PREY is a game that needs to be slowly sipped and savored. If you are looking for an action shooter, you will be highly disappointed. At it's core it is an exploration game that is incredibly immersive and atmospheric. The game can be as short or as long as you want it to be. I am on my first play through and am 45 hours in. With that said, I have gone through each room, area, etc. with a fine tooth comb. There are many things to find or not. That is your personal choice. I plan on finding everything (including all 250+ crew members). My estimation for completion will definitely be over 100 hours. If you liked BIOSHOCK, you will like PREY. Be forewarned that this game is an ode to the old school gamer who enjoys Dead Space, System Shock and Half Life. It is also extremely challenging and punishing out of the gates. Do not give up and have patience and you will find that the game is extremely rewarding and well put together. The setting (maps & levels) are very unique in the sense that it is an open world with free forming characteristics. The game can be played with many different styles and strategies. How you upgrade your characters and items will largely depend on the style in which you like to play. Make no mistake. This game is about strengths and weaknesses. Your job is to figure out where you stand. Once again, if you are looking for a shooter in the vein of DOOM, WOLFENSTEIN, COD or DESTINY --- THIS IS NOT THE CUP OF TEA THAT YOU ARE LOOKING FOR. However, if you like to approach things intellectually, strategically with action to drive the game --- THEN THIS IS FOR YOU. There are puzzles, an intriguing story and sense of accomplishment from making your way through that space station in an environment that has left you for dead. No hand holding and no linear way to complete the game. Everyone will have an experience that is different or at the least, varied. So far, I am thoroughly enjoying myself on TALOS I and find this to be one of the best games of the year.