Dynamix' Earthsiege was such a magical thing back then. So were Bullfrog's Syndicate, Theme Hospital and Dungeon Keeper. Many, many years ago when Peter Molyneux was not a dumbass but gave us gems like Populous and Black&White.
I loved Earthsiege! IIRC I got the game with an expansion card (STI Lightning 128?), and it really was fun playing with my first flight stick, a CH Products flight stick.
I worked for Interplay back in the 90s. It was pretty great for me, launching my IT career. Working in QA did temporarily ruin my ability to play games for fun though.