What the listing states
The official description says you earn cash and upgrade your security gear. It also says the prison becomes more dangerous as you process more prisoners, leading to major escape attempts and a final boss.
Use a three-question purchase check
- What is ending my run? Identify the practical problem you are experiencing.
- What does the current screen show? Read any upgrade details displayed in your version.
- Will it help now? Prefer a documented current benefit over an unverified future build.
Early route
First, stabilize the intake loop. Make decisions consistently and learn the station. Once the routine is reliable, check the current upgrade screen and choose the displayed benefit that best addresses your constraint.
Mid-run route
Shift attention from pure throughput toward resilience. If rising danger is now the main problem, compare whatever effects the current upgrade screen displays. Public sources do not name a specific best item.
Late objective
The developer’s stated high-level goal is to stop the final prison boss and secure the prison. Exact requirements and reward details are not publicly documented, so verify them in the current game version.
Protect the route
Before spending, review the common upgrade mistakes. They explain why an old tier list or guessed effect can derail an otherwise stable shift.