# sOURnd for games

> Every sOURnd engine, inside your game. One C library, real-time safe, with no account, licence check or network call at runtime. No per-game fee and no royalty.

## What you get

- **69 effect engines, and synths too,** behind one small C interface: reverbs, delays, filters, distortion, dynamics, modulation, pitch and more. Some are free.
- **Effects on your game's audio and instruments your game plays.** Put a reverb on a bus, a filter on a voice, a synth under a note. The engines never generate music.
- **Built for the audio thread.** `process` is real-time safe and in place. Parameters can be set from the audio thread. State saves and loads, and newer engine versions keep loading older saves.
- **Nothing to phone home.** The library is linked into your game. Your players need nothing from sOURnd.

## How it fits in a game

The library is the same one plugin makers use: a static archive and one header, [the C ABI](https://sournd.com/docs/abi/). Call it from C or C++ directly, or from any engine that can call C.

```c
sournd_engine *reverb;
sournd_engine_create("org.sournd.reverb.roomette", &reverb);
sournd_engine_prepare(reverb, 48000.0, 1024);
sournd_engine_set_param(reverb, 0, 0.35);
sournd_engine_process(reverb, in, out, 2, frames);
```

- **Today:** link the C library yourself, on macOS, Linux and Windows. Engines take mono or stereo buffers.
- **On the way:** ready-made plugins for FMOD, Wwise, Unity and Unreal, and builds for iOS, Android and consoles. [Tell us what you ship on](mailto:licensing@sournd.com?subject=sOURnd%20for%20games) and we will tell you where it stands.

## What it costs

- **No game fee and no royalty.** A game is licensed the same way as a plugin: buy the engines you use once, or hold a plan when you release. [Pricing](https://sournd.com/pricing/).
- **Releases stay licensed.** A game version released with engines you own, or while your plan is active, is licensed for good.
- **Some engines are free,** with no account or email.

The library is built for macOS, Linux and Windows today. Other platforms open as their builds are ready.

[Full licence terms](https://sournd.com/docs/licensing/#games) · [Browse the engines](https://sournd.com/engines/)

## For your AI assistant

Paste this into your coding assistant:

```text
Read https://sournd.com/llms.txt, pick a sournd reverb for a cave ambience bus and add it to my game's audio code through the C ABI.
```