MarsRover Mine, Build, Breathe

You land on Mars with a bad drill, a small battery and one job: make the air breathable. The atmosphere starts at 0.0% oxygen. The run ends - as a win - the moment it reaches 21%, which is Earth's. That is the only ending there is. Everything else you do on this planet is in service of that one number. MINE THE SURFACE Tap to drive, tap a deposit to cut it. There is no auto-collect and nothing is picked up by being driven over, so what comes home is what you chose to take. Seven metals from common iron to exotic iridium, two rare-earth patches that have to be tapped on their own outline, and radioactive shards that will not ride in your boxes at all. Price and scarcity run opposite ways, and the rare species are weighted towards the outer map - so earning well means driving further than is comfortable on the battery you own. BUILD THE ATMOSPHERE Four oxygen plants, each dragged out of a…