LGM Aliens Little Green Men

"It was easy to underestimate them at a glance; they were small, childlike. Their big heads and large eyes might even have been considered cute. It became abundantly clear, however, that they were deadly, dangerous, and a threat to all human life." — Helen Carter, Invasion Survivor.
  "They came with the intent to kill and conquer—a wave of seemingly unstoppable monsters who devolved into degenerate hedonism after the work of war was done. We watched them secure an area, then fall upon the food and drink supplies like reckless locusts, eager to devour and partake, as if desperate to release some pent-up biological need that had long been denied them." — Dr. Adrian Nikelsen, Biologist and Survivor of an LGM Pacification Assault.   "It was sobering—the truth that we are not alone hit the general populace hard, but not as hard as the fact that the first aliens we had encountered as a species wanted our subjugation." — General Marcus Holloway, Acting Commander of Earth’s Unified Defense Forces.

Basic Information

Anatomy

The anatomy of the Little Green Men (LGMs) reflects the tragic consequences of their dying world, genetic stagnation, and overreliance on artificial enhancements. What might have been a robust and adaptable physiology in their evolutionary past has become a compromised and hybridized form, heavily reliant on technology and genetic engineering. Autopsies and observations reveal that their anatomy is a complex puzzle, with the original characteristics of their species obscured by centuries of environmental degradation, cloning, and cybernetic modifications.

Biological Traits

The biological makeup of the Little Green Men, derived from autopsies conducted on recovered bodies and observations during the invasion, reveals a species both alien and hauntingly tragic. Their physiology reflects not only their extraterrestrial origins but also the devastating consequences of their planet’s ecological collapse and their society’s overreliance on cloning.

Genetics and Reproduction

The genetics and reproduction of the Little Green Men (LGMs) provide insight into their evolutionary origins and the tragic consequences of their reliance on cloning and genetic engineering. Autopsies and genetic analyses suggest that the LGMs were once a species that reproduced sexually, much like most carbon-based mammalian life forms. However, centuries of environmental degradation, genetic stagnation, and technological dependence rendered natural reproduction obsolete, leaving them entirely reliant on cloning to sustain their population.

Growth Rate & Stages

The growth and development of the Little Green Men (LGMs) offer insight into the devastating effects of genetic stagnation and environmental collapse. Autopsies revealed that their growth rate and life stages had been significantly altered over generations due to accelerated chronic aging, a species-wide condition resulting from cumulative mutations, cloning errors, and environmental toxins.

Ecology and Habitats

The homeworld of the Little Green Men (LGMs) was once a vibrant and diverse planet, remarkably similar to Earth in terms of its physical characteristics and ecological potential. However, its evolutionary trajectory diverged significantly, with synapsid-like repto-mammals as the dominant life forms, and mammals never evolving to prominence. This alien yet eerily familiar world became a victim of its inhabitants’ unchecked exploitation, eventually transforming into a barren, toxic wasteland that could barely sustain the LGMs’ existence.

