"To the Moon" is an independent video game develuped and published by Freebird Games. It is available for PC, Mac, and Linux systems. Easiest way to get it on Steam http://store.steampowered.com/app/206440/
The game is short, and easy to play. It is presented in a 16 bit style, and should be easy for anyone to pick up and play. It will only take about 4 hours to play-through completely.
Where the game shines is in its story telling. Telling a beautiful and profoundly sad story. No details or spoilers will be given here, as I don't want to rob anyone of the experience to be had in this game.
While not hard, and rather linear, it is however interesting and enjoyable. It also had me in tears by the end. No game has ever had that effect on me before.