[b]Underrated:[/b] Murder Miners
Even I don't know what the hell this game is, but it's definitely one of the best games I've ever played with friends.

[b]Underrated:[/b] Assassin Creed: Chronicles
The rest of the series is basically a carbon copy of itself, but Chronicles is unique in the sense that it acts more like a platformer and strategy game than anything else. If it didn't have the Assassin Creed title attached to it, I feel like it would actually be a fairly successful game especially with the gorgeous art style that it has. 

[b]Underrated:[/b] Always Sometimes Monsters
I forget how much this game costs, but the fact that it DOES cost money and has pixel sprites might be an automatic turnoff for most people. The game is also fairly short, but it does have high replayability value. I've beaten this game several times now and it's honestly such an interesting and twisted tale that acts as a realistic glimpse into human desperation. The characters may appear shallow and one-dimensional, but the more I played this game, the more I learned about my character, the characters around them, and a little bit about humanity in general. 

[b]Overrated:[/b] Minecraft (?)
I genuinely love Minecraft and had spent my early teenage years playing it with family friends, but it has had so many updates and renditions that it's slowly becoming unrecognizable. I loved the game when you could simply build underground houses and awesome forts with a worry of creepers and skeletons instead of having to care about witches, potions, and whatever else. I know that much of these expansions are optional, but the game feels somewhat empty if I ignore them. I wish Minecraft would revert to its more original form meaning that Microsoft would not have their grubby mitts on it anymore.