About Secret of Zero Lab

Solve integer puzzles to heat and cool the lab with plus and minus buttons, and save it before the reactor freezes or overheats.

On a computer: Click the plus and minus buttons and the answer cards; the + and - keys also wor
On a phone: Tap the big plus and minus buttons and the answer cards

Majid described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.