Complex sentence: The original game, all seven expansion packs, and the two exclusive deluxe edition content packs constitute the first generation of the series on the P.C. All P.C. releases in this generation were developed by Maxis.
Split into simpler sentences: The original game, all seven expansion packs, and the two exclusive deluxe edition content packs constitute the first generation of the series on the PC. All PC releases in this generation were developed by Maxis.