I don't know if you can consider Steam competition. What GOG does and what Steam does are very different. There is a certain amount of crossover, sure. That's only increasing with Steam getting more old games and GOG getting a client. But even so, DotEmu is far closer in terms of business model. To have them continually snapping at GOG's heels would have been good news for both companies.

So why not on GOG yet?

well, the Sudden Strike series is now available on Steam

http://store.steampowered.com/search/?term=sudden+strike

Check the date. It was 3 years ago.

There is a high probability that these games will come to GOG.Kalypso is the publisher.We already have the Tropico games so.... ;).Can't wait to be honest.The first Sudden Strike is very unique,and has a very pleasent vibe.Cheers

Oh yep! Definitely, man. It's good for newcomers alike to taste a bit of this great series, too, since SS4 is almost there.