I know plenty of us have been playing World of Tanks for a long time now, so I figure there is interest for another Tank sim-type PC game here too.
War Thunder started out as a primarily air combat flight sim but has recently released playable tanks in open-BETA. Right now it's just German and Russian, but it's always expanding.
Fair warning, it's not like World of Tanks... this isn't arcade. It's very realistic in tank motion and control, so even driving can be tricky. Aiming and shooting at distances over 500-1500m is common.http://warthunder.com/
Tiger I - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant