Real-time raytraced audio for any game, on any platform. Free for non-commercial use.
Audio that reacts to your world, in real time.
MufflingReal-time muffling with occlusion and permeation rays
ReverbAccurate echo simulation with various materials
AmbienceAmbience detection from skybox intersections and permeation
Accessibility3D audio visualisation and in-depth customisation
Vercidium Audio has no dependencies and runs on every platform.
Production ready
Currently testing
Unreal Engine plugin
Console SDKs
2D SDK
Godot C++ plugin
GPU acceleration
Runtime mesh deformation
Vercidium Audio compiles to WebAssembly and runs in the browser. Try the sandbox below.
This sandbox runs in 2D so the rays are easy to follow. The simulation is fully 3D.
Thousands of rays originate from an emitter and collide against the world.
Rays are cast in real time and automatically update when the environment changes.
Support for cubes and prisms
Spheres, cylinders and cones
Triangles, planes and meshes
Occlusion and permeation rays determine how muffled each sound is.
Muffling documentationDirect line-of-sight occlusion tests for speed
Geometry permeation for realism
Rays lose energy when bouncing off geometry and travelling through air. The returning energy is used to produce EAX reverb that matches the environment.
Reverb documentationReturning rays are occluded by geometry
Echograms capture how reflected energy arrives and decays
Geometry, materials and air absorption all shape the reverb response.
Each material has absorption, scattering and transmission properties
EAX parameters are calculated using customisable formulas
Ambience volume is calculated from skybox intersections and geometry permeation.
Experience smooth transitions from close-feeling indoor environments, to airy outdoor scenes.
Listen Ambience documentationOutdoor detection via ray-skybox intersections
Geometry permeation separates underground bunkers from wooden sheds
By rendering symbols where rays bounce, 3D audio can be painted directly onto the world.
Visualisation documentationConvey directional audio by rendering ray bounce positions
Render custom icons for each type of sound
To suit any game and hardware, a wide selection of performance, technical and stylised settings can be customised by both players and developers.
Custom ray count
Custom bounce count
Custom materials
Custom formulas
Game engine plugins handle the heavy lifting for beginners, and cross-platform SDKs provide low-level APIs for experts.
The C SDK and Unreal Engine plugin will be available in late 2026.
Godot plugin RoadmapGodot and Unreal plugins for ease-of-integration
C# and C SDKs for maximum performance
Vercidium Audio uses an innovative raytracing algorithm that runs on background threads on the CPU. Smart caching and event-based updates ensure low latency and low CPU usage.
Try the demo Run benchmarksHigher ray counts can be achieved by dedicating more threads to audio raytracing. Compute shaders are on our roadmap.
The most frequently asked question: how does Vercidium Audio compare to Steam Audio?
Vercidium Audio offers a cleaner API, supports permeation and curved surfaces, and the flexibility to edit everything in real time.
Compare with Steam Audio All FAQsEdit everything in real time
Supports permeation through geometry
Supports curved surfaces
Smart caching for improved performance
Vercidium Audio is free for non-commercial use. A license must be purchased before shipping in any product that generates revenue, including games, apps, or tools.
For hobbyists and small projects
Perfect for indie game devs
For larger teams and projects
© Vercidium 2026