F.E.A.R. 2: Project Origin vs S.T.A.L.K.E.R.: Clear Sky
F.E.A.R. 2: Project Origin
F.E.A.R. 2: Project Origin puts you into the shoes of Special Forces Sgt. Michael Becket whose routine mission turned into a fight for survival as he and his squad fight tooth and nail against the wrath of Alma Wade. In this game, you'll need to battle through a terrifying post-apocalyptic-like landscape in hopes of finding clues that you can use against Alma. Aside from its amazing bullet time mechanics, the tactical gameplay is as intense and explosive as ever, forcing you to truly make use of your surroundings and decide the best approach to tackling certain obstacles. The AI in this game has been enhanced as well, giving you the extra challenge you crave.Not to mention, if you're interested, you might also want to grab F.E.A.R. 2's major DLC, F.E.A.R. 2: Reborn as well just so you can have a complete story and fully enjoy this sequel.
S.T.A.L.K.E.R.: Clear Sky
S.T.A.L.K.E.R.: Clear Sky is the second installment in the S.T.A.L.K.E.R. series and yet is the prequel to the original game. In this game, a group of stalkers have unwittingly triggered an explosion of anomalies when they ventured into the heart of the exclusion zone - the Chernobyl Nuclear Power Plant itself, turning the entire zone into an unstable mess that continues to quake with anomaly outbursts. Stalker factions have also erupted, further adding to the overall chaos of the region.S.T.A.L.K.E.R.: Clear Sky is essentially similar to the previous game, though it does have some significant improvements. For instance, the game is a lot more stable, which is ironic considering that all the storyline in this game talks about is how unstable the zone is. The weapons and armor in the game work better than in the original since they can, finally, be repaired. Artifacts are harder to find here but is a lot more rewarding and well, generally the overall setting feel a lot more realistic.
This is definitely a nicer game to play than its first game, but it's not really comparable to the third game of course. However, if you love the S.T.A.L.K.E.R., you might still want to consider buying all three games via its Steam bundle.