Tabletop Conquest is a free dice game. From the description:
You sit in your hotel room, bored. You look down at the cheap pen and four-page pad of paper on the desk. Why not play a wargame?
Tabletop Conquest is a solo dice wargame played using a single six-sided die. You play the commander of a medieval army, conquering a randomly-generated land. Can you find the capital and destroy its defending army before the troops in the countryside wipe you out?