Inverecondo - 1 page version

Full NSR game in one page. 

You want both the lean 1d20 simplicity of OSR games, and the two-tier success levels of PbtAs? You want easy rules and theater of the mind, but don't like a dagger and a spear having the same effect? You want enemies with a super simple stat bloc, but also capable of special tactical effects? Alright, then you might like this.

• Single, lean d20 roll with 2 levels of success: Partial and Full
• Classless
• Single roll for combat action,  different if you are on the offensive (have momentum) or on the defensive (do not have momentum)
• 9 stats, to be combined 2 at the time
• Enemies characterized by the kind of bad things they can do to you

Inverecondo is an Italian word meaning shameless and indecent.  While playing NSR and OSR games both solo and with awesome friends, these rules emerged autonomously. They answer the question: Can you cram a sort-of-crunchy, ungodly kitchen-sink hack into 1 page?

Made for  https://itch.io/jam/one-page-rpg-jam-2026

No AI, conceived and written by a human.

Cover image: The book of romance, edited by  Andrew Lang, 1902. Public domain.

(TTRPG free resources, agile reviews, and solo actual play: https://kindofold.substack.com/.)