SIS/TR: A Rare Geometry for Mothership RPG

SIS/TR: A Rare Geometry for Mothership RPG

“Brooding with 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.

An interactive mini / boss with six sided deployable turrets. Bring it to life in the new book SIS/TR: A Rare Geometry

By Justin Sirois and George Holland. Edited by Jarrett Crader

Content warning. A Rare Geometry has content that people may find disturbing.

How SIS/TR works

Each of the four sides has their own attack or defend modes. Flip SIS/TR to a different side to change modes: attack / shield / hack / retreat (not including face and rear).

The control sheet allows the warden to track hit points per side as well as which side is active. The book and/or operating manual details both SIS/TR’s attack modes and turrets. Each mode/side has its own unique stats that effect how SIS/TR acts and if it can deploy turrets.

Turrets have their own hit points as well as six variable modes with deadly attacks. Once destroyed, turrets cannot be redeployed, but they can repair if they are retracted before they expire. Turret 2, side five example:

Swap / Teleport - Two targets are deemed inappropriately positioned in SIS/TR’s insane model of time-space. SIS/TR rolls to hit the target with the highest defensive stat (AC, etc.) There is no resistance to this effect. Using its particle transpositioning frequency, the turret immediately outlines the forms of the two random targets with a shimmering green contour. The targets switch locations with one another and act normally on their next turn. If SIS/TR scores a critical failure when rolling to hit the targets, the Players may locate their characters anywhere in the room they like. If SIS/TR critically hits the targets, it rolls to hit again. If the second roll hits, the biomatter of the two targets is violently combined and the result is a quivering mass of twisted flesh and gore that will spray stinking fluid and clots of tissue - and dies at the beginning of its next turn - unless nothing short of a miracle is used to reverse the effect.

The Book

80+ pages with rules and stats for SIS/TR as well as a vicious starship adventure written by Justin Sirois and George Holland. 

25 rooms and thousands of ways SIS/TR can attack, infect, and hack their way through your party. SIS/TR is already a puzzle players have to solve — the ship functions as a puzzle within a puzzle as SIS/TR consumes resources, manipulates rooms, and broadcasts horror throughout the captured ship.

It is unknown how the crew of the Vespucci 7 attracted the curiosity of SIS/TR, but it is actively attempting to being order to the natural chaos human life creates. Part rescue mission, part resources discovery, A Rare Geometry is unlike anything your players have ever encountered. A clever crew can even discover SIS/TR’s unique refining abilities, allowing them to craft odd items from its system.