I played some Metro 2033 Redux last night, and it looks quite similar to the original. What I like about this game is it has various features throughout the game like notes that are scattered around in different areas, keys and safes, weapon customizing, and it even has a feature that I can wipe blood off my gas mask. Now that is bloody good! 
The graphics in this game look so nice just like in the original. Some weapons have different firing sounds like the automatic shotgun and the AK-47, and Artyom’s voice sounded completely different compared to the original.
I was hoping for Metro Exodus to become available soon so I can add it to my Steam library.