Tools

Four bills. Four calculators.

Almost everything that stops your progress in this game is one of four bills — two for the base, one for your heroes, one for the mess after a bad Saturday. Each has a tool that answers it directly.

Before WT30

Watchtower Cost

Wood, stone, electricity and iron for any stretch of the climb, every prerequisite building listed, and Megan’s construction discount applied. The full run is roughly 8,300M at full price — and 90% of it sits in the last eight levels.

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After WT30

Precision Parts

Past WT30 resources stop mattering and Precision Parts become the only blocker — unfarmable, unbuyable, unskippable. Reaching Industrial 8 takes 24,350 at the bare minimum, and more if you want the camp levels that actually help.

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Your heroes

Skill Books

One skill from level 1 to 30 costs 11,100 books, and 45% of that sits in the last five levels — the final step alone costs more than levels 1 to 15 put together. Find out how far the books you are holding actually get you.

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After a bad Saturday

Healing Cost

What it really takes to get troops out of the Hospital and the Emergency Center — in speed-ups, resources and, if you insist, real money. The ER is the punitive lane and the numbers show why.

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Numbers are only half the answer.

A calculator tells you what something costs. It won’t tell you whether it’s worth it — which pushes pay for themselves, which walls stop everyone, and what the next two years look like.

The three walls everyone hits →  ·  The Crystal Ball — Seasons 1 to 6 →