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Sign inCut 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.
| 11 languages | Interface | Voice | Subtitles |
|---|---|---|---|
| French (France) | |||
| American English | |||
| Chinese (China) | |||
| Chinese (Taiwan) | |||
| German (Germany) | |||
| Italian (Italy) | |||
| Japanese (Japan) | |||
| Korean (South Korea) |