I've been working on a game called ATOM. The goal of the game is to discover all of the elements of the periodic table in as few moves as possible starting with just hydrogen. You can discover elements through finding them in various places, or you can choose to transmutate a pre-existing atom.
It is highly recommended to play this game in a separate tab, as it will prevent stuff like text wrapping where wrapping would otherwise be unwanted.
The game runs on exactly 500 lines of code (as of the time I'm writing this) which I'm pretty proud of :)
Any feedback would be appreciated!