Build and Kill Zombies Cash and Upgrade Guide

The official game description connects zombie waves to earning cash and upgrading your build. A September 26 Eurogamer report also describes rolling for parts and buying skill tree upgrades. Specific prices, probabilities, and skill effects should be checked in the live game.

Pick an upgrade target after each run

Before spending, write down one observation:

Observation	Upgrade question
Vehicle could not finish a wave	Would a weapon or better placement address the gap?
A key part broke early	Would protection or a different position extend the run?
Vehicle became difficult to drive	Would simplifying or changing the mobility setup help?
The build is stable but slow	Is an offensive upgrade now worth testing?

Compare the next run with the previous one. A longer run or more consistent performance is useful evidence; a single lucky wave is not enough to establish a permanent ranking.

Cash, parts, and tokens

Cash is earned through play. Some reported codes offer cash, parts, or event tokens, but code rewards and redemption conditions can change. Check the reward shown by Roblox before planning a purchase around it.

The car planner gives each part a purpose and a note field. Keep your own purchase priorities there, then revisit them after testing. The car build guide helps connect those notes to mobility, coverage, and protection. The planner intentionally has no built-in cost or damage values because those would require current, verified game data.