersion without chaos.
In a world of screens and distance, rediscover what matters: real stories, shared around a real table, with real people. This is the way RPGs were meant to be played — together.
Scroll down for more information.
Escape the Ordinary. Embrace the Unreal.
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An RPG Vacation
Keepers ensure a fully cinematic, emotionally charged journey through an Accelerated Campaign over 3 days of cosmic horror.
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Authentic Atmosphere
Play RPGs in historic landmarks under real stone arches, low lantern light, and rumbling moans—everything’s designed to warp reality.
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All Inclusive
We take care of everything so you can focus on gaming! Meals, lodging, event prep, and more are included!
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Party Options
We offer private party group tables and mixed parties for new friends, couples, and solo players. When Sanity’s a Luxury, Horror is Home.
The Castle: Glencairn
Glencairn is a true medieval masterpiece with soaring halls, stone staircases, and museum-level architecture that elevates every moment of play. From dramatic roleplay scenes to late-night dice rolls beneath vaulted ceilings, this is tabletop gaming the way it was meant to be experienced.
“The setting was truly inspiring for the gameplay. Our GM was amazing, engaging, and uplifting. It may have been our group, but I can certainly see playing with all our party members in the future!” - Scott
A Premier RPG Vacation
Chaosium partners with The Game Theatre's vacation gaming experts to host immersive tabletop RPG getaways in America’s most iconic locations, filled with rich history, elegance, and just the right amount of dread for a weekend of terror. Join fellow investigators from across the country for an escape filled with sinister Call of Cthulhu scenarios, catered meals, lodging, and some of the most talented Keepers of Arcane Lore in the field. Whether you’re unraveling a maddening mystery, confronting cosmic horrors, or surviving the legacy of an occult past—your descent begins in style.
“My friend and I had a wonderful experience at the event. Our GM (Keeper) was stellar, both entertaining and deft at managing the pacing and engagement in the game. It was fun that most players, and the Keeper, did a bit of cosplay too. The event really had this 60-year-old man feel like he was reliving the glory days of teenage RPG games with his friends.” - Bradley
“A weekend of insanely fun and intense gaming that you can't easily replicate at home or at a convention.”
Rick Meints - President of Chaosium
Your investigation awaits—select your Scenario in the Booking Form emailed to you after purchase.
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![Masks of Nyarlathotep]()
🜏 Masks of Nyarlathotep
Limited June & August Seats Left!
Epic Campaign • Global Horror Conspiracy
A chilling investigation unravels across continents as a dark god’s cult tightens its grip on the world. From New York to Cairo to Shanghai, every clue leads deeper into madness. This legendary campaign delivers globe-trotting terror, ancient secrets, and a desperate race against cosmic doom.
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![Horror on the Orient Express]()
🚂 Horror on the Orient Express
Limited June & August Seats Left!
Epic Campaign or Standalone Chapters • Supernatural Mystery
Ride the famed Orient Express into a waking nightmare. As investigators chase whispers of an ancient artifact, death and madness haunt every carriage. Lavish dinners, cursed dreams, and twisted truths await in this iconic, award-winning tale of psychological horror on rails.
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![Mansions of Madness]()
🏚️ Mansions of Madness
August Seats Only (June Closed).
Scenario Anthology • Gothic & Psychological Horror
Step inside crumbling estates where whispered curses linger in every hall. These chilling one-shot mysteries unravel family secrets, forbidden rites, and spectral visitations that blur the line between the living and the dead.
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🧊 Beyond the Mountains of Madness
Limited August Seats Left! (June Closed)
Epic Expedition • Cosmic Survival
Venture into the frozen heart of Antarctica, where secrets older than mankind lie buried under ice. In this sprawling tale, your expedition discovers horrors that defy reason and threaten your very sanity. With harsh terrain and ancient truths waiting at every ridge, survival becomes as elusive as the answers you seek.
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![The Two-Headed Serpent]()
🐍 The Two-Headed Serpent
Only 3 Seats Left for June! (August Closed)
Pulp Adventure & Global Conspiracy
Race across the globe to stop a sinister corporate plot tied to ancient reptilian horrors. Lost temples, deadly jungles, and shocking betrayals stand between your team and the truth that could rewrite human history.
