$39.99
Limited Edition on 250 made - SISTR: A Rare Geometry for Mothership RPG Operating Manual for Sci-Fi Horror RPG
80 page A5 Hardcover with rules and stats for
SIS/TR as well as a viscous starship adventure
written by George Holland and Justin Sirois.
Book specs: sewn binding, printed endpapers,
A5 size, quality interior paper stock.
“Brooding atmosphere, a.i. gone wrong, and a rich tapestry of gore-soaked hallways ringing out with the screams of the damned await you in SIS/TR: A Rare Geometry. If you like your horror Weird, you won't be disappointed. This thing drips.” _ _ _ Jarrett Crader
Mothership RPG
OSR
1-2 weeks
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Aug 20, 2026
Great quality, sturdy bound book
Jan 17, 2026
Looks great. Fast shipping. Thank you.
Oct 23, 2025
Absolutely fantastic quality and shipping was extremely fast.
Nov 13, 2024
Fast delivery! Very well packed!
Nov 9, 2024
Great additional Mothership module! Highly recommend!