Warage

Warage is a classic RTS that will take you to a magical fantasy world. In this game you can: manage different units, build structures, upgrade the army, collect gold, chop wood, and much more. There are two warring factions that have different types of units to control on the battlefield. You can build structures in any accessible place on the map. Warage RTS (real-time strategy) has a 2D isometric style. Those who like oldshool games graphics will like it. The game is free and you can play it offline (campaigns only).