This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own [πUPD+X2π°] Cameraman Tower Defense session. It will not click the shop.
Drop probability
Spider Crate: chance of a TV Spider
Estimate the chance of opening at least one TV Spider from the reported 0.2% Spider Crate slot. Enter the percent printed on the crate you are about to buy.
Chance of at least one success = 1 β (1 β chance per attempt) raised to the number of attempts.
The 0.2 default is the October 10 Spider Crate ceiling reported for TV Spider. The same card lists the other slots at 90% and 9.8%. Change the percent if the live crate card differs. The result is the chance of at least one TV Spider, not which unit the other slots give.
Material planner
Basic Crate single-pull coin cost
Coin gap for Basic Crate single pulls at the reported 100-coin price. A reported 10-pack costs 900 coins, so use that pack price instead of ten singles when the shop still shows it.
Required total = materials per upgrade Γ number of upgrades. Missing = max(required total β materials already owned, 0).
October shop readings list 100 coins for one Basic Crate pull and 900 coins for ten. This form multiplies the single price, so ten singles cost 1,000 coins, which is 100 more than the reported 10-pack. It does not roll the crate.
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