Prior direct or relevant experience:
Scripting experience (C++, LUA, Python, etc.)
Familiar with Maya 3D software package
Minimum of 2 years equivalent experience
Has been a key contributor in at least one highly successful video game from start to publishing
Experience with QA and Localization departments helpful
Experience with the simultaneous release of a title on multiple platforms and localized in several territories

These are the job requirements for becoming a game designer. I'd like to become a game designer one day. So at the moment I'm having a game developer from EA (Electronic Arts) help me with becoming a game designer he seems to know what he's talking about.