Here are some example mods to start you off. In future I might add a full tutorial/guide.

Free belts
Big Buildings
Play the splash screen
No patents

To use a mod, simply unzip it and copy the folder inside into your modding folder:

C:\Users\<username>\Documents\My Games\Big Pharma\Mods

~/.local/share/Big Pharma/Mods

/Library/Application Support/Big Pharma/Mods

If you want to try creating your own mods check out the modding wiki.

You participate in modding AT YOUR OWN RISK, Twice Circled and Positech Games take no responsibility for damage done to your game during any modding attempts. Done correctly, modding is perfectly safe.