Trivia: Longleaf Valley is a mobile merging game. A few months ago, the game partnered with Sea Shepherd, an organization dedicated to protecting marine life. The way it worked was that if you completed a few quests in the game, a donation went to the cause.
The whole event lasted from May 26 to June 22nd and is since long gone, but the game's environmental efforts are still going to this day. When you play the game, a tree gets planted in real life.
So if you like merging games and want to help fight climate change, you can download the game and check it out!