one dataset · paper, tables, graph, wiki
simgrammar the grammar of simulation

parts

6 mechanics, as Gran Turismo 7 does them

core · 2

control & automation

Embodied skill control

Racing lines, braking points, and throttle control on wheel or pad decide results; GT Sophy is trained to the same physics.

physics & materials

Vehicle dynamics

Tire, suspension, aerodynamics, and drivetrain models per car; tuning parts and settings change handling.

supporting · 4

progression & goals

Career ladder

progression & goals

Collection goals

progression & goals

Scenario objectives

environment & ecology

Weather

core loop

buy or tune a car -> race against AI or players -> earn credits -> expand the collection -> harder events

design notes

Included because it is the clearest shipped case of a learned opponent in a simulation game. GT Sophy, trained with model-free deep reinforcement learning on parallel simulator instances, became selectable as a permanent rival in 2023 and was extended to custom races in 2025, one content update at a time.

appears in

the paper, 3 sections · 3 chapters · 1 episode
paper

5. The structure of the design space

linked in this section of the paper

paper
paper

7. The technique landscape, 2019 to 2026

linked in this section of the paper

paper
paper

Appendix A. Game catalog

linked in this section of the paper

paper
catalog

The catalog

listed with its year, developer, subgenre, and number of mechanics

book
ch 4

Chapter 4. Families

linked from the text

book
ch 6

Chapter 6. Five ceilings

linked from the text

book
ch 7

Chapter 7. What shipped

linked from the text

book
ep 6

What AI shipped

on screen at 4:22 opponents

episode

relations

1 stored edges
influenced by

claims

2 with sources
c01high

GT Sophy 2.0 was added to Gran Turismo 7 as a rival in Quick Race across nine tracks and 340 cars in November 2023.

src-polyphony-2023-gt-sophy-2

c02high

In 2025 GT Sophy 2.1 extended to Custom Race with tuning, tire, and fuel options.

src-sony-2025-gt-sophy-2-1

sources

3
Polyphony Digital (2023-11-02). Gran Turismo Sophy 2.0 permanently added to Gran Turismo 7. gran-turismo.com
Peter R. Wurman, et al. (2022-02-09). Outracing champion Gran Turismo drivers with deep reinforcement learning. Nature 602:223-228

provenance

runs in log/runs
2026-10-24
created2026-10-24-catalog-additionscatalog