Key Details
Both June and August 2026 weekends share the same format, details, and ticket options.
Venue Glencairn Museum | 1001 Cathedral Road, Bryn Athyn, PA 19009 — 40 minutes north of Philadelphia International Airport (PHL). Free parking is available at both the castle and on-campus housing.
Schedule Check-in begins at 10:00 AM Friday. Gaming begins at 11:00 AM and runs through Sunday afternoon. Plan flights accordingly.
On-Site or Commuter On-site tickets include suite-style housing at Bryn Athyn College, directly across from the castle. Choose a 2-night (Fri–Sat) or 3-night (Thu–Sat) stay. The 3-night option is ideal for travelers arriving from out of the area. Commuter tickets are for local players or those with their own accommodations — housing is not included, but all gameplay and meals during event hours are.
Meals On-site tickets include all meals from Friday breakfast through Sunday lunch. Commuter tickets include Friday and Saturday lunch and dinner, plus Sunday lunch. All tickets include unlimited snacks and beverages throughout the weekend. Adult beverages are served at dinner. We accommodate vegan, gluten-free, and dairy-free diets and avoid common allergens including seafood, shellfish, and peanuts.
Adventure Tables Tables are capped at 6 players to preserve quality and immersion. Couples, friends, and families who book the same campaign are seated together. Groups of 3–4 will have additional players added to complete the table. A table closes at 5–6 players.
Pre-Event Prep Discord channels open 2–3 weeks before each event. Your party will receive a private channel to meet your GM, build characters, coordinate backstories, and prepare for the weekend.
Our Accelerated Scenarios solve the problem
Finally, experience a complete mystery in one unforgettable weekend!
Your sessions keep getting canceled. Scheduling is impossible. Half your group is on Discord, phones out, distracted. You miss the magic of being truly present with friends. Many groups can’t meet regularly — life happens. We solve that by making it possible to dive deep and resolve a full Call of Cthulhu scenario in just three days. Arrive as a fresh investigator… and leave forever changed by the horrors you uncover.
You’re not heroes—you’re the last line of sanity.
Our curated scenarios cut straight to the tension: rich character moments, mounting dread, and impossible choices. From Friday to Sunday, each session delivers critical revelations and chilling encounters—ensuring you live (or die) through a complete tale of cosmic terror.
Why Investigators choose us:
✅ A Complete Scenario in One Epic Weekend Dive into a full, story-driven adventure with a beginning, middle, and end — no cliffhangers, no sessions left unfinished.
✅ Professional Keepers, Hand-Selected for Your Table Every GM is chosen for their craft. Expect cinematic storytelling, responsive gameplay, and a session you'll be talking about for years.
✅ Historic Landmarks, Not a Convention Center Play, explore, and rest in a cinematic locations with rare access. The setting doesn't just look the part — it transforms the entire experience.
✅ Your Table, Your People Whether you arrive solo or with a party, you'll be thoughtfully matched with fellow players who share your love of the game. Meet your party on Discord before you ever roll a die.
✅ Everything Included — Nothing Left to Arrange Catered meals, unlimited snacks, adult beverages, professional GMs, custom maps, props, and miniatures. Show up and play.
✅ A Rare Experience Worth Every Penny A full RPG vacation — complete campaign, castle venue, all meals, and on-site housing — is something most players dream about their entire lives. This is it.
Whether you come with lifelong friends or forge new alliances at the table, we're here to make your RPG vacation real. Adventure awaits.
Sample Schedule: June & August
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Thursday
3:00 pm Room check-in opens—late check-in is ok (3-night stay ticket)
2-night stay ticket: check-in Friday between 8:30 am and 10 am. Or obtain the room key anytime Friday from the event runners.
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Friday
7:00 am Campus Breakfast
10:00 am Castle Check-In
11:00 Gaming Begins!
12:30 pm Lunch
1:00 pm Gaming continues
6:00 pm Dinner
7:30 pm Gaming continues
11:00 pm - End Day 1
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Saturday
7:00 am Campus Breakfast
10:00 am Castle opens for Day 2
12:30 pm Lunch
1:30 pm Gaming continues
6:00 pm Dinner
7:30 pm Gaming continues
11:00 pm - End Day 2
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Sunday
7:00 am Campus Breakfast
10:00 am Castle opens for Day 3
12:30 pm Pizza Party
1:30 Final Gaming Rounds!
3:00-4:00 pm End Adventures
4:00-5:00 pm Campus check-out
Plenty of time to catch an evening flight out of Philadelphia.
Travel is Easy!
The majestic historic district of Bryn Athyn hosts many of our events. This world of genuine Gothic revival and Gilded Age architecture is just 40 minutes north of Philadelphia’s airport. No shuttles are provided between the airport and the venue. Of course, apps simplify travel nowadays.
On-Site Housing
Summer 2026 tickets include modern on-site housing at Bryn Athyn College, proximate to the Castle and within the Bryn Athyn Historic District.
✔️ 2-minute drive / 12-minute walk to the castle
✔️ No travel to and from a hotel
✔️ Suite-style residences with modern comfort + breakfast on campus.
Live nearby? We offer commuter tickets. Prefer a hotel? Book a commuter ticket and then book your own hotel independently.
This upgrade offers an all-inclusive retreat — more time gaming and less time commuting. Wake up where the adventure happens!
Prefer a Hotel Stay?
If you prefer a hotel room to campus housing, we recommend booking a commuter ticket to the event (no on-site room or breakfast included), then booking a hotel independently. Fort Washington and Willow Grove, PA, both have hotel options within a 15-20 minute drive of the castle, and these are hotels we’ve booked in the past. Book early, as summer fills fast in Philadelphia, especially with the World Cup being in town.
What Players Say…
“If you are a veteran of tabletop RPGs or just starting out, you will be amazed at how much fun you will have. The DM's are all amazing, the staff is incredible, and the thrills are endless! By the time you sit down, you have made new friends and are in for the adventure of a lifetime!” - Adam
“This was easily the smoothest and most cohesive game I've ever been in (though that was probably the point of turning it into an event, lol), not to mention the most unique story.” - Spenser
“Go with like-minded friends ready to spend most of the day on the campaign if you can, but even if you go alone, you'll likely meet new people just as excited about playing as you are!” - Kevin
“Thank you for putting these events together. I can't express how meaningful they are to me. It's so much more than playing a game. It's an opportunity to make new friends and meet up with old ones. This was my third event, and each of them has been such an amazing experience. You and your team do a great job hosting. Thank you! Keep up the great work! - John
The experience of a first-time attendee
“Evan, Chris, and the Game Theatre Team: I thoroughly enjoyed my experience at Cthulhu in a Castle, especially as a solo player who didn't know anyone beforehand. Everyone I met - that is, event organizers, game masters, and fellow players - was welcoming, friendly, and accommodating. The onboarding and check-in process was seamless and stress-free, making settling in easy. Cairnwood Estate was the perfect location, capturing the Lovecraftian atmosphere of the various campaigns. The catered food was excellent throughout the weekend. It was especially thoughtful of the organizers to provide dinner on Sunday for those of us unable to leave due to the winter storm. They really prioritized comfort and safety while still bringing the fun. I made so many good friends and connections, and couldn't have asked for a better experience. Thank you!” - Michael
Partnership with the H.P. Lovecraft Historical Society
We are proud to feature immersive gaming materials from the H.P. Lovecraft Historical Society (HPLHS), one of the most respected creators of Call of Cthulhu props and period artifacts worldwide. Their meticulously crafted prop collections—such as the legendary Masks of Nyarlathotep Gamer Prop Set—bring scenarios to life with authentic documents, maps, letters, and handouts designed to feel as though they’ve stepped straight out of the 1920s.
At Cthulhu in a Castle, select tables will experience enhanced atmosphere using HPLHS materials, deepening the sense of mystery, investigation, and cosmic dread throughout the weekend.
We encourage all investigators to explore their incredible catalog of games, props, films, and Lovecraftian treasures at hplhs.org and their official store. If you love immersive horror storytelling, their creations belong in your collection.
Contact us
Questions? We’re here to help!
