Echoes in the Vacuum by Joseph Mohr is a role playing game supplement published by Old School Role Playing for use with Cepheus Engine. As such, it is covered by the Open Game License and some parts are considered to be Open Game Content as a result.
The supplement is available as a 15 page Pay What You Want PDF from DriveThruRPG. Two pages are the front and rear covers, three the front matter and three the Open Game License.
The opening paragraphs explain that a vacuum world on the edge of the Sonora sector – the adventure is set in the Frontiers of Space – has been surveyed by a mining company and an unusual object was discovered in a crater. The characters are hired to investigate this, see if anyone claims the world and are offered a share of any alien artefacts.
Patron has details on the employer.
Arrow Mining Consortium has details on the company and its practices.
Complications are things that are not known or which can go wrong.
URD-23X has details on the planet.
Kryon Empire has details on an alien empire that claims the world.
Hazards of a Vacuum World looks at the dangers on the planet.
Potential encounters in the System is a 2d6 table of encounters, which can be anomalies, Kryon Empire ships or pirates.
Potential Encounters on the Planet has a 2d6 table of things to encounter.
A Wrecked Space Ship has details on the crashed ship.
An Alien Artefact has details on the artefact.
Fitting an Alien Part on a Space Ship looks into doing this and what might happen, with a TPK being an option.
Mission Completion looks at what’s needed to successfully complete the adventure.
The final page of content has a map of the planet.
Echoes in the Vacuum in Review
The PDF lacks bookmarks and is long enough with enough different sections that these would have been useful. The text maintains a single column format and some minor errors were noticed. Bar the map and covers, there are no illustrations. Presentation is okay.
This is a comparatively straightforward adventure in which the characters have to find an artefact, potentially deal with various hazards, and bring the artefact back. With the added possibility that they may accidentally blow their own ship up if they play around fitting the artefact to it. One minor note is that this is an airless world, but a world as volcanically active as it is would likely have an atmosphere, just an extremely thin one. Echoes in the Vacuum can be found by clicking here.
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