I still have SimCity 3000 on my Old PC - Running in Win '98.
It still works - and I have the Downloaded Architect Pack, to design your own Buildings.
They have to be put in, to replace existing Buildings.
I have ALL of the Cheats - gives you Everything without having to wait for different time periods.
Also - do Everything for Free, and get some free Dosh ( only once though ).
All you have to pay for is the Wages of City Employees.
I love that Game - but since I got my new PC I hardly ever use te old PC.
I do not have spare Monitor.
Also - Simcity 3000, Populous Undiscovered Worlds, and lots of other Games - onlt run on Windows '98, and loads of them you just cannot get anymore. But I have them still.
I also like playing Doom and Doom 2 - I have all the Cheats including Invulnerability.