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
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-04-21
From Wishlist to Courtroom: The Steam Lawsuits Explained
There have been numerous Steam court case lawsuits throughout the years and ever since the start of the year they have made the pile even bigger! We decided to check out some of the latest accusations against the popular gaming platform as well as go through some of the previous cases that caused a stir of Valve legal issues in the past! Gabe Newell and Valve have definitely not been strangers to the court system…
As you probably know, in a huge variety of game titles there are usually a lot of mainline task objectives, but very often there are multiple side quests that would advance you further in the gameplay. This is exactly why we decided to run a Side Quest promotion on our YUPLAY site. In order to participate in it you have to make an order over 20€ between 17.04.2026 18:10 CET and 20.04.2026 02:00 CET, and you will get a 1€ voucher for next purchase…