Never Let You Go, which is a sequel to the famous Tear JerkerNever Say Goodbye. If you haven't seen the first video, it details the story of Steve and his lover, who are attacked by zombies. Steve fails to save his girl from being captured by the zombies. When he sees her again later, he is horrified to learn that she has been turned into a zombie. It was strongly implied that he was forced to shoot her, and when he returns home, it is also hinted that he is turning into a zombie himself. However, the sequel changes all of that by revealing that he never really shot her and that the character turning into a zombie was merely a bad dream. Steve vows to restore his lover back to normal by brewing a potion that reverses the zombification process. After making it, he searches the entire world looking for her. He fights off the zombies single-handedly and restores her to normal. The couple finally receive their happy ending, after a lot of emotional turmoil.
This video, "Griefing is Bad". Most of the video is downright Tear Jerker (particularly the suicides of the two main characters). But the very last shot, the shot of a group of villagers mourning at the gravestones, reminds the audience that they were somebodies, and they will be missed by someone.
After you kill the Enderdragon, you are treated to a conversation between two strange beings, who appear to be the true architects and creators of Minecraft. What they say, and what they say to you, is strangely heartwarming.