Build and Kill Zombies Wiki

Build and Kill Zombies Upgrade Planner

Choose what you want next and rate where your build stands. The planner returns a conservative next step based on prices and mechanics that have actually been observed — no invented formulas.

Plan your next purchase

Recommended next step

Your build has its basics. Take the drive and bank a payout — the first run pays for the next round of rolls.

FAQ

Calculator FAQ

Does this planner use exact in-game formulas?

No — it uses observed prices (labels from gameplay footage) and conservative priorities instead of invented maths, so the advice stays safe across updates. Verified prices are listed with each recommendation.

Why does it not tell me exact roll odds for weapons?

Because most category ladders have not been read completely from the game yet. Only the Engines ladder (1 in 3 up to 1 in 12,500) is fully documented so far; the planner will not quote numbers it cannot source.

Is the 2x Cash pass worth it?

Its official description doubles both cash taps (kills and distance), so it scales with how much you already play. The planner ranks free luck nodes above it for most early accounts.