Projects Using Jolt

Godot Jolt - Godot extension that integrates the Jolt physics engine
Horizon Forbidden West - An open world action RPG adventure.
Light Tracer Render - A rendering tool, uses Jolt for object placement. See this announcement.
NeoAxis Engine - A 3D game engine. See this announcement.
Sceneri - A mobile app for creating and sharing 3D games and experiences. See this blog post.
Substrata - A metaverse platform.
VPhysics Jolt, a replacement for Ipion Virtual Physics in the Source Engine. Can be used in e.g. Garry's Mod.
X4 Foundations - A space simulation game. See this announcement.

If your project is using Jolt, open a discussion or send a PR to add it to the list.