Publisher Mythworks has launched a Kickstarter campaign for Sourdown, a 50+ page reach and adventure expansion for Felix Isaacs’ acclaimed tabletop roleplaying game, The Wildsea. The project smashed its initial funding goal of £13,381 within hours of launching, securing over £60,000 from nearly 1,400 backers.
Sourdown takes wildsailors into the ancestral home of the tzelicrae, a hive-mind species of silk-weaving spiders who inhabit human-shaped cloth shells. Designed around a narrative, fiction-first d6 dicepool mechanic, this expansion introduces four distinct territories within an ailing region, over 15 new locations, a meddling leviathan hazard, and expanded options for character creation and ship construction.
Silk, Spiders, and Submerged Machinery
Set in a world overrun by a vast sea of treetop greenery known as the Verdancy, The Wildsea uses the Wild Words engine. Character actions resolve using pools of six-sided dice, where rolling 6s yields complete success, 4s and 5s introduce narrative complications, and low rolls usher in disasters.
The Sourdown expansion enriches this framework by expanding on the lore of the tzelicrae, providing a deeper look into their cults, cultivation, and social structures. Players gain access to at least four new character options, including a new bloodline, origin, and posts, alongside rules for customising vessels to suit local factional travel. The included adventure takes crews from the submerged slurry of the Morani Tubeworks to the towering Rassinger Silk-Rig.
The campaign follows recent industry trends toward modular setting expansions, echoing the success of narrative-heavy releases across the indie roleplaying game scene. Writer and designer Felix Isaacs leads the creative team alongside illustrator Leo Chung and concept artist Ömercan Cirit.
Campaign Tiers and Physical Editions
Backers looking to secure the expansion can choose between digital and physical pledge levels, alongside bundles containing the complete core line:
- Pledge $10 (approx. £8): Sour Thread. A digital copy of the Sourdown expansion in PDF format.
- Pledge $20 (approx. £15): Sour Needle. A physical copy of the Sourdown softcover expansion, plus the digital PDF version.
- Pledge $40 (approx. £30): Sour Spindle. The Collector’s Edition hardcopy of Sourdown, featuring unique cover artwork by Felix Miall, plus the PDF.
- Pledge $70 (approx. £53): Ever-Thread. A comprehensive digital bundle containing PDFs of all released Wildsea books and expansions.
- Pledge $85 (approx. £64): Spiderling’s Cache. A physical softcover bundle of the Wildsea book range, along with complete PDF access.
- Pledge $170 (approx. £127): Ever-Needle. A complete physical library of all Wildsea books alongside digital files.
Mythworks has scheduled the initial digital distribution of Sourdown for November 2026, while physical rewards are expected to ship globally in February 2027. The project operates on an all-or-nothing funding model and will close its campaign on Tuesday, 11 August 2026 at 4:00 PM BST.
