Well, the game has tactics, a base where you can't do much except buying stuff, enemies that kill you in 2 hits (medium difficulty) and you don't even get healed when you get back to the base (the Ark). Enemies almost never miss. And you need medpacks in order to heal yourself, but they are expensive and the few scraps you're getting (the game's currency) are not enough to even buy 3 before the second mission that puts you against a Shaman that calls for 3 other units, a hunter with very high mobility, perfect aiming and tons of health plus another enemy. Doesn't seem to have research or anything, so just buy xcom. Even the first one is better. A lot of money for nice graphics and poor gameplay.