DayZ vs S.T.A.L.K.E.R.: Clear Sky
DayZ
DayZ is a survival-themed, first person MMO game set in a post-apocalyptic world that's utterly devastated by a virulent disease. The game provides players with a beautiful yet dangerous map of Chernarus, a post soviet state to explore and to scavenge for whatever resources - as sparse as they may be - that you can find. Craft a wide variety of useful items or use the materials you have to improve or customize the equipment and weapons you already have... literally every item in this game can be upgraded. You can customize the look of your survivor with a wide variety of clothing too.Previously a mod for the game, Arma III, DayZ had come a long way to now being a standalone game. Unfortunately, the game is famous for its player-breaking bugs and glitches, and well, this is pretty understandable considering that the game's still in its early access phase. Due to this, even the most hardcore proponents of this game, the ones who has put in hundreds of hours into this game, will advise you to not get this game unless you truly want to help out with the game's development. If not, the game is more frustrating than it is fun, as exciting as the concept of the game may be, and we would not recommend you to get this game in its current state.
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.