What I've been looking forward 2012 as "XCOM - Enemy Unknown" appeared. Finally the Srtrategie classics from the 90s was a successful, worthy remake. The subsequently published "Enemy Within" is the extended version of "Enemy Unknown". It includes everything the original game includes, but there are tons of new elements. This starts with the added customization options of the soldiers, then there is a new building for the base, dozens of new missions, in addition to new hostile aliens fighting an underground terrorist organization, new equipment and much, much more. I especially like the ability to own soldiers à la Deus Ex to provide them with genetic implants, or convert them into powerful biomechanical MEC fighters who stomp through powerful weapons and armor over the massive battlefield. The basic element of XCOM will of course exist: It is necessary to repel the alien invaders in turn-based missions, outside of which is the base erweitertert, laboratory research is carried out, and new equipment is being built in the art department. Since I'm going to take this opportunity not so much detail, because this is about the extensions. The ensure that "Enemy Within" locker has double the amount of "Enemy Unknown". Who still has none of the two games should definitely opt for the extended version, which is now available for small money. Those who already have "Enemy Unknown" and thus took pleasure, should also strike because "Enemy Within" a more than slightly modified version of the "original" is.