I do own the new xcom enemy unkown and within, and i must say even though they are both really challenging and enjoyable, they don't compare to the original.
X-COM: UFO Defense has an tense feeling, like everything could go wrong at any moment, something thats present in the new one but not as strong. I swear while doing missions, my hands shake, especially if i've grown attached to a character, who could die at any moment.
The game gets difficult fast, any free time you have should be spent preparing for battle.
-tense music makes the missions scary
-whenever you lose a soldier that you took the time to name, it hits you right in the feels
-aliens arn't pushovers, they will mess you up
-addicting, I always have to get my fix, that only the original can provide
-I wish i could choose my starting base layout, i always have to move stuff around
-black characters apear white on the battlefield, get hard to keep track of good people
-can't undo actions on the battlefield, somehow this makes he game more tense
-knee high walls make the worst cover, and you always have to walk around them leaving you open to alien fire
Observations and tips
-civilians are stupid as hell, and they always run into the aliens
-alien in corn field = death
-never stand next to a window, you will die
-never pull the pin on a gernade unless you have enough action points to throw it
-first soldier that steps off of the skyranger always dies, choose wisely
-don't get rid of any weak soldiers, use them as meat sheilds for your better soldiers
-DO NOT GROUP YOUR SOLDIERS TOGETHER, aliens have super gernades that will kill all of them
-always have a few worthless soldier on your team to look for aliens, or take gun fire
I would recommend this game to any person who loves turn based, squad management games.