It the first PC RTS to gain popularity that is more or less similar to modern RTSs (they all in 1 way or another been inspired by it or its successors). Westwoo

It the first PC RTS to gain popularity that is more or less similar to modern RTSs (they all in 1 way or another been inspired by it or its successors). Westwood developed a bunch of titles before it (including some very popular RPGs) but their line of RTS are definitely what they're remembered for today!