Rogue Planet 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 the characters are approached in the Sonora sector – the adventure is set in the Frontiers of Space, though this isn’t stated – by a scientist who wants them to visit a rogue planet and answer some questions.
Patron gives some details on the patron.
Complications are various problems that the characters could encounter.
Meteor Activity explains that meteor showers regularly hit the world, despite being in interstellar space where matter is rather rare.
Key to UX3-392 details three locations on the planet.
Mission Completion Objectives are what is needed to be successful.
The final two pages of content have maps of the locations and a planetary map.
Rogue Planet in Review
The PDF lacks bookmarks and, though short, has enough sections that these would have been useful. Navigation could be better. The text maintains a single column format and a few minor errors were noted. There are no illustrations bar the covers and the maps. Presentation is adequate.
This adventure has the characters just having to visit the planet, explore some ruins and get the needed answers from holodisks (which are somehow still usable after who knows how long in vacuum). The planet used to be in orbit around a star, but was blown out of orbit during a nuclear war thanks to an unusually large device being detonated. Shades of Space: 1999 here, both in that the device didn’t shatter the planet and that it seems to have been travelling at an improbable speed. The main problem the characters have is not accidentally detonating an amazingly still-functional nuclear device and causing a TPK. The yield of the bomb is given; frankly, it doesn’t matter what size a nuclear bomb is if you’re standing next to it when it detonates. Rogue Planet is a short, simple adventure, with some parts that don’t measure up when investigated too closely, and it can be found by clicking here.
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