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Cut pipes and close valves until no route from source to sink survives. 80 industrial puzzles, each with one unique, provably optimal shutoff and exactly enough torch fuel to match it. No partial credit. One-time purchase. No in-app purchases, no ads, no internet required.
Mac · Oct 27, 2026
Worldwide · Exact date · Full release · IGDB
PC (Microsoft Windows) · Oct 27, 2026
Worldwide · Exact date · Full release · IGDB
Catalog sources
9 achievements available.
Complete an optimal shutoff worth 16 or more.
LockedSteam
Waste nothing on a network where the obvious route costs twice the optimum.
LockedSteam
Complete the first shutoff.
LockedSteam
Land your first action inside the optimal shutoff.
LockedSteam
Complete every network.
LockedSteam
Complete an optimal shutoff that uses both a pipe and a valve.
LockedSteam
Complete a level in exactly as many actions as the shutoff requires.
LockedSteam
Complete an optimal shutoff that closes a valve.
LockedSteam
Watch a flow decomposition play out in full.
LockedSteam
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