Res Mythica throws you into a brutal world of power, betrayal, and monstrous wonders. Forge alliances, shatter oaths, or rise as a legend with a system built for creative roleplay, rising tension, and bold narrative turns. Varied, tactical combat and high-stakes choices drive every session toward chaos or glory. In a land ruled by ambition and monsters, history remembers only the daring… and only you decide how much you’re willing to risk.
The System
The game uses innovative mechanics to create a narrative experience in which the players and the dice lead the story without compromising on tactical decision-making both in and outside of combat. A faction system helps the GM create a rich world and provides plot hooks for players, while bonds and patron deities encourage deep role-play and an immersive dive into classical antiquity.
Tactical
Player abilities and an innovative dice system means every decision matters. The system makes sure you have tactical decisions to make in every scene; interesting and risky decisions exist beyond just combat.
Players need to manage their momentum along the scene, while adjusting the risk they take for every action. Build up power while making sure the enemy doesn’t gain control.
Player-driven
A faction system underpins the whole game to help the GM create a world that feels real. Player actions change the course of the story… and impact the course of history.
Narrative
A core resolution mechanic that puts the story at the forefront and makes every roll meaningful. Let the story develop as choices become ever tougher. The bonds and values mean every character is a different person who evolves with the story.
Narrative choices aren’t just fluff, they’re an impactful game mechanic that is fun to manage. Who your character is is just as important as what they can do.
The World
Res Mythica is inspired by the rich tapestry of ancient cultures, mythologies and politics.
Make it your own
Play in a fantasy setting where the gods are real and magic is perilous, or in the cut-throat historical world of the Roman Republic and its satellite states.
Res Mythica is designed to allow you to make the setting your own. Enemies, factions, player abilities… all are modular to let you play anything from a high-fantasy universe in which magic is pervasive to a grounded historical adventure.
Learn More
Res Mythica is currently being developed. If you are interested in joining a playtesting group, contact @Vesaevus on the SwissRPG Discord. If you think you might be interested in playing the finished game, subscribe to the newsletter.
Downloads
Below is all the publicly available Res Mythica game material. The player’s character creation document, including ancestries, background, culture and discipline abilities will be added shortly, followed by the player’s quickstart rules. The GM-facing rules as well as a full rules document will be available in due time. Subscribe to the mailing list above to be notified when new downloads are added.