A small step for my son, a giant leap to RPG?

After having seen E.T. with my four (and a half - it's important for him that I mention it) years old son I decided it was time to play a D&D-like game: HERO, Immortal King: The Infernal Forge.

Not an unforgettable game, BUT, maybe the first (little) step to RPG?!  ;-)

1775: Rebellion

Last Saturday we played 1775: Rebellion.

The system is simple (and easy to learn), yet deep and full of strategy.
Can't wait to play it some more.