A downloadable exploration TTRPG

The settlement’s life support is at the brink.  A solution to this world’s dangerous conditions must be devised & corruption amongst the station leaders must be investigated. But the Void of Space was not meant for Man. These planets are not “Mother” like Earth – you are under a hostile sun.

  • A rules-lite exploration-focused RPG.  There is no combat system - rather the enemy is the brutal environment you are trying to survive in.
  • Rules light but exciting system for Environmental Encounters that encourages risk vs reward decisions.
  • Currency system that allows easy tracking of resources mined from the planet.   Find alien creatures to produce even rarer resources - maybe even the Prime Matter- unlimited potential- itself.  
  • Character Sheets fit on one index card.  
  • Illustrated with numerous digital art techniques including Adobe Fresco, Adobe Photoshop/Unsplash, Inkarnate  and NightCafe Studio.  Additional Adobe Suite images coming soon.

Left "A.C." contributed this and is a member of the East Bay Martian Society

The galaxy recently had a great upheaval.  Now many, seeking to escape corrupt local governors and war-ravished worlds, are desperately taking to space exploration.  It's a hope for a better life.  But at a cost.  The planets explored will include environments not easily inhabitable - volcanic hellscapes, colossal storms, radiation and more.  But with some grit, and a firm faith in the Immutable, maybe, just maybe, you and your brave team of settlers will be able to survive and greet the alien sun, not as an existential threat, but as a friend.  

At the end of each month in 2023, a new pre-made quest- complete with Hex Maps - will be added - so be sure to check back soon.  As playtesting goes on, rules will be updated.

Updated 2 hours ago
StatusIn development
CategoryPhysical game
Rated 5.0 out of 5 stars
(1 total ratings)
AuthorMartian Muckraker
GenreRole Playing
TagsExploration, Fantasy, Hexcrawl, Non violent, rules-lite, Sci-fi, Space, Tabletop role-playing game


Under a Hostile SunvJan-22.pdf 4 MB
Under a Hostile Sun - Reference 22-Jan-23.pdf 147 kB
Creative Commons System Reference 71 kB
Editable Sample Charactersheet Player Reference.docx 555 kB

Development log

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