: Offers a DRM-free version of the Complete Pack, which is often recommended by users over the Steam version due to simpler license terms.
: Often provides discounted Steam keys, with recent prices as low as $9.99 $5.39 (46% off). Humble Store : Sells the Steam version for $9.99 . Minimum System Requirements for PC xcom-enemy-within-pc-game-full-version-free-download
: Available for $9.99 as a standalone expansion. Note that it requires the base game, XCOM: Enemy Unknown, to play. : Offers a DRM-free version of the Complete
: NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or better Storage : 20 GB available space XCOM: Enemy Within on Steam Minimum System Requirements for PC : Available for $9
XCOM: Enemy Within is not legally available as a free download for PC; it is a paid expansion for the base game, . However, you can currently get the XCOM: Enemy Unknown Complete Pack (which includes the Enemy Within expansion) for free if you have an active Amazon Prime subscription via Prime Gaming until July 1, 2026. Official Purchase Options
If you do not have Prime, you can purchase the game from these authorized retailers: