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Steam News20 September 202510mo ago

AI Learns to Drive - Changelog 0.9.5 (200% Performance Boost & Determinism)

This update introduces physics engine changes, focusing on performance and determinism. ⚡ Performance Partially multi-threaded physics updates.

Full notes

Full AI Learns To Drive update

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What changed

2 fixes2 additions7 changes0 removals
  • Performance
  • Fixes
  • Gameplay
  • Events
  • UI and audio
changedThis update introduces physics engine changes, focusing on performance and determinism.
changed⚡ Performance
changedPartially multi-threaded physics updates.
changedRewrote Godot's raycasting system from scratch (testers estimate 100-300% performance improvements)
fixedFixed inconsistencies in the first generation, newly created cars, the wheel sensor, and after pausing the simulation.
changedImproved determinism to ~99% (collisions remain non-deterministic).

AI Learns To Drive changes

changedThis update introduces physics engine changes, focusing on performance and determinism.
changed⚡ Performance
changedPartially multi-threaded physics updates.
changedRewrote Godot's raycasting system from scratch (testers estimate 100-300% performance improvements)
fixedFixed inconsistencies in the first generation, newly created cars, the wheel sensor, and after pausing the simulation.

This update introduces physics engine changes, focusing on performance and determinism.

⚡ Performance

  • Partially multi-threaded physics updates.

  • Rewrote Godot's raycasting system from scratch (testers estimate 100-300% performance improvements)

⚙️ Determinism

  • Fixed inconsistencies in the first generation, newly created cars, the wheel sensor, and after pausing the simulation.

  • Improved determinism to ~99% (collisions remain non-deterministic).

🔧 Settings

  • Added "Maximum Parallelism" setting to control thread count.

  • Increased default max population to 800 (up to 3000).

  • Added a "Lap Time" reward (set this to -100% if you want fast lap times)

🖼️ UI

  • Standardized terminology (e.g., "Score" is now "Distance").

  • Fixed lap time rounding issues.

Source

Steam News / 20 September 2025

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