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Solivago is a GM-less worldbuilding game of space exploration. The characters are highly capable scientists on the way to habitable planets over a dozen of lightyears away from Earth - not to claim, colonize or conquer, but to study, observe and return to Earth afterwards. It is a (somewhat) realistic science-fiction game with focus on worldbuilding, imagining the science behind previously unknown worlds and slice-of-life scenes in the scientist's relationships, interspersed with dramatic updates from distant Earth.

In this game you will find:

• Planet creation rules to create varied worlds to explore
• Questions for collaborative setting creation
• Simple rules for GM-less play, to tell a story together

Solivago was created as a submission to the Barcosa 2025: ,,Liebe Grüße aus..." Postkartenjam (translation: "Greetings from..." postcard jam) and is available in English and German.

You can download it for free here: https://crowberrycake.itch.io/solivago


I recently read To Be Taught If Fortunate by Becky Chambers (a great book) and this game is heavily inspired by it. Other influences are The Martian and Project Hail Mary by Andy Weir, Goldilocks by Laura Lam, the 2018 Lost in Space and the 2019 Another Life. Most of the time this is not an action-packed game, but more of a shared worldbuilding experience, for people who like to think about why things are a certain way on a planetary scale - both here on Earth and on imaginary planets far away.

Rolls succeed most of the time (or just complicate things due to unforeseen circumstances), because your scientists are highly capable. Every roll makes you think about and define how things work on the planet you are on - or how things on Earth might progress in the decades that pass.

My favourite part of the game is the planet creation - I tried to make it at least somewhat close to reality and give players the tools to create planets that sound (at least to laypersons) plausible. It's a game that makes you google "how does a planet's magnetic field influence the atmosphere". Did our game portray physics accurately? Probably not. Did we have fun? Definitely yes.

The serpent Jörmungandr is growing, and the world teeters on the brink. Waters rise. Villages vanish. Still, the serpent grows.

Worldbreaker is a one-page tabletop roleplaying game where players take on the role of those who remain. Will you save your community — or will the serpent devour all, before you can achieve your goals?

Included in this game:

• Simple rules for character and opponent creation with free-form abilities
• Roll above roll resultion with rewards for rolling the exact target number
• Wagering your dice! Relinquish dice of a roll, for a reward later
• A level-up system that also works in one-shot play
• A growth tracker, as countdown to the end of the world
• Establishing questions to quickly build nuanced characters and goals
• and more!
• Bonus: character sheets
• Bonus: sample stat blocks

This game was created for the one-page RPG jam 2025. It is intended for one-shot play, but can easily be adjusted for more.

You can download it for free here: https://crowberrycake.itch.io/worldbreaker


As I designed the game I had a grim setting in mind - something that quickly changed, as people said I should keep the goofy snake in there, instead of drawing something more serious. And actually playing the game quickly showed that this was the right choice! How the players want to solve the problem of their community is completely up to them and they never failed to disappoint me with their creative ideas! One of them got the mead of the gods to make the serpent drunk and eat its own tail; while another group retrieved the serpent's feet and convinced it in a "powerpoint" presentation (drawn on the sails of their ship) that the legs should be reattached, so the serpent can live on land, not drowning villages anymore (and dance and be friends with everyone).