I've put together a .pdf that contains the controls for the game. The .pdf can be saved and used on your favorite tablet, or you can print it out to have a physical piece of paper to reference as you get used to the controls. I originally made it for my own usage, but thought it could be helpful to new players (like myself) so I shared it in the Game Controls thread.
I've chosen to start a topic about it to ensure that I have all the controls listed correctly, as I used what was mentioned in the original Game Controls thread, and realized that there were a couple of controls that I was using in-game that were not listed (like "C" to clear the item from your cursor, or "H" to hide the interface). In any case, I have no idea if there are any more undocumented controls, so if anyone knows of any controls that are not listed in the original Game Controls thread, please let me know in this thread, so I can add them to the key reference.
Dropbox link to the printable key reference: https://dl.dropboxusercontent.com/u/59091547/KV_KeyRef.pdf
Please note that this is NOT an official key reference, and I am in no way affiliated with the developer. I'm just a player that put this together for myself and thought it could be useful to some other folks. Please do not use this thread to suggest control changes or anything of the like, as I'm not affiliated with the dev, and can do nothing about any kind of control layouts or configuration changes any more than any other player can.