Complex sentence: The game's popularity prompted Bill Gates to consider buying id Software briefly and led for Microsoft to develop a Windows 95 port of "Doom", their team led by a then-employee Gabe Newell, to promote the operating system as a gaming platform.
Split into simpler sentences: The game's popularity prompted Bill Gates to consider buying id Software briefly. This led Microsoft to develop a Windows 95 port of "Doom" to promote the operating system as a gaming platform.