Apart from the Zombie campaign i play (see links), i also game the Crimean war, the American Civil war, WW1 and WW2 land battles, Pulp, Vietnam, Modern Conflicts, WW2 Naval, WW1 and WW2 Aerial Dogfights. This covers some of the games i like to play.
I also play Flashpoint Vietnam which are a great set of rules made in New Zealand.
Most games i play are skirmish games, but my Crimean war and ACW are played on a larger scale using 15mm figures.
I am sure if i had the time and money then i would have far more figures and games that i would play.
I also tinker around with what i call Alternative History - creating what if situtations within a historical setting.
This doesnt mean i have alien lizards invading the world during WW2 as can be found in a series of novels.
What it means is that i keep the historical setting and play out what may have been if things had taken a different turn of events, such as what would have happened if Winston Churchill and General Patton entered into a conflict with Russia in 1945, something that had actually been planned for.