A simple turn-based artillery game and also a real-time strategy game.
...A simple turn-based artillery game and also a real-time strategy game in which players can counter each others' weapons with other creative accessories, shields and tactics. Test your skill in timing, aiming and judgement of distance, move around on the landscape, or outsmart your opponent economically.
Greatturn is a specialized extension of Freeciv featuring daylong game turns with large amounts of human opponents per map. This allows for optimal timing to build up strategic plans and readapt them to the circumstances of each turn.