FREE: Sid Meier’s Ace Patrol - Steam Key

The listing, Sid Meier’s Ace Patrol - Steam Key has ended.

Sid Meier’s Ace Patrol - Steam Key
http://store.steampowered.com/app/244070

About This Game
Battle to Rule the Skies!

The skies over Europe are a dangerous place, where ace pilots lead their squadrons to glorious victory or crushing defeat! Take control of dozens of the most famous fighter planes of WWI and head into the dogfight. Roll, slip, and loop to get the drop on enemy aces. Upgrade your fighters over the course of your campaign and promote your best pilots so they learn new skills to give them an edge in battle. Can you change the tide of the war? Or will you go down in flames to an enemy ace?

Key Features:
Advance from Aviator to Ace in over 180 missions using 30 authentic aircraft
Earn promotions, equipment upgrades and advanced maneuvers like rolls, loops and slips
Unlock new Aces with special skill sets to expand your gameplay options
Single Player campaign & Hot Seat Multiplayer missions with leaderboards