v0.3: The Grammar of Simulation

The Grammar of Simulation, version 0.3 (2026-10-31). This is the first tagged release of the paper and of the dataset it is built from.

• Dataset: sha256 6e87b0ed28e958d2f6a7476f7ceb09782b896f524fc8d0527b7477b8ce179a77. It holds 179 games, 199 mechanics, 46 techniques, 43 opportunities and 709 sources, recorded across 69 runs under contract 1.2.
• Read it: at https://simgrammar.com/paper/, or as the attached PDF. The PDF is built by make pdf with tectonic, deterministically, from this commit.
• Cite it: CITATION.cff at the repository root. Please add the dataset hash above, because the data keeps changing between versions.

Since the outside reviews of 2026-10-31, this version adds:

• a related-work section, a data availability appendix, and a second-rater robustness check (§5.6);
• a tag audit of all 179 games, with every tag it changed now sourced, and the number of clusters re-selected by its stability rule (22);
• a citation file, a PDF build, and site fixes found in review, including at phone width.

The episodes and shorts that go with this version are in release videos-2026-10-31b.