This universe is a strange, war-torn place, populated by an array of sharp and menacing creatures.

The mechanoids are organic machines with heavy exoskeletons made of sharp, machined metal and molded plastics. They have some organics left for life support and other biological functions, but they are ultimately war machines, with the teeth, claws, and spikes to prove it.

The humanoids are more like humans, but centuries of exposure to alien species and environmental radiation have left them with sharpened teeth and elongated limbs. Many humanoids are attached to some kind of cybernetic support through a complex system of hoses and plugs, while others look almost human.

Towering factory cities have been constructed to support the manufacture of the mechanoids and the machines they need to survive. The towers range from gleaming metal and glass habitats to hellish factories with streams of molten metal. Under the cities, rivers of toxic sewage flow into deep wells in the ground.

Long distance travel is accelerated by cyber portals, electromechanical rings large enough for even the biggest mechanoids to pass through. The portals consume tremendous amounts of electricity and malfunctions can destroy the landscape around them, leaving wasteland zones where the stones are broken and melted. The air is charged with electricity and sudden weather can bring on terrifying lightning storms.

Very much inspired by the art of HR Giger, but it was only trained on images that I generated.

The results of this LoRA are usually rated R or higher at full strength. It can be PG-13 at 0.5 strength or lower, but your results may vary. Not intended for children, to say the least.

I am working on smaller versions and will post them once I am able to test the quality.

Keywords

This LoRA recognizes three kinds of aliens:

female humanoid alien, ...
female mechanoid alien, ...
male mechanoid alien, ...

The color of the alien and their armor can be controlled reliably. Poses are somewhat subjective with such unusual creatures.

It also recognizes the following locations:

cyber city
cyber factory
cyber portal
cyber sewer
wasteland

You can add some miscellaneous additions to the scene:

the phrase lightning storm will add clouds and lightning to the sky in most locations
you can also use cyber portal in [other location] to add one or more glowing, circular portals
adding floating war machines will usually add some flying mechanoid ships

Aliens can have human-like genitals, and their physical attributes such as breasts and penis can be controlled to some extent. Breasts often have mechanical nipples, you may want another NSFW LoRA to change that. Penises are not very good yet and there may be a V2 to improve them. It does support cum and ejaculate, which may come from the genitals or mouth.

Strength

1.0 usually works well and applies the full effect
0.85 can reduce the effect and provide more variety for the aliens
0.75 works well for more human aliens or a more realistic style
< 0.5 for mixing with other strong styles
< 0.5 for relatively SFW images

Recommended with hires, which enhances the style with each iteration.

Mixing with other LoRAs

If you want to make the aliens more humanoid, you can mix this LoRA with my Reclining Nude, After Sex LoRA. I recommend using strength > 0.5 for Fractal Aliens and < 0.5 for Reclining Nude, After Sex LoRA, otherwise the alien style may be lost, but you can experiment with the balance.

If you want to make the aliens even stranger and more terrifying, you can mix this LoRA with my Monster In Me LoRA. I recommend using strength around 0.5 - 0.75 for each LoRA. They do not work well together at 1.0 strength, it should be less than that.

Mixing this LoRA with other LoRAs that have a strong style may cause a hazy or noisy effect on images. That is partially derived from this style and partially caused by conflicting styles. Using a lower strength on one or both LoRAs will usually resolve the problem.

Issues

penis looks like blob, slug, etc.: this will need some more training, I think
hazy effect when used with other strong style LoRAs: I think this is inevitable and changing the strength helps, but the good effect is also reduced

Note

I know that these aliens are not really fractals by themselves, but I needed to give this LoRA a name. The clusters of horns and spikes and some of the unusual skin patterns that appear on the aliens remind me of natural fractals.

Horny Kaiju was a close second.

Fractal Aliens - v02-full

Fractal Aliens - v02-full

Sampler

Steps

CFG Scale

Seed

Clip Skip

Size