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Cover of The Siege on Harrowfen Keep

The Siege on Harrowfen Keep

Solo roleplaying game · by Triple Games Online · in English
Published 16 October 2026 · On Quisicosas since 18 October 2026
Featured in the newsletter of 18 October 2026 (on Substack)

What it is about

Twelve nights. One warden. The garrison is gone. The stores are low. The last letter from the Reach says to hold for twelve nights. The Siege on Harrowfen Keep is a solo siege-survival tabletop game set in Elios, the world of Against the Dark . Roll the fen into being, ration what little you have and shoot whatever crawls out of the reeds. By day, prepare. By night, hold. Take two actions each day: hunt, scavenge, rest, fortify or rebuild a wall, light the braziers or venture into the fen for supplies. At night, creatures advance towards the keep. Watch the breaches and keep your Resolve from running out. On the ninth night, the Thing in the Water rises. Three nights remain. At the table One player; about an hour. Two d6, one d4 and a pencil. A standalone 16-page illustrated rulebook. No other rulebooks required. Four PDFs — v3.4 Rulebook A5: individual pages in reading order. Print Booklet A4: double-sided print-and-fold edition. Play Sheet A4: Warden’s tally and fen map together — free. Map A4: enlarged standalone map, key and shooting ranges — free. Rulebook editions: £2.99 or more . Both play aids are free downloads below. Printing Print the A4 booklet double-sided at 100% / Actual size, flip on the short edge, then fold the sheets together. Print Play Sheet A4 in landscape and Map A4 in portrait. Use Fit only if your printer requires extra margin. Playtest version — feedback welcome Any and all feedback on the mechanics is greatly appreciated. Leave a comment with the version played, what happened and anything that needs another look. Game details, free aids and more from TR|||PLE GAMES → AI was used for the illustrations (I’m not an artist). All mechanics, game design and narratives are by me—a real, actual human. Explore more on itch.io The Crypts of Voryndral — a standalone solo or co-operative dungeon crawl. The Long Descent — a free solo dungeon crawl on a bookmark. For new games, free extras and playtest updates, follow TR|||PLE GAMES on itch.io . Add this release to a collection if you would like to return to it later.

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