I recently discovered for myself Panzer Corps, Panzer General II and Open Panzer. And i liked this stuff, its easy to play from time to time, and its fun brain trainer.
What else is there available in the genre /v/ can recommend?
Have troubles with Panzer General II low resolution, and open panzer flickering in full screen like crazy, no information on the internet how to increase Panzer General's own base resolution for whatever reason. But i like PGII for having amazing amount of campaigns and mission more than the rest.