Castaway
Castaway is a rules-lite shipwreck survival horror RPG compatible with Mörk Borg. Stranded on a hostile island, players must manage exposure, craft shelter, hunt, and gather while facing mysterious encounters. Classless and brutal, it emphasizes resource scarcity and environmental danger over combat. Ideal for fans of Robinson Crusoe with a grim OSR twist.
OSR/Mörk Borg lineage • d20 mechanics • Classless • 2-5 players + GM • Medium prep • Survival-focused • 2-4h sessions
Castaway plunges players into a brutal shipwreck scenario where survival is the only goal. Stranded on a remote island filled with hostile wildlife, scarce resources, and mysterious ruins, players take on the roles of unfortunate souls fighting against the elements.
Theme and Setting
The setting combines the oppressive doom-metal aesthetic of Mörk Borg with the desperate isolation of classic survival literature like Robinson Crusoe or The Mysterious Island. The island itself is a character—ever-changing, dangerous, and indifferent to human suffering.
How Play Feels
From sun-scorched beaches to dense jungle interiors, every environment presents unique challenges. The game encourages emergent storytelling through its encounter tables, weather systems, and the gradual revelation of the island's dark secrets.
What Makes It Distinct
Survival Systems Castaway's heart lies in its comprehensive survival mechanics. The game tracks exposure, hunger, thirst, and fatigue—each capable of debilitating or killing characters.
Where It May Not Fit
You want a very light rules load You mainly want short standalone sessions with minimal carryover.
What this game is about
A strong fit for groups that want tension, danger, and unease to stay active at the table, with exploration-Driven helping define the experience.
Structured data and an explicit decision profile JSON document are available for remote agents.