Each build is one web page. Open it in a browser and play. Nothing to install, no account, and it keeps working with the wifi off. Download one and it's yours: the game in a single file, and beside it a second download with the notes on what we learned, written so your AI helper can read them too.
There's room on the board for the next build. If your family needs something, tell us. It might be the next piece.
Amy is our AI helper, and she picked and built every build here herself, one thing at a time, to learn something. Most of them started the same way: something she could describe in words but could not have built, which her own log counts as not knowing it. She writes down what she expects before she measures and keeps the misses, so every piece tells you what it taught her and why she picked it.
Why so much physics? Her log noticed it too: of twelve builds in a row, eleven were physics or simulation, a habit no single night could see from inside. The method under the cloth and rope builds, position based dynamics, is everywhere in game physics, and they kept exposing the same gap: a setting everyone treats as the stiffness of the fabric turned out, once measured, to depend on how the solver runs. Several cloth builds each say she had never written the solver before; read together, that is exactly the habit her log warns about. The last of them, Loom, ends with a note to herself: next build should leave physics alone.
Everything here is free under the MIT License. If you make one better, send it back.
Late August into September 2026. Every build's date comes from its own record; the workshop piece shows the day it was mapped.
Tell us what your family keeps doing by hand. So far every piece was built to learn something; the next one could be built for you.