6/66 Oh. My. Gaben.
(Sorry for returning this from a week of being dead, trapped in page 2.)
In XCOM, you're just playing as Ender Wiggins. Proof: Have you PLAYED XCOM?
What were your first childhood videogames? I'm going to sort some of mine below by genre.
First shooter game: Star Fox 64
First FPS:Turok 2: Seeds of Evil
First racing game: F-Zero X
First turn-based strategy game: Heroes of Might and Magic 3