The Saddest Game You Have Ever Played

Write down the title of the saddest game you have ever played, and why.

Alternate Phineas
Pokemon Mystery Dungeon 2. That game is evil. Near the end of the game you have to go on a suicide mission to save time. You, being from the future, fade away from existence. After you beat the last boss, you and your partner character start walking back home, and the fading starts. You're limited to a small farewell. Your partner starts loosing it and cries. It gets worse since this plays. Blah blah blah. You do, with the power of Dialga, get brought back to existence. However, in the after game this is apparently said to mess up the natural balance, since you're from another timeline. People, powerful people are out to get you. Heck, the player character probably almost commited suicide.