Excellent gameplay and decent combat makes this game worth playing...
It is a freeroam, and it lets you kill who you want and shoot who you want and go where you want, and to me, thats alot of fun. Although its a little slow in the beginning and doesnt have much of a great start, it still has a better "later on" gameplay to it. Meaning playing the game is rewarding. You are able to seek out artifacts and sell them to local traders or stalkers, kill enemies and get good amounts of loot (armor, weapons -which there are alot of-, medkits, artifacts) stuff you need to sell or use, roam around looking for treasure, explore highly integrated ruins with cool looking anomalies, and finish quests which arent the emptiest.
This game definately keeps you on the move, with decent graphics and an ok story. The Combat makes this game so much fun. Don't step into this game expecting it to be an rpg thats the BEST, come more into it hoping its a good/decent FPS, which in this case, you will not be dissappointed.
I give this game a good score, because of how its made and how its decently realistic (bleeding, radiation poisoning, bullet drop, weather system, etc...). Its a good FPS and game and should be played by all First Person Shooter/RPG fans alike.