From Numenera Into The Odd is a one-page conversion kit for running an Into The Odd game in the Numenera setting.
It's technical and packs a *lot* of info into the page, but it's surprisingly easy to read and digest, and it's a very thorough, very intuitive conversion kit.
Of note, the advancement rules are a little bit closer to Numenera's than ITO's, and they make character growth much more granular. As a result, even if you're not interested in running something set in the Ninth World, if you want to do a long ITO campaign with a focus on more than just dungeon-crawling, you may want to use this conversion.
Similarly, the Expend Effort rules in FNITO would make a great addition to the base Into The Odd game if you want players to have more agency and be a little less at the mercy of the dice.
Overall, this is a really cool conversion kit, and I strongly recommend it to Into The Odd players and Numenera setting fans alike.