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About game
An old laboratory holds messages written in the language of scent. Arrange seals, test your ideas and uncover the secret code one clue at a time. Every probe brings you closer to the answer.
Simple mode gives feedback for each seal; Classic mode offers a tougher deduction challenge. Explore 100 puzzles across 10 chapters, discover specimens, formulas, research and achievements, and restore the laboratory.
Play at your own pace on desktop or mobile. A guided tutorial, deduction notebook, text size controls, music settings and reduced motion help you settle in. Switch between English and Russian in the game.
How to play
Select scent seals to fill the empty slots, then press “Check code”. Compare the feedback with your previous attempts. In Simple mode, ✓ marks the right seal in the right place, ↔ means the seal belongs elsewhere, and — means it is absent or an extra repeat. Classic mode gives the total number of matches.
Find the code before you run out of probes. “Undo” removes the last seal; “Clear” resets the current probe. On desktop, use the number keys to select seals, Enter to check a code and Esc to pause. On mobile, tap the controls. Use “Language” in the menu to change the language.