Dietary Needs and Habits

Once, perhaps long ago, the Little Green Men’s homeworld was alive with abundance. Towering flora stretched skyward, vast plains teemed with resilient synapsid-like creatures, and oceans shimmered with life. Their ancestors likely hunted, gathered, and foraged, savoring the bounty their world offered. But by the time the LGMs turned their gaze toward Earth, those days were no more than distant echoes buried beneath centuries of survival-driven pragmatism.
  The LGMs who descended upon Earth in 1959 brought with them a stark reminder of what happens when life becomes utilitarian. Their diets, stripped of variety and vitality, consisted primarily of nutrient slurries and pastes—synthetic sustenance churned out by the machines of their Hive-City. These meals were precise, scientifically engineered to deliver every nutrient required for survival. But they were flavorless, colorless, and joyless, designed to fuel a species that had forgotten the pleasures of real food.
  For the LGMs, food was no longer an experience; it was an obligation. Their reliance on synthetic diets was a reflection of the devastation wrought upon their homeworld, where pollution and radiation had rendered natural ecosystems barren. Crops no longer grew. Animals that had once been part of their evolutionary lineage were long extinct. What remained was their Hive-City, where machines provided the only form of sustenance—efficient, sterile, and devoid of soul.
  When the LGMs arrived on Earth, they encountered something they had likely not experienced in centuries: abundance. Forests thrived, rivers teemed with life, and Earth’s creatures—so diverse, so unfamiliar—were ripe with vitality. The mere sight of Earth’s natural bounty seemed to stir something primal in the LGMs. Reports from the invasion describe moments of frenzied consumption. They devoured fruits straight from the trees, tore apart livestock with an unsettling fervor, and even consumed human flesh with an almost hedonistic delight.
  Survivors told chilling tales of LGMs abandoning their disciplined military tactics to gorge themselves on whatever edible resources they could find. To those who witnessed it, this behavior seemed more than hunger—it was desperation mingled with longing. These beings, once confined to synthetic meals in the toxic bowels of their dying world, appeared almost intoxicated by the flavors, textures, and vitality of Earth’s food. Even humans, horrific as it seemed, were not exempt from their consumption. To the LGMs, we were simply one more resource in a world bursting with abundance.
  And yet, for all their apparent relish, the LGMs revealed a critical truth: they had forgotten how to cook. Among all the recovered equipment from the invasion, there was no evidence of tools or devices designed for food preparation. The LGMs consumed Earth’s offerings raw—plants, fruits, and even meat—suggesting that cooking, once a possible aspect of their culture, had long since atrophied. Food preparation was unnecessary in a world where machines dispensed all sustenance in pre-packaged slurries.
  This lack of culinary knowledge spoke volumes about the state of their species. Cooking, after all, is not merely a practical skill but a reflection of creativity, culture, and shared experience. For the LGMs, the loss of cooking mirrored the broader decline of their society. What once might have been a communal activity had been reduced to the sterile efficiency of machines. Their reliance on nutrient pastes stripped away not just the pleasure of eating but the bonds it forged.
  It was in the raw, unbridled consumption of Earth’s foods that the LGMs seemed to reclaim, if only briefly, a part of themselves. Perhaps they remembered what it was to savor, to enjoy, to feel alive. Or perhaps their frenzied indulgence was a final, desperate grasp at something they knew they could never have again.
  In the end, the LGMs’ dietary habits were a microcosm of their existence: efficient but soulless, functional but hollow. Their story is a cautionary tale, a reminder of what can be lost when survival becomes the only priority, and the joys of life are sacrificed to the machinery of necessity. And in their tragic embrace of Earth’s bounty, there is a haunting truth—that even in the most alien of beings, the longing for life’s pleasures never truly fades.

Behaviour

To those who encountered them during the invasion, the Little Green Men (LGMs) appeared as an unrelenting, pitiless force, swarming like locusts to consume and destroy. They exhibited no mercy, no fear, and no sign of compromise. But beneath this cold and alien exterior lay a species shaped by desperation—a civilization driven to the brink of extinction, struggling for survival, and clinging to a dangerous superiority complex over humanity.

Additional Information

Social Structure

The social structure of the Little Green Men was shaped by the harsh realities of their dying homeworld, their reliance on cloning, and their desperate bid for survival. Evidence gathered from their Hive-City, recovered data, and autopsies suggests a rigid, hierarchical society dominated by a military-industrial complex and ruled by a centralized council, heavily supported—or perhaps controlled—by an advanced supercomputer system.

Facial characteristics

Eyes: Large, almond-shaped, and completely black, their eyes were adapted for low-light vision, likely to compensate for the dim conditions of their dying homeworld.
  Antennae: Two short, flexible antennae protruded from their heads. These structures are believed to function as sensory organs, potentially aiding in spatial awareness, communication, or environmental detection.
  Mouth and Jaw: Their mouths were small, with reduced teeth and jaw structures, suggesting a diet of processed or synthetic nutrients rather than natural food.

Average Intelligence

Brain Structure
  The LGMs had large, highly developed brains with pronounced regions associated with spatial awareness, memory, and problem-solving.
  The structure of their brains suggested a capacity for rapid learning and adaptation, though their reliance on cloning and rigid societal roles may have limited their intellectual diversity.

Perception and Sensory Capabilities

Vision: Optimized for low-light conditions, their eyes could perceive a broader spectrum of light than humans, including near-infrared.
  Hearing: Their auditory range was slightly narrower than humans, with a focus on low-frequency sounds, likely to navigate the dense, noisy environments of their Hive-City.
  Antennae: The exact function of their antennae remains speculative, but they are believed to enhance spatial awareness or serve as communication tools, possibly detecting electromagnetic signals. They also seem to have been a chemo-receptor functioning akin to a nose and providing scent based sensory input.

