Are you old enough to remember the DwarfStar board games? If so, then you probably have the same fond memories as I do. One of my favorites was Goblin. In it, players take turns pillaging and plundering a hapless valley.
GMT Games offers a free download of a Battle of Agincourt game. If you’re familiar with their commercial board war games, you’ll know that they have wonderful graphics and gameplay, both of which are on display here.
Ok. So its not really miniatures related, but it’s still really neat. Ravensblight has a downloadable game called Midnight’s Banshee which is a cross between a board game and a foldable paper model. The goal of the game is to collect five skulls from the tombs in the graveyard. But be careful, for you never know which one contains a vampire. There’s a clever spinner under the game board which randomizes the locations of the vampires.
Warpspawn games has a vampire hunting game called Methuselah designed to be played on a chessboard with a custom set of cards. One side plays Dracula and his minions, the other the vampire hunter and his assistants.
I think that some of the ideas could easily be lifted for use in more traditional miniatures games.