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Primus Star Core Rulebook 1st Edition
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Primus Star Core Rulebook 1st Edition

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The Core Rulebook is the essential guide to run Primus Star. It contains the rules for
character creation and advancement as a player as well as running the game and
creating encounters as a Game Master.

Use this book to run the game and to craft new characters and worlds to explore.
Primus Star immerses you in a sci-fi world of your design. Explore derelict space
stations and hostile compounds. Fight against organizations and criminal warlords
while seeking fame and fortune. Gain experience as you travel through space with
your crew.

The universe can wait no longer. The future is here.

 Customers Who Bought this Title also Purchased
Reviews (1)
Discussions (5)
Customer avatar
Jonathan M February 24, 2019 12:42 am UTC
If you have any questions or just wanted to talk to other people playing the game, join the Primus Star community on discord! You can join us at !
Customer avatar
Scott M April 01, 2018 4:25 pm UTC
What is covered under "additional rules"? I'm looking for a good system for designing my own starships and maybe even a random star system generator.
Customer avatar
Jonathan M April 02, 2018 12:19 am UTC
Additional rules cover money, vital stats, the in game crafting system, religions, driving vehicles and piloting ships, hospitals, combat rules, and how food works. We'll be releasing an armory in the future and we can work on making rules for designing personal star ships in that. As for a random star system generator, we can possibly create an app on our website We already have a free download for the character sheets there. I hope that answered your question! If you need to ask anything else, we'll try and get back to you as soon as we can. Thank you!
Customer avatar
Jonathan M April 02, 2018 12:27 am UTC
The starships in the core rule book are highly customizable already, though. They have a set amount of rooms in each design and each room can be designed with something in it, like one could be a shield generator and another could be a communication room. There are also slots on each ship for guns. If you're looking for a system like that, that's built into the core of the game. And if you want to get deeper, the scientist class can design their own starships if they focus on making them. They're also able to invent guns and other things. This game likes to promote creativity in the player and game master.
Customer avatar
Kim M March 12, 2018 9:53 pm UTC
A well written and pretty straight forward book that seems like it will be pretty easy to follow. It's nice having everything you need in one book instead of three different books at a higher price per book. Can't wait to actually try a campaign with this new and exciting system and frontier.
Customer avatar
Jonathan M March 12, 2018 10:52 pm UTC
Thank you for your purchase and support! I hope your time playing the game is enjoyable!
Customer avatar
Jonathan M March 10, 2018 5:53 pm UTC
If there are any questions, feel free to ask! I will try and answer all of them whenever possible. It's a new game that uses a few interesting mechanics, so I expect everyone will have a few questions. You can also get exclusive details and content at ! You can also follow us on facebook and twitter at and respectively! Thank you! I hope everyone has fun exploring the universe of Primus Star!
Customer avatar
Jonathan M March 12, 2018 5:21 pm UTC
We've found a few errors when reviewing the core rulebook. There's nothing major, but we will still update the files for everyone. If you have already purchased the game, you should have access to the new files when they're published. Thank you!
Customer avatar
Jonathan M March 15, 2018 6:12 am UTC
A print version should be coming out in the coming week. We hope everyone is enjoying the game so far. We'll release a pre-made adventure module in the future, so keep a look out for that! Thank you!
Customer avatar
Jonathan M March 28, 2018 7:08 am UTC
We're fixing a few technical errors before we release a print version. We should have everything fixed in a few days. Keep an eye out for the hard copy coming out soon!
Customer avatar
Jonathan M June 28, 2018 3:50 am UTC
There are a few mistakes in the enemy section of the book. We apologize for these small mistakes that slipped our quality assurance. We will be re-releasing all the enemies plus hundreds more in our Primus Star: A Hostile Universe book in the future. These enemies will be updated to reflect their actual scores and what they should have as far as stats are concerned. The game, however, is still fully functioning and we hope you enjoy playing it. Have fun, everyone, and thank you!
Customer avatar
Jonathan M June 28, 2018 5:29 am UTC
We are releasing a list of the enemies and their actual stats as a free post on our patreon at
Customer avatar
Jonathan M September 02, 2018 7:02 am UTC
We will be taking down the hardcover book and updating the PDF version for the time being to make sure the game is performing up to our standards. We have improved our quality assurance and wish to make sure all of our products meet our requirements. Thank you for your continued support.
Customer avatar
Jacob R March 10, 2018 12:13 am UTC
Is this "1E" of the book because it uses 1E-style OSR rules?
Customer avatar
Jonathan M March 10, 2018 5:48 pm UTC
1E means it's 1st Edition. We have plans to possibly release a 2nd Edition in the future if we feel that mechanics should be updated, but for now everything is in place and it's a solid game.
Customer avatar
Jonathan M March 10, 2018 5:55 pm UTC
The rules of the game are somewhat new. They use some mechanics from games such as Dungeons and Dragons 3.5 and 5th edition as well as Pathfinder, but all in all it should be considered a new system that makes use of some aspects of the d20 system. I hope this has helped.
Customer avatar
Jonathan M March 10, 2018 9:32 pm UTC
I changed the "1E" to instead say 1st Edition so as to make it more clear.
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File Last Updated:
January 27, 2019
This title was added to our catalog on March 09, 2018.
Evil Pig Productions
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