My #50 can be a repetitive game, but the more you play the more rewarding. The entire goal of the game is too have fun playing doing the same thing over and over in order to get better.

No, but there is online multiplayer and is a kind of RPG.

It's probably something else, but your description meets many games, including Project Zomboid.

Grinder Simulator

Well, well, well. There it is again.

Let's begin then, with the first game.

#50: This game as rushed to release, which sadly caused much planned content to be cut or left unfinished, especially near the end-game. Fans however, made many mods, which restored much of this content.

Minecraft? Though not sure about the multiplayer aspect.

Alright, lets do this, lets get this started with the hints and the guessing and the lists and whatnot. I love lists. 

My hints are gonna be very easy tho. 

50.- Leeeeeeeeeeeeroy Jenkins

49.- This game's kind of underwhelming 3rd act almost completely erases the amazing 2nd act it had. 

48.- Nintendo introduced fantastic characters in this game that later decided to never use again. 

Shout out to the raccoon for doing this whole event and to my mom for always believing in me. 

50: World of Warcraft lol

48: Star Fox Adventures?

Ok, here are my hints:
#50: TRAINS (and other stuff, gods, demons, alternate dimensions, ghosts, possesion, magic and what not)
#49: you jump alot, all the time, nonstop (you could guess the franchise maybe)
#48: blocks (guess that's an easy one)

50.- You are obviously correct!

49.- Good guess, but nope, entirely different game.