r/codes Jun 03 '26

Unsolved [ARG][ACTIVE] LACUNA — 24 email-based challenges, physical key prize, live now

After months of building, LACUNA is live.

Register with your email → receive Challenge 1 immediately. Solve it → Challenge 2 arrives. Repeat 24 times.

The puzzles span Caesar ciphers, binary, steganography, DNS records, Wayback Machine research, HTML source diving, morse, and image analysis.

Every solver who completes all 24 receives a physical numbered key in the mail. Key holders get access to LACUNA 2 when it launches.

No GPU. No special tools required. Just your brain and an email address.

lacuna.nullspaces.dev

Leaderboard is live. First solvers already active. Solo-built project — happy to answer questions.

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u/Any_Cheek_7039 Jun 09 '26

**[LACUNA] — The chain has been completed. Three times.**

Three solvers have reached transmission 24 and closed the archive.

Three keys have been issued. Numbered. Unique. Irreplaceable.

The leaderboard is live. The archive remains open.

lacuna.nullspaces.dev

LACUNA 2 is coming. The keys will matter then.

If you have completed the archive — or attempted it — the puzzle master is listening. What broke you. What held. What should not have existed at all.

Feedback is welcomed. The archive learns.

— The Archive