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Chaosium is marking its 50th anniversary and putting its flagship TTRPG front and center with the recently revealed Call of Cthulhu Slipcase Set. The collection brings together updated editions of the game’s core materials with brand new artwork from Swedish illustrator Ola Larsson. The book will be coming out in early 2026, but is available for pre-order now exclusively from the Chaosium website.
The new set continues Chaosium’s year-long celebration of five decades in the tabletop RPG industry, with Call of Cthulhu (which was originally released in 1981) remaining the company’s most influential and recognizable title. Below, we take a closer look at what fans can expect from this upcoming collection.
What is the Call of Cthulhu 50th Anniversary Slipcase Set?
The 50th Anniversary Set brings together the core components of the 7th edition of Call of Cthulhu, all packaged in a premium slipcase that features new cover artwork from Ola Larsson (although notably, this image did first appear in the Swedish edition of the game, which was Kickstarted back in 2024). This includes:
- Keeper Rulebook: The core rules for running investigations and Mythos encounters.
- Investigator Handbook: Player-facing rules, character options and guidance.
- Keeper Screen Pack: A multi-panel screen with supporting materials.
Each of these products contains brand new cover art that’s exclusive to the slipcase set.
How much is the Call of Cthulhu 50th Anniversary Slipcase Set?
The new slipcase set will retail for $139.99 USD (not including shipping and handling). Notably, the current version of the Keeper Rulebook retails for $55 USD, the Investigator Handbook goes for $45 USD and the Keeper Screen Pack is $29.95. This means Purchasing the three products separately would cost around $130 USD (not including taxes, shipping and handling), so the extra cost is really due to the limited nature of the product.
When will the new Call of Cthulhu 50th Anniversary Slipcase be released?
The set will ship sometime in early 2026. We’ll be keeping a close eye on this in the days ahead and will update this page with an exact date as it’s made available. Notably, you can only purchase this product from the Chaosium website, so changes are we won’t see it at local game stores anytime soon.
Why is the 50th Anniversary Slipcase Set worth picking up?
- A major anniversary release: The slipcase marks Chaosium’s 50 years as a publisher, making it a notable milestone for collectors and fans of the game’s history.
- New, exclusive artwork: The new artwork on the case and books looks absolutely stunning and is available only in the set.
- Unified core rules collection: We haven’t really seen any recent bundles of the Keeper Rulebook, Investigator Handbook and Keeper Screen Pack, so this is a great option for new or returning players.
Final Thoughts
Chaosium’s 50th Anniversary Call of Cthulhu Slipcase Set will mark a major milestone for one of the TTRPG industry’s oldest and most popular games outside of Dungoens & Dragons. We’ll be keeping a close eye on this story in the days ahead and will update this page with new information as it’s made available.
In the meantime, can pre-order now exclusively from the Chaosium website.