Find the battery
The depot holds the first required component.

Hallvik’s progression is carried by infrastructure, equipment and places you can reach. The design does not rely on a conventional level tree.
Critical parts have guaranteed sources. Optional loot and recipes should never remove the only way forward.
The depot holds the first required component.
Power the gate and reach the next part of the district.
Bring power back. An optional pump repair creates a shortcut.
Confront the Warden at Metro Forecourt. Required loot remains recoverable even with a full bag in the design.
Open the route toward the Harbor and Industrial Works.
Try the city unlock rule. This is a website demonstration, not a game save.
The things you carry change your options. The repairs you complete change the world.
Weapons, protection and backpacks shape your preparation. Space and ammunition are finite.
Repair services and recipes belong to physical places and restored infrastructure.
Opened gates and completed repairs are intended to remain open. Important parts should survive a return visit, death and loading.
Hallvik is in development. World and system entries describe the current design unless an implementation result is explicitly stated.