Infinity has around 50 licensed jet aircraft representing modern designs from the United States, Europe, and Russia, with the F-4 Phantom as the player's first plane.

Further updates since the game's release gave players a chance to use some of the Ace Combat franchise's iconic superfighters as well as the Japanese ATD-0 Shinshin technology demonstrator.

The Supply Tickets are to be exchanged in a game catalogue for certain special airplanes (except for aircraft that are tournament rewards), skins and logos, radio messages, and nicknames.

In mid September 2015, the game's 11th update was released and introduced piston fighters from the Second World War such as the P-38 Lightning, Messerschmitt Bf 109, Supermarine Spitfire and the A6M Zero Ace Combat Infinity is set in an alternate timeline, in which Earth was ravaged by the "Ulysses Disaster".

To better combat the terrorist threat, the UN hires Arrows Air Defense and Security, a private military company specializing in aerial warfare.

[4] Elements in the game, such as the Ulysses disaster, the Stonehenge superweapon and the rise of the USEA enemy faction (the "United States of EurAsia", a new multinational military federation rather than a fictional continent) are direct references to Ace Combat 4: Shattered Skies, but played on Earth instead of "Strangereal", the fictional planet setting of previous Ace Combat games.

[7] Furthermore, the player character taking the role of a mercenary pilot of a private military company hired by the UN to keep the "post-Ulysses" world stable to regional dispute and terrorist attacks, is similar to the storyline of Ace Combat Zero: The Belkan War.

The Bone Arrows join the UN Forces in a rescue operation to save the "Greymen", a top circle of world leaders who were kidnapped by the Sons of Troia and held somewhere in the Iyuli refugee zone in Russia.

[4] The Sons of Troia make a public statement after the Stonehenge raid through its leader Kacper Cohen, a former Wernher-Noah executive fired by the UN for working on a secret space weapons project.

Having executed the nine Greymen, he declares the creation of the United States of Eurasia (USEA), a federation of multiple nations across the southern Eurasian continent.

[4] Bone Arrow and the Ridgebacks fly to Tokyo to aid the UNF assault but run into tough opposition led by a large airborne fortress and an advanced aircraft - known as the "Butterfly Master" - controlling laser-armed drones.

[4] In May 2020, the UNF scrambles Task Force 118 from their base in San Diego to intercept a large wave of USEA planes that took off from South America, and encounter them over Area B7R in Nevada.

The UNF planes pull out after defeating all enemy aircraft, but the Butterfly Master - believed killed in the Tokyo operation - reappears with a formation of drones.

The game's final cutscene revealed to players that the Butterfly Master was actually a young girl situated in a satellite in a Low Earth Orbit who, after her defeat in Nevada, dedicates herself to hunting "that Ribbon Guy," a reference to Reaper.

Olivier Comte, Senior Vice President of BANDAI NAMCO Games Europe, said: "The Ace Combat franchise has evolved dramatically over the years, but never before have we been able to offer its amazing graphics and tactical action for free.

[20] GameSpot awarded it a score of 6 out of 10, saying: "The soaring bird that has long served as the metaphor for the Ace Combat pilot becomes a vulture fighting over highway carrion, looping away incautiously when the odd car passes a little too close, before returning again for a final few scraps of flesh".