The gameplay in XCOM 2 is similar to its predecessor, with a strong focus on strategy and tactical combat. The player must fly the Avenger, a mobile base, around the planet to bolster the resistance and upgrade their ship. In the tactical layer, a squad of soldiers must navigate multiple environments, dispatching aliens and completing objectives.
The game features support for one-on-one online multiplayer games, allowing players to compete against each other in battles. The maps have portions that are randomly generated, with objects and buildings added to create a unique experience each time. Random generation is also applied to side missions, enemy placement, and reinforcements, adding an extra layer of challenge to the game.