Eldritch Cthulhu Tattoo Decals - 7 Designs x 4 Colours, 4K + Emission Masks | Any Avatar, Skin, Clothes or Props

Seven eldritch tattoo designs taken from Lovecraft's Cthulhu Mythos - the drowned god, the deep ones, the three-lobed burning eye and the writhing things around them. Drawn in two colours from the start rather than as a black line drawing, so the sigils and inner detail cut through in the second colour. That second colour also ships as a standalone emission mask, so it can glow without editing anything.

The second colour comes in 4 variants: abyss (deep green - Cthulhu / Shoggoth), cosmic (violet - Nyarlathotep), rlyeh (blue-green - Deep Ones / R'lyeh) and hastur (gold - Hastur). Every colour has a black-ink and a white-ink version. The emission mask is shared by all four, so any colour glows with no extra setup.

This is not a skin-only asset. It sits correctly on a white t-shirt, navy denim, a metal plate and a wood panel - the same PNG, nothing changed. For black outfits and deep skin tones the white-ink version is there because a black decal loses most of its contrast on a dark surface (measured: 0.085 to 0.818 on black cloth, a 9.6x gain).

4096 x 4096, which is twice the resolution most tattoo decals on this marketplace ship at. One product with everything in it - there is no upgrade version and nothing else to buy.

Made with generative AI. Artwork in this pack was produced with image-generation AI (Stable Diffusion based models licensed for commercial use), then upscaled to 4096 px, split into two colours, recoloured, cut out and packaged by hand.

The 7 designs

• CT-01 Cthulhu Head - cthulhu_crown
• CT-02 Cthulhu Head (Winged) - cthulhu_wings
• CT-03 Deep One - deepone
• CT-04 Three-Lobed Burning Eye - burningeye_cross
• CT-05 Three-Lobed Burning Eye (Winged) - burningeye_wings
• CT-06 Tentacle Mass - tentacle_mass
• CT-07 Tentacle Sun - tentacle_sun

What's inside

• 77 transparent PNGs, all 4096 x 4096 - 11 per design
• Per design: 4 two-colour versions (abyss / cosmic / rlyeh / hastur) + the same 4 in white ink + plain black + plain white + 1 emission mask
• 7 lilToon materials (.mat) with Main Color 2nd, Decal and Emission already set up
• A Unity .meta beside every PNG, with fixed GUIDs so references do not break
• README.pdf (English) and a Japanese README

Specs

• 4096 x 4096 px transparent PNG (RGBA), 77 PNGs in total
• Second colour in 4 variants. The emission mask is shared by all of them
• Not tied to any avatar. It is a decal you place yourself, so it works on any model, PC or Quest, and on VRoid skin textures
• A white-ink version of every colour for black clothing and deep skin tones
• One product with everything in it. No variations, no upgrade tier
• No unitypackage. The files are plain PNG, so they also work without Unity

How to use

• lilToon: enable Main Color 2nd, load the black PNG, tick Decal, then set position and scale
• On a black outfit or deep skin, load the white PNG instead
• Want a different colour? Swap in the matching abyss / cosmic / rlyeh / hastur file
• Emission: load the emission PNG into the emission mask slot and raise the intensity - only the second colour lights up
• The included .mat already has all of the above set
• Any paint tool: stack the PNG over the body or clothing texture

About the source material

Original artwork based on the writings of H. P. Lovecraft (died 1937, public domain). No artwork from any specific game or TRPG product was used or referenced.

License

Royalty-free. Use them in commercial and non-commercial work — avatars, worlds, games, TRPG sessions, videos, streams, VTuber overlays, print. No credit required. You may edit, crop, recolor and combine the files freely. Adult (R-18) work is fine.

Not allowed: redistributing or reselling the assets themselves, claiming authorship, or using them as training data for AI / machine learning models.