Your first computer game in childhood?

My first game was Cossacs. I was 10. Now I still sometimes play it. In 2000s computers could support hundreds of units in this game, so game is good optimized. On modern computer you can run Cossacs back to war with huge armies (2000-3000) without lag, it is super cool to play it online with somebody. Nowedays nobody create such optimized games because of computers powerfullness.