Physics you can replay
Rigid bodies, joints, triggers and collision layers on a fixed time step. Run a scene with the same inputs on Windows or Linux and you get the same result, checked every night, so replays and automated tests can rely on it.
Build and ship
Physics you can replay, animation blending with events, and gameplay in TypeScript. Then export one .exe that runs on a Windows PC with nothing installed.
Rigid bodies, joints, triggers and collision layers on a fixed time step. Run a scene with the same inputs on Windows or Linux and you get the same result, checked every night, so replays and automated tests can rely on it.
Engine capture
A jet ski turning, banking and leaving a wake on the ocean (placeholder hull).
Suspension wheels with grip that depends on the surface under each tire, ready-made presets including a drifting kart, and roads built from a file. Boats and other floating craft move on the real ocean waves.
Layer animations by body part (swing a sword while running), mark cancel and hit windows on the clip timeline, and attach weapons and sensors to bones so hits register where the blade actually goes. Feet plant on slopes.
Shipped in v0.7.0Blend between animations, fire events from points on a clip, and let root motion move the character. Feet are placed on the ground with inverse kinematics.
Shipped in v0.6.0Convert FBX, BVH, glTF and Blender clips onto one standard humanoid skeleton and play any clip on any character. A contact-sheet preview shows the result before you import.
Shipped in v0.7.0Save a play session's input in a small file and replay it later at any size and from another camera, for reviews and trailers. A profiler capture can replay the same run against your edited project to check a fix.
Shipped in v0.6.0Run the game inside the editor, slow it down or speed it up, and step out into a free camera to inspect or move things while it keeps running. Simulate runs the game with no player input.
Shipped in v0.6.0Export a single .exe that runs on a Windows 10 or 11 PC (64-bit) with nothing installed, or a Linux build with a tarball or an AppImage. Web export, a static folder for browsers with WebGPU, is in preview.
Shipped in v0.6.0Install, check, update and remove engine versions side by side, start from a sample, and keep every project on the version it was made with. A step-by-step start page that takes you from install to a game you can send someone arrives in the next release.
Shipped in v0.6.0Split-screen play for up to four players with gamepads.
Planned for v0.8.0Closing the gaps so Windows, Linux and web builds get the same features and tests.
Planned for v0.8.0Clearer start-up steps, plain error messages and more samples.
Planned for v0.8.0