Titanfall is a 2014 multiplayer first-person shooter video game developed by Respawn Entertainment and published by Electronic Arts. It was released for Microsoft Windows PCs and the Xbox One console on March 11, 2014; a Xbox 360 version was released April 8, 2014.

In Titanfall, player pilots and their mech-style Titans fight in six-on-six matches set in war-torn outer space colonies. The game is optimized for fast-paced, continual action, aided by wall-running abilities and populations of computer-controlled soldiers. Up to 50 characters can be active in a single game, and non-player activity is offloaded to Microsoft's cloud computing services to optimize local graphical performance. The game's development team began with a blank slate in 2011, and their Titan concept grew from a human-sized suit into a battle tank exoskeleton. The team sought to bring "scale, verticality, and story" to its multiplayer genre through elements traditionally reserved for single-player campaigns. The 65-person project took inspiration from Blade Runner, Star Wars, Abrams Battle Tank, and Masamune Shirow of Ghost in the Shell.

Up to twelve human players choose their pilot types and are dropped on the map, beginning the game. Titans can be deployed periodically, based on an onscreen timer. Killing other players reduces the timer. When summoned, players are told to "prepare for Titanfall", whereupon a Titan drops from the sky, surrounded by a protective forcefield. Unlike player-characters in games like Call of Duty and Battlefield, pilots are agile and accumulate momentum while running (similar to Tribes). Players run on walls, double jump (with a jet pack), vault over obstacles, glide across ziplines, and chain together combos. Pilot and Titan controls are identical except where the pilot's double jump becomes the Titan's dash, as Titans cannot jump. The Titans, somewhere between battle tanks and the robot mecha of Gundam and Macross, are not slow, but their movement is slower than the nimble pilots. Battles also include artificial intelligence soldiers (human grunts and robotic spectres) that are designed as human player competition, support, and scenery. Games end with a race to the losing team's evacuation dropship.