
CTHULHU DREAMT
FAQ
Call of Cthulhu is most often set in the 1920s to the 1940s, and typically sets you against an eldritch-horror-of-the-week kind of scenario. It's really good if you want to live out the events of the original Lovecraftian/Derlethian texts, which took place during that time period. Mechanically, Call of Cthulhu leans heavily into prescriptive skills and a sanity mechanic as an expression of capability and survival.
Cthulhu Dreamt is set in a near-future sci-fi world (think Black Mirror), so there's more technology about. It also has a custom soundtrack designed for its campaign and all it's scenarios - Cthulhu Dreamt started as a band, and so music is very core to the game. As we wrote the campaign and scenarios, Reed Reimer (the musician behind Cthulhu Dreamt) wrote music designed to be played during a game session to elevate particularly cinematic moments. Mechanically, Cthulhu Dreamt is a D12 system that focuses on character specialties. Rather than using modifiers like in D&D, it allows you to spend your attribute points to achieve desirable outcomes, but you must manage these resources carefully, because good rest is scarce in a world infested with eldritch nightmares.
All you need to begin playing Cthulhu Dreamt is the Cthulhu Dreamt: Campaign & Rulebook and a standard set of polyhedral dice.
The campaign & Rulebook includes everything you need to learn the system and play through a complete campaign. Most checks use a d12, though combat and other mechanics may call for additional dice from a standard polyhedral set.
Cthulhu Dreamt uses an original RPG system developed by Adam Baffoni, creator of the popular solo TTRPG Tether.
The core mechanic is simple: when a character attempts something with a meaningful chance of failure, they roll a single twelve-sided die (d12) against a Target Number (TN) set by the Facilitator. Roll equal to or higher than the TN, and you succeed. Roll below it, and you fail.
Characters are defined by a set of Attributes determined by their Specialty. Players can spend Attribute Points to improve their rolls, allowing them to push beyond their normal limits when it matters most. However, pushing yourself comes at a cost. Overexertion can inflict Physical or Mental Stress, and accumulating too much of either causes a character to reach their Limit, resulting in injuries that range from minor setbacks to life-threatening consequences.
The result is a streamlined, narrative-focused system that emphasizes meaningful choices and mounting tension.