Player tools for Build and Kill Zombies: estimate your cash per run, plan the next upgrade, and check the references that keep the plans honest.
Every tool on this site starts from the same idea: Build and Kill Zombies pays cash for kills and wave progress, so the numbers from a single finished run describe your build better than any universal table. The formula behind the planner is waves cleared × kills per wave × cash per kill — with the default inputs (10 waves, 30 kills, 10 Cash per kill) that projects 3,000 Cash per run, or 15,000 Cash in a five-run session. Codes shortcut the grind: the tracker-listed CashDrop code was worth 500 Cash and COMMUNITY paid 1,000 Cash plus a Small Engine and Small Tank, so a fresh account can claim roughly a run-and-a-half of income before its first wave. Start with the cash calculator, then let the references below aim the spending.
Each card leads to a page that either computes a plan or documents the facts the plan depends on.
Enter your waves, kills, and cash-per-kill estimate to see earnings and your next purchase priority.
RankingsRole-first weapons and defenses rankings to aim your cash at the strongest role.
ReferenceWhat is documented about the cash economy, with worked goal math, before you trust any estimate.
FriendsThe 5-player server explained: role checklists and worked group plans for running waves together.
Build orderThe ordered purchase path by wave milestone, from first rapid weapon to record-push loadout.
Free cashCollected and reported codes with rewards and checked dates — free cash before you grind for it.
This quick helper turns your progress stage and current goal into a safe next move; the cash calculator does the full version with your run numbers.
Claim listed codes first, then spend rewards only after you know which upgrade path stays useful.
Use exact game rates when they are available. Until then, treat this as a conservative planning helper.
The arithmetic is simple on purpose — the skill is measuring honest inputs.
The cash calculator on the cash-calculator page: enter one finished run (waves, kills per wave, your cash-per-kill estimate) and it projects your earnings and suggests the next purchase. Every other tool here sharpens a decision the planner surfaces.
Estimated earnings = waves cleared × average kills per wave × your cash per kill. It is deliberately simple arithmetic on your own numbers: the game ships no official cash-rate table, so the only honest baseline is what your car actually earned last run.
One you measured yourself: play one run, note the cash you earned, and divide by your total kills. If 8 waves with roughly 40 kills per wave paid 3,000 Cash, your estimate is about 9 or 10 Cash per kill — and it climbs as your weapons improve.
No. Every calculator runs client-side in your browser; nothing is uploaded, and there is nothing to connect. You type your own numbers and read the results instantly.
The math does not change, but your inputs do — a rebalance that changes weapon prices or kill payouts changes what you should enter. Re-measure one run after every notable update; the updates page tracks verified timestamps so you know when that is.