Civilization and Culture

Average Technological Level

The Little Green Men (LGMs) were significantly more advanced than 20th-century Earth, including its most sophisticated superscience. Their mastery of certain technologies allowed them to launch a devastating invasion that nearly led to humanity's extinction. However, their technological development was highly specialized, and glaring gaps in key areas suggest that their advancement was driven more by desperation than balance.
  Technological Superiority
Energy Weapons and Defense Systems
  Force Fields:
The LGMs’ force fields were among their most impressive technologies, capable of withstanding sustained attacks from conventional Earth weaponry and even some superpowered assaults. These energy barriers were powered by compact, highly efficient energy cells, rendering them nearly impervious to attack unless heavily concentrated fire was applied.
  Energy-Based Weaponry:
Their firearms and explosives were light, compact, and devastatingly powerful. Designed for maximum lethality, these weapons disintegrated matter with precision and ease. This technology was far beyond Earth’s superscience, combining miniaturization, energy efficiency, and adaptability.
  Cloning and Genetic Engineering
  The LGMs’ reliance on cloning extended beyond mere reproduction. They developed cloning and genetic engineering techniques to sustain their species, manufacture labor forces, and create specialized units for combat or infrastructure maintenance. Their biological technology allowed for near-perfect replication, but over-reliance on cloning led to genetic stagnation and wide spread sterility.
  Artificial Intelligence and Automation
  Their hive-like city was heavily automated, with AI systems managing power, production, and even governance. These systems allowed the LGMs to maximize efficiency and minimize labor, but they also fostered cultural stagnation and dependence.
  Teleportation Technology
  One of their most unique and advanced capabilities, teleportation allowed the LGMs to transport troops and supplies instantaneously across vast distances. This technology gave them unparalleled mobility on the battlefield, allowing for hit-and-run tactics that overwhelmed Earth’s defenses.
  Technological Gaps
Despite their remarkable achievements, the LGMs exhibited notable deficiencies in certain areas, which likely influenced their decision to invade Earth:
  Early-Stage FTL Travel
  The LGMs’ faster-than-light (FTL) technology was in its infancy. Their reliance on the discovery of stable hyperlanes, like the one connecting their homeworld to Earth, suggests they lacked reliable means of interstellar travel. Without stable FTL capabilities, their ability to escape their dying planet and seek out new worlds was severely limited.
  Lack of Terraforming Technology
  Perhaps the most glaring absence in their technological repertoire was terraforming. Despite their desperate need for a habitable world, the LGMs showed no evidence of having developed the ability to rehabilitate or modify planets to suit their needs. This technological gap left them with no alternative but to find a planet like Earth—already capable of supporting life—and take it by force.
  Limited Adaptability in Biological Technology
  While their cloning and genetic engineering were advanced, they failed to address their species’ growing biological decline. The LGMs focused on preserving what remained rather than innovating solutions to their sterility and genetic degradation. This shortsightedness left their population vulnerable to extinction.
  Neglect of Ecological Science
  The LGMs’ technological priorities seemed to favor immediate survival and expansion over long-term sustainability. This neglect contributed to the environmental collapse of their homeworld and reflects a fundamental blind spot in their scientific philosophy.
  Implications of Their Technological Gaps
The LGMs’ decision to invade Earth was likely driven by the limitations of their technological tree. Their inability to terraform, combined with their fledgling FTL capabilities, meant they were effectively trapped on their dying planet unless they could find a habitable world within reach. The secret hyperlane to Earth presented them with a unique opportunity, but also revealed their desperation.
  Had they possessed more developed terraforming technology or robust FTL capabilities, the LGMs might have sought out an uninhabited planet or rehabilitated their own. Instead, their technological choices—and omissions—forced them into a path of conquest, leading to their ultimate downfall.

Common Dress Code

The attire of the Little Green Men reflected their highly utilitarian and technologically focused society. Observations during the invasion, as well as findings from recovered bodies and infiltration missions, indicate that the LGMs predominantly wore practical utility suits designed to meet the demands of their harsh environment and specialized roles. These suits served as a critical component of their survival and operational efficiency, blending functionality with limited adaptability.

