The Waking of Willowby Hall probably wouldn’t be too difficult to run in Shadowdark. It was designed for Knave 2e.
That one sounds suitably epic, too, while being very easy to grasp.The Waking of Willowby Hall probably wouldn’t be too difficult to run in Shadowdark. It was designed for Knave 2e.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.