Nautilus Nightmares takes place in the same universe as Nautilus, so it can technically be considered as a spin-off of Nautilus. The idea for this set surged some months ago, when Novelkeys shared with me their Nautilus deskmat’s design which portraits a giant cephalopod moments before its confrontation with Captain Nemo’s ship. It’s such a great design that some time after sharing it with me, I just asked if they could do a green version of it, and that’s when this new keycap project started.

Given how I’ve set up the kits, ideally I’d like to have the set dropping on Massdrop so if you are interested, don’t forget to vote for your favorite kits!


Discussion channels

Proposed kits

Nautilus Nightmares’ kits are slightly different than the rest of GMK sets and they have been specifically designed for medium and big group buys.


The Core kit is the starting point for everyone, as it provides great coverage for most people. You might have noticed that compared to other standard GMK base kits, Nautilus Nightmares have a smaller one, composed by only 128 keycaps, as ISO and numpad support have been moved to extension kits. The result is a Core that costs less, making it more accesible for the vast majority of people which then means that it would be more prone to reach new price tiers faster.

The kit includes dark gray Escape and Enter keys, dark green pipe and tilde, 1.75, 2.00, and 2.25 extra shifts; three extra spacebars in 6.00 (both center stem and off-center) and 7.00U sizes, 65% and 75% dedicated keys, stepped caps lock and control, scooped and barred homing keys, as well as HHKB R4 coverage with 1.50 Code keys.

A second  R2 1.50U Tab key has also been included on this kit. This eccentric addition allows you to potentially reuse some of your extra modifiers on another keyboard. For instance, you’d be able to cover a standard ANSI TKL keyboard and reuse the extra modifiers on an HHKB layout.

With Nautilus Nightmares’ Core you’ll be able to cover keyboards such as Nemo, Tokyo60, M60-A, TX60, Pok3r, Tokyo66, Zephyr, Kuyo, Canoe, TX65, Massdrop ALT, Clueboard, FC660, Singa, Octagon, Verne, TX-84, Massdrop CTRL, or the Masterkeys S.

Extension kits


The first of Nautilus Nightmares’ extension kits provides UK ISO layout coverage and it comes with two ISO Enter keys (one of them in the accent color), and an extra R1 1.00U ` ¬  for symmetry purposes.


The Numpad kit consists of 30 keys and aside standalone numpads, it extends Core’s layout coverage to 1800 layouts (Andromeda, TX-CP, Duck Jetfire), 96-key (Duck Lightsaver, Red Scarf III), and fullsized keyboards (Q100, Southpaw, Masterkeys L).

The kit includes an extra R1 for standalone numpads, accent Enter, Escape, and Num Lock keys; and scooped and barred homing keycaps.


Composed by just 23 keycaps, the 40s kit is enough to extend Core’s coverage for forty percent keyboards such as Planck, JD40, Minorca, Sebright, Percebe or Preonic and split spacebar keyboards such as TGR Alice or VE.A.

Note: depending on how much interest is on this set, accent keys might be added. Also note that by the time this set reaches the Group Buy stage, 2.25U and 2.75U R4C spacebars might be available


A set of extra modifiers for your bottom row and enter key with custom symbols. It features the iconic Nautilus submarine, sea vortex novelties, and a pair of tridents.

Note: depending on how much interest is on this set, more novelties might be added.


This kit consists of a set of dark gray spacebars, ranging from 1.00 to 7.00 unit keycaps. Ideal for those who want an extra splash of color on their keyboard.

Note: by the time this set reaches the Group Buy stage R4C 2.25 and 2.75 unit keycaps might be available.

Keyboard Gallery













Technical specs


  • High quality 1.5mm thick doubleshot keycaps, with legends that will never fade.
  • Original Cherry Corp. profile, ideal for long typing sessions.
  • Compatible with MX style switches.
  • Made in Germany by GMK Electronic Design GmbH.


Nautilus Nightmares isn’t an exception when it comes to extras and here is a teaser of what we’ve got prepared for you.

NovelKeys Nautilus Nightmares Deskpad

These deskpads are a must have. Designed by Novelkeys, they will be the perfect companion for your Nautilus Nightmares set.


  • 900×400×4mm (35.4×17.7×0.16 inches)
  • Rubber bottom
  • Cloth top
  • Stitched edges

Verne: Nautilus Nightmares Edition

What better to have the perfect setup by having matching keycaps, deskmat, and even your keyboard. What about a limited edition of a Nautilus Nightmares themed Verne made to match the set?