There is no function in Ravage for base-building (as of 0.1.35), but there are plans to add it. Here you can turn radiation on and off, make the water radioactive and make rain radioactive. Yes, in the editor place down the 'Survival System' module. You can edit the game files to remove zombies (click here to be taken to the article about editing), but there's no switch or option to turn them off apart from that. Playing above 'Regular' difficulty limits the player to one save per mission.
Use the save function available in the radio menu. Save game is grayed out after saving once? But that's a very long thread and it's difficult to find what you're looking for. Common questions and answers about Ravage Ī lot of people ask a lot of questions about Ravage and many of them have already been answered in the original Bohemia forum post.