1. Download the mods put them in a place where you want them to go 2. Copy the mod you downloaded to C:\Users\Username\AppData\Roaming\Factorio\mods (change Username to the name on your PC) 3. Go to factorio in the steam library and right click on it 4. Go to the tab that says beta, click on it, select Latest Fatorio Build 0.17.50 5. Download the new factorio beta 6. Once the download is done start up factorio, let it load everything needed 7. Then once that is done loading, go to the mods tab and if the mods aren't already enabled, enable them all 8. Start up the world and have fun!