| Gray Matter Interactive Studios, Inc | |
| Gray matter.jpg | |
| Type | Merged |
| Founded | |
| Defunct | |
| Headquarters | Santa Monica, California, USA |
| Products | |
| Parent Company | Treyarch in 2005 |
| Website | http://www.treyarch.com/ |
Gray Matter Interactive Studios, Inc. was a computer game developer, which was acquired by Activision in January of 2002. Gray Matter was previously known as Xatrix Entertainment, Inc.