Welcome to Double Proficiency!

Our Projects

Herbalist’s Primer
A book on medicinal and magical properties of real-world plants, set up as a system-agnostic guide for players and GMs. Chock-full of botanical and occult research, illustrated through-out, and ready to use as a RPG session prep material or an in-game textbook for the party’s herbalist and alchemist.
A hundred illustrated entries on plants (medicinal, psychoactive, magical, and poisonous), botany and alchemy lore, magic potion recipes, and a pile of RPG tools, easily adapted to any tabletop RPG game.

Project Aphelion
An upcoming tabletop role-playing game set in the Solar System in not that far future.
Project Aphelion features a deep, but easy to grasp and consistent rule set, allowing the new players to jump in and enjoy themselves without worrying too much about messing anything up.
Using just ten-sided dice, the rules balance the cleanliness and complexity, giving all types of player characters something to be excited about. The Solar System is a big place, and there’s enough to do for soldiers, communication officers, envoys, pilots, bandits, medics, hackers, scouts, smugglers, and movie stars.
The alpha version of the rules are done, and the game system is now in the play-testing phase. Jakub is about to start some campaigns soon, so if you’re interested in playing this hard sci-fi TTRPG with elements of 4X strategy board game, let him know ASAP!

Globetrotter’s Guide to Greenery
A series of 12-page PDFs introduces various biomes, their signature plants, and a handy list of descriptors for all of the senses – now your player characters can not only ‘see’ but also ‘hear’, ‘smell’, ‘taste’, and ‘feel’ the world around them. Devised as a quick reference during the game, each PDF covers one specific type of terrain.

Wayfarer’s Deck
A series of 50-card decks with encounters, wonders, mysteries, puzzles, and findings provides a convenient way of creating engaging situations for the players.
The cards introduce a variety of encounters and don’t dictate the solutions. You’re never forced to fight whatever you’ve found, and the player have a full agency to do whatever they wish. There are no stat blocks and no answers to the mysteries – you’re free to take the situation wherever the inspiration takes you.
Patreon!

Help us fund out projects by joining our Patreon! Every Patron of the Champion level and higher receives a monthly bundle of brand-new, exclusive RPG materials, chapters of our books, illustrations (complete with a commercial license for use!), and more!