Battle Merchants is an economic game set in a fantasy land in which players manufacture four different weapons, then sell them to various warring races. Demand for each type of weapon differs throughout the game, but a well-crafted weapon will last longer.
On each turn, players can forge weapons, sell a weapon, upgrade craft (to build better weapons), or take a Kingdom Card (for special powers). There is a possible fifth choice available (Forge and Sell a weapon in the same turn) for players with a high-enough level of craft.
Players earn money for selling weapons. It's permitted (and encouraged) to sell your weapons to both sides of the same battle.
The game takes place over four seasons in one game year. At the end of each season, the races fight with the weapons the players sold. Weapons are at risk of being destroyed in a battle, but surviving weapons earn money for victory. After all, someone has to get paid for sharpening all those weapons..
The player with the most money at the end of the game wins.