The founders saw the end coming. On Pivot Day they sealed themselves into their bunkers, and the region's water went in with them. Three and a half years later, the people left outside live at a camp by Last Chance Gas with one radio and not much to drink.
You're the one the camp sends. Pick one of six people (an infiltrator, an engineer, a brute, a fixer, a scout, or a defector who once had a seat in a bunker) and take the bunkers one at a time: a startup founder's padlocked garage, a rocket hangar, a lighthouse full of cameras, a tower whose turrets apologise before they fire, a glass dome that patches every trick you use against it, a fulfilment centre built like a cathedral, a star fort in a moat of coolant, and last, the bunker of the woman who built all the others.
Every door has more than one way through. Pick the lock, splice the terminal, short the keypad, talk your way past the intercom, or blow it open and deal with Kade Recovery when they arrive. Between jobs there's a desert with a full day and night, dust storms, wolf packs, a town and a dozen places to scavenge. All of the dialogue is voiced. It runs on Linux and Windows, in the browser and on phones, and it's free.