Strategy game Age of Wonders 3 is currently free to download and keep forever from Steam.
The promotion is tied with the upcoming release of Age of Wonders: Planetfall, the next strategy game from developer Triumph Studios. If you download Age of Wonders 3 during the promotion period (11-15th July), you get a 10 per cent discount on Planetfall.
Age of Wonders 3 is a solid fantasy strategy game that mixes empire building with role-playing and combat.