Mods

@ChaoticGraviton Thanks!

I believe they're located at ~/Library/ApplicationSupport/com.jundroo.SimpleRockets2/Mods (I'm not a mac user myself, so I hope you understand this). In that folder, you place the .sr2modfile in that location. Then you can open the game and enable the mod on the main menu (In sandbox, you'll see this button at the top and sligthly to the right. In career, you'll need to select menu and then the Modifications button).