LumasDownload the SDK
Every package is a free download. Evaluation output carries a watermark; a licence key removes it. There is nothing to activate — keys are verified offline and your build never calls us.
Current release 4.2.2, built 2026-08-10.
| Package | What it is | |
|---|---|---|
| Windows C/C++ | The engine as a DLL, with the header and both bitnesses. | Download → |
| Windows on ARM64 | A native ARM64 build of the engine for Windows. | Download → |
| Windows ActiveX / COM | A registered COM server, for hosts that cannot call a C DLL. | Download → |
| .NET (source P/Invoke) | The C# and VB.NET bindings as source, plus both engines. | Download → |
| NuGet package | One package, native engines for every runtime identifier. | Download → |
| Linux on Intel | Shared objects for 64-bit and 32-bit Intel Linux. | Download → |
| Linux on ARM | Shared objects for 64-bit and 32-bit ARM Linux. | Download → |
| macOS | One universal dylib covering Intel and Apple Silicon. | Download → |
| iOS | Static archives for device and simulator. | Download → |
| Android | Shared objects for all four Android ABIs. | Download → |
| PHP | A pure-PHP binding over FFI: no compiled extension to match. | Download → |
| Python | A ctypes binding: no compiled module, no build step. | Download → |
| Delphi / Object Pascal | Two bindings: the flat DLL unit and an object wrapper. | Download → |
| ASP.NET Core | A self-contained web sample with the package bundled. | Download → |
| Flutter | A dart:ffi package with natives for five platforms. | Download → |
| Node.js | A JavaScript binding with TypeScript declarations included. | Download → |
| TypeScript | The Node binding with a typed surface and a TS example. | Download → |
What a trial key gets you
Create an account and confirm your address, and we will send you a trial key for the package you want. It carries the Professional feature set, so an evaluation exercises what most people buy.
The watermark is the limit. A trial key licenses any build we released on or before a date about a month out; releases after that need a purchased key. Nothing you install stops working, then or ever.