In Metro Redux, a significant amount of changes and tweeks have taken place. Most notably in Metro 2033. When it was initially released, you could easily tell that they did not have to budget at that time to really pull off what they intended. So Redux allowed to them to do that, not only was the gameplay enhaced, but new sections and all new encounters are there too! There are moments in the game where I expect the original things to happen, then BOOM! Curve ball right into something way different. Like Spider Monsters when they were never in the game, enemies where they never were, etc. Its blatantly obvious that is in no way, shape, or form a simply cash in on the next gen systems. Its glorious that it has been given this kind of attention, and should set the prime example of how to do a remaster!