European Air War has three modes: a Quick Start option, which allows immediate undefined play; a Single Mission option, which allows selection of aircraft and mission type, and a campaign mode called Pilot Career.
The Pilot Career mode, allows the user to take the role of a pilot in the RAF, Luftwaffe or USAAF and play in any of three time eras, the Battle of Britain in 1940, the Allied Air offensives in 1943, and the Air offensives before and after D-Day until the end of the war in 1944–45. During a Pilot Career player actions will directly affect the progress of the war, including delaying or bringing forward the invasion of Europe. Players may also rise up the ranks, starting as a non-commissioned officer to full officer commanding a fighter squadron (or staffel) and assuming responsibility for the men and machines under the player's command. As a squadron commander a player can select the rosters and weapons loadouts for use in missions, selecting between disposable fuel tanks, rockets, or bombs to assist in completing assigned missions.
The AI in European Air War is flexible, with several difficulty settings that can be altered by the user to ensure the game remains challenging for a long period of time. AI pilots within the player's squadron can be controlled by the user in Quick Start and Single Mission options, and gradually become available as the player receives promotions within their squadron in a Pilot Career.
The game won Computer Games Strategy Plus' 1998 "Simulation Game of the Year" award. The staff wrote that the game brought the fine balance of campaigns, flight modeling, graphics, and gameplay.[15] It similarly won Computer Gaming World's "Best Simulation" award, and the staff raved that it captured the feeling of being in a living, unpredictable combat environment better than any other WW2 flight sims.[16] It also won "Best Simulation of the Year" at IGN's Best of 1998 Awards,[17] "Simulation of the Year" at GameSpot's Best & Worst of 1998 Awards,[18] and the Best Combat Flight Sim award at the 1998 CNET Gamecenter Awards.[19]
The staff of PC Gamer US nominated the game as the best simulation of 1998, although it lost to Falcon 4.0. They wrote that the former was "easily the most engaging and authentic-feeling WWII sim" of that year.[20]
^Berg, Gordon (December 28, 1998). "European Air War". IGN. Ziff Davis. Retrieved August 24, 2021.
^Poole, Stephen (February 1999). "European Air War". PC Gamer. Vol. 6, no. 2. Imagine Media. Archived from the original on March 10, 2000. Retrieved August 24, 2021.