Unlock!: The Nautilus’ Traps

The Nautilus Traps brings you to the bottom of the sea. When a sea monster attacks your submarine at the outset of the adventure, its up to you to make your way through the depths and back to the surface if you’re going to escape before your oxygen runs out.

Rating: Tricky!
Completion Time: 80 minutes
Date Played: 27th July 2020
Party Size: 2

Oof … This one is TRICKY! After our previous success with The Island of Doctor Goorse we felt unstoppable. Well, we were wrong. The Nautilus’ Traps absolutely stopped us! But was it fun? Yes! I love and admire the creativity of the whole Unlock! series. What’s not to love in a portable, fast paced and high quality series of games?

The Nautilus’ Trap is a classic “escape before the air runs out” game that places you, the player, in a mysterious Nautilus wreck at the bottom of the ocean. As you go along, there’s opportunities for you to pick up more air as you progress through the game. Personally, I love this theme! Along with sci-fi and 80s escape games, anything involving giant octopuses or secret steampunk submarines is very exciting in my book.

In terms of puzzles, this game in particular uses a lot of 4 digit codes compared to other games in the series. As one of the mechanics to progress, players have the option to combine objects, activate machines, or input codes. I counted around 6 codes, compared to 1 set of objects to combine. To find these codes you have to line things up, search for hidden numbers, and play spooky underwater pianos. It’s straightforward and you know what you’re looking for, even if the puzzles are on the harder side.

Speaking of difficulty, we used a whopping 16 hints! Oops! Of those hints, 2 of the puzzles we still couldn’t figure out, so had to pause to watch the Playing Board Games Youtube walkthrough. I’ve decided to helpfully link that tutorial here as well, just in case you also find yourself stuck. In short, I can safely say that if I ever found myself trapped at the bottom of the ocean running out of air … Well, I’d be stuck down there forever. *shudders*

Super fun theme, super tricky puzzles – a great experience for seasoned experts! Good luck 😉

The Nautilus’ Trap can be purchased for approximately £15 on Amazon, or local retailers.


  • Mairi is the editor-in-chief of The Escape Roomer and covers escape room news and reviews across the UK's South.

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