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CrashFX

JWL
JWL
Published on Oct 20, 2026 Updated on Oct 29, 2026
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soft-body crash physics for your car & offline AI cars

features:
- body deformation: dents and crumples that build up
- doors, bonnet, boot and bumpers swing, hang and tear off
- windows crack and shatter, lights go dark
- wheels can be torn off, bent suspension + flat tyre
- smoke, fire, sparks
- crash sfx (optional)
- replay support (session-based)
- idk if it works online

No videos available for this mod yet.

Version 0.3

October 29, 2026

v1.1.2

DAMAGE
- Doors work on all cars now: the whole door panel swings open, hangs by its hinge or tears off, instead of just a loose piece of trim.
- Open doors are no longer see-through from behind: every door now has an inside.

REPLAYS
- Damage now follows the replay: rewinding undoes the dents, slow motion plays the crash in slow motion, and the crash replays as it happened.

TRAFFIC UNDERGROUND
- CrashFX now works alongside Traffic Underground: while Traffic Underground is running, it handles the damage on your car and CrashFX handles the AI cars, so the two apps no longer fight over your car.

UI
- The version number lines up with the title, and the window is a little smaller.
Version 0.2

October 28, 2026

v1.1.1
CAR DAMAGE
- A damaged door, bonnet, boot or bumper that swings ajar now shows its inside and the opening behind it, instead of a see-through hole into the cabin from one side.
Version 0.1

October 25, 2026

v1.1.0
- added environmental deformation (affects WALL materials)
itchbay
itchbay 6 days ago

what folder do i put it into im new got no idea yet

JWL
JWL 5 days ago

@itchbay put it in assettocorsa/apps/lua; For automatic installation, it should work if you just drag 'n drop ontop of Content Manager.

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