World of Warcraft workers have voted to unionize the popular video-game franchise, expanding organized labor’s new foothold at Microsoft Corp. by around 500 employees.
In truth I don't think many came after Warcraft 3, but The Frozen Throne expansion would come the following year and WC3 would maintain a pretty impressive player base over the next 10 years.
Sins of a Solar Empire released in 2008, but by that time the RTS genre had fizzled out and most entries would fit more into 4X or Grand Strategy.