Quoted from bean_:Oh yeah - my boys are 11 and 9 and my daughter is 6. Haha - I remember playing World Cup Soccer for hours and hours at a truck stop near my college.
World Cup Soccer is a fun game and easy for non-pinheads to understand. Shooting the goal is always a blast. You might even consider an older SS game or even an EM game as the rules are simple and straightforward for the kids to understand. As an added bonus, if you find the right one they can be reasonably priced.
Your thread title says "what's next?". The only guarantee is that one game will always turn into more games. It's the nature of the addiction I guess.