Is there a way to fully make one key function as another?

For context, I play games on my laptop very often, plenty of sandboxes and indie games. My shift key broke a few months ago, and is not functional. I want to see if i could make my capslock act as shift, but most options i come across are related to text, not game keybinds. I don't know enough about computers to change it hardware-wise, so is there a way to do it via software?