Ok. This isn’t about Miniature Wargaming, but I’ve found that miniature wargamers often are lovers of fantasy and science fiction stories. The Baen Free Library has online versions of lots of Baen novels, including works by David Drake, Eric Flint, Andre Norton and more.
Pictors Studion has an English Civil War rules adaptation of Games Workshop’s Warmaster rules.
Here’s a paper model of a medieval watchtower in 1:140 scale. The site is in German and the babelfish that I used wasn’t very good in translating it, so I can’t tell you much more. 1:140 scale is probably not good for most miniature wargames, but you could easily scale them up when you print.
Admiralty is a set of free miniatures rules for the age of fighting sail. Its designed for 1/2400 miniatures. The authors write:
Admiralty is a set of miniature wargame rules that re-create battles from the age of the fighting sail. The game concentrates of the core features of period naval combat including sailing, cannon fire and boarding actions. The rules are geared to allow large battles to be fought over realistically scaled areas of “sea” as player struggle to pummel, dismast and capture their opponent’s vessels. The rules are split into six sections, each of which deal with a particular aspect of the game. Playing aids such as ship log, firing arc and the all-important combat chart can be gotten on the main Admiralty home page.
The Alternate Realms site has several nice cardstock buildings, including some huts and a chapel. The page also has a couple of tanks and a science fiction walker vehicle. Finally, there’s a model of St Michaels tower on Glastonbury Tor (sp?).