Pocket Civilization is a free, downloadable solo civilization building game that’s advertised as being compact enough to play on an airplane.
It looks very cool, and the Board Game Geek reviews are favorable.
ancients
The Caveman Clash Manual
Caveman Clash is a set of free wargames rules for playing skirmishes between cavemen. There also are paper figures if you don’t happen to have cavemen available.
Impetus Basic Rules Update
There’s been an update for the free basic rules for Impetus, a set of ancient and medieval wargames rules.
Ancients By Ral
The Jackson Gamers offer Ancients By Ral, an ancients version of the venerable Rules By Ral system.
Easy Rules For the Battle of Thermopylae
If the movie 300 has inspired the wargamer in you, but not enough to go out and paint 300 Spartans and a couple of thousand Persians, you might want to head on over to the Junior General’s site. There you will find simple rules and paper figures for refighting the battle of Thermopylae