Three of the very best RTS games have been released on GOG this week.
Supreme Commander Gold Edition
https://www.gog.com/game/supreme_commander_gold_edition
Supreme Commander 2
https://www.gog.com/game/supreme_commander_2
Supreme Commander Gold Edition
https://www.gog.com/game/supreme_commander_gold_edition
Supreme Commander 2
https://www.gog.com/game/supreme_commander_2