I gave Sonnet 5.5 full artistic control for this game and told it to create an atmospheric action/puzzle RPG across 5 biomes, 5 guardian boss fights and it delivered, with some handholding from me.
Understory is entirely drawn with code and made in a couple days.
I am still constantly blown away at how much "taste" the new Sonnet and Opus 5.5 has.
The ending is really poignant. Highly recommend spending the 20-30mins to get to the ending if you have the time.
The game is built on ThreeJS with procedural 2D art made by code.
You can play Understory here (Desktop Browsers for best experience):
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Understory, an atmospheric RPG drawn entirely with code
Danny Limanseta gave Sonnet 5.5 artistic control to make Understory, an action-puzzle RPG across five biomes with five guardian boss fights. Built in a couple of days on three.js with procedural 2D art generated by code.
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- Made with
- Sonnet 5.5, three.js
- Role
- Game designer, co-founder of Nurture and Reroll
- Posted









