I want to Mod Fantasy Blacksmith but I have no idea what I'm doing. Thread

I want to take this game (that I feel has enormous potential) and add things to it/fix things. I don't know how to access the code. I don't even know what engine it runs on but want to make this happen and any help would be appreciated!

I doubt you can. First, Steam games have protection so its difficult to mess with the files. Second, reading the reviews it seems the game's bad and needs rewriting rather than modding I don't think the devs will share the code with you lol!
Try out Jacksmith, it has better gameplay and it's free:
Armorgames.com