XCOM: Enemy Within will be a full content addition to XCOM: Enemy Unknown, featuring new abilities, upgrades and weapons, on top of extra maps and multiplayer features. Look forward to the expansion this fall.
PC System Analysis For XCOM: Enemy Within Requirements
XCOM: Enemy Within needs a Radeon HD 2600 Pro graphics card to play on low settings, with a Core 2 Duo E4400 2.0GHz or Athlon 64 X2 Dual Core 4400+ processor to reach the minimum specs, achieving 30FPS on 1080p monitor res. Your PC needs 2 GB system memory as well for min.