The salary for that job is what they are willing to pay you. They probably gave you a low offer, and you ought to be able to get a little more.
1. Negotiate it higher
2. Get a second job
3. Don't take the job
The latest game salary survey doesn't break down the salary for that position, but you can take a look anyway: http://www.gamecareerguide.com/featu...011.php?page=4