9 hours ago, meganoth said:
The desert may still have actual use as a source for oil shale.
Not really. As you must loot and quest a lot, because you will otherwise don´t get any books and water, you have more than enough money to buy it from the traders. And also wrenching cars. With the minibike we don´t even need to go in the desert in MP Coop if we don´t want to. 3 traders within 1.5km, about 8k gas every 3 days to buy from each. More than enough. And as you don´t need to leave the forest there is no reason for other vehicles.