At Catalyst we make mods and custom content for Valve's Source engine. Our current project is Purgatory.
No games, mods, engines, software or hardware appear to be published or in development by Catalyst. We suggest you add games, mods, engines and hardware you are developing here (or update existing games, mods, engines and hardware on the site which should be linked with this Developer).
If this profile is not used to publish or develop games, mods, engines, software or hardware we recommend you contact us and we will move it to the groups section and this page will display a blog instead.