Black Market:
Successfully complete all campaigns with all characters to unlock the Black Market icon at the main menu. This will allow you to buy previously unreleased characters, maps, campaigns, and movie clips.
Bonus units:
At the main menu, select the "Bonus Items" option to buy the indicated unit for the corresponding amount of Empire points:
- Dark Ram: 150 Empire points
- Dopple-handers: 100 Empire points
- Genoese Crossbowmen: 100 Empire points
- Knights of the Round Table: 200 Empire points
- Mons Meg: 150 Empire points
- Swiss Pikemen: 100 Empire points
- War Wolf: 150 Empire points
- Welsh Bowmen: 100 Empire points
Bonus maps:
At the main menu, select the "Bonus Items" option to buy the indicated map in Empire Map mode for the corresponding amount of Empire points:
- Agincourt: 250 Empire points
- Archipelago Large: 200 Empire points
- Asia Major: 300 Empire points
- Bridges Large: 100 Empire points
- Castles: 150 Empire points
- France: 100 Empire points
- Hannibal's Crossing: 250 Empire points
- Hastings: 250 Empire points
- Khyber Pass: 250 Empire points
- King Of The Mountain: 300 Empire points
- Outremer: 150 Empire points
- Skirmish - Desert: 250 Empire points
- Skirmish - Plains: 250 Empire points
- Swamplands: 150 Empire points
- Valley: 100 Empire points
