
While many enjoyed the hardcore nature of Metro 2033, many more felt that the gameplay was a mountain not worth climbing. Related: Metro 2033 World Explained: What The Metro Books Are About Shoot up a roaming creature too much and series protagonist Artyom will have no resources for the levels ahead. In fact, in one of its most famous mechanics, bullets were not only ammo for weaponry but the actual currency of the world. Mutant creatures could attack at any moment, oxygen ticked down constantly, and bullets were always in short supply. Unlike popular contemporaries like Fallout 3, Metro inflicted the punishing conditions of a ravaged outside world on any player brave enough to venture away from safety. The original Metro 2033 released amidst a boom of post-apocalyptic media, and the game arguably took the trend to its logical conclusion. Here's why it's well worth a few button presses. Best of all, any PC players interested in trying it out for the first time still have time to claim it for free on the Epic Games Store. Each entry is a critically-acclaimed shooter that mixes in horror and survival elements for a completely unique AAA experience.

That's exactly what happened in Metro: Last Light, the second of three Metrogames developed by 4A Games over the course of the last decade. From Street Fighter 2 all the way to Borderlands 2, developers can truly refine their innovations and really capture what the gaming public wants in a first sequel. More often than not, the second game in a series is the one to really hit the nail on the head.