History

Long before they set their sights on Earth, the Little Green Men were a species of great potential. Their ancestors evolved on a planet not unlike Earth—a lush world teeming with life, its skies painted with vibrant colors, its seas rich with biodiversity. The LGMs themselves were descendants of a synapsid-like lineage, blending traits of Earth’s reptiles and mammals. Early in their history, they thrived as adaptable, curious beings, exploring their environment and shaping their civilization with ingenuity.
  As their society advanced, the LGMs entered a golden age. They were masterful engineers, skilled geneticists, and unparalleled explorers of the natural and technological worlds. Their vibrant cities rose alongside sprawling forests, and their oceans were filled with life and light. But their most remarkable achievements were in energy manipulation and cloning. These technologies, initially tools for medical progress and sustainability, would later seal their fate.
  The LGMs’ ambitions drove them to industrialize their planet at a breakneck pace. Fossil fuels and other resources were extracted with little regard for the ecological balance they disrupted. For centuries, the results of their actions seemed distant—a minor extinction here, a poisoned river there—but as their hunger for progress grew, so too did the damage. Forests withered into deserts, species vanished overnight, and once-pristine seas turned brackish and lifeless. Their golden age had given way to an era of overreach, where the cost of their advancement became undeniable.
  The planet itself began to rebel. The skies darkened with pollution, and the air grew heavy with toxins. Vast stretches of land became uninhabitable, forcing the LGMs to retreat into their last refuge: the Bastion Hive-City. This immense, hive-like metropolis burrowed deep into the planet’s crust, drawing power from its molten core. Within this mechanical womb, the last remnants of their civilization huddled together, safe for the moment but utterly dependent on the technology they had created.
  As the environment collapsed, so too did the species’ biological integrity. Generations of exposure to radiation and pollutants took their toll, rendering natural reproduction impossible. To survive, the LGMs turned to cloning. At first, this was a lifeline—a way to preserve their numbers and continue their species. But over time, their reliance on cloning became a crutch, and their genetic diversity dwindled. By the time of Earth’s 20th century, nearly all LGMs were identical copies, their stunted bodies and damaged biology a stark testament to their decline.
  Despite their peril, the LGMs refused to relinquish their dream of survival. When a hidden hyperlane their primative FTL ships could easily exploit was discovered connecting their dying world to Earth, it was hailed as salvation. The scouting missions that followed revealed a planet brimming with life, resources, and opportunity—a world that mirrored their own in its prime. Earth was their chance to begin anew. But there was a problem: Earth was inhabited.
  For decades, the LGMs debated their next move. Some advocated for caution, for diplomacy, for coexistence. But these voices were drowned out by the desperation of a species on the brink. Earth was not just a destination; it was their last hope. When the time came, the decision was unanimous: Earth would be theirs, and humanity—primitive and insignificant in their eyes—would be conquered or eradicated.
  The invasion of Earth in 1959 was swift and brutal, driven by the cold calculus of survival. LGM ships descended from the skies, their advanced weapons and impenetrable force fields overwhelming human defenses. Civilians, soldiers, and Specials alike fell before their relentless assault. To the LGMs, it was not a war but an acquisition. Earth was a resource, and humanity was an obstacle to be removed or a resource to be exploited.
  But the LGMs had underestimated humanity’s resilience. They had not foreseen the alliances forged between nations, the rise of the Global Legion of Specials, or the bravery of individuals who refused to surrender their home. And they could not have predicted the infiltration mission that would change everything.
  When the infiltration team breached the Bastion Hive-City on the LGM homeworld, they found not a bustling metropolis but a tomb. The air was thick with heat and the stench of decay, the walls vibrating with the hum of failing machinery. The city’s inhabitants were fewer than expected, their movements sluggish and automated. It was clear the LGMs were living on borrowed time, clinging to existence through technology that was as decayed as their planet.
  What the team saw haunted them for the rest of their lives. The skies of the LGM world were a sickly green-gray, choked with toxins that blotted out the sun. The seas, once teeming with life, were little more than poisoned sludge. The planet was not merely dying—it was dead, its ecosystems collapsed beyond repair. For some members of the team, the destruction of the Hive-City and its inhabitants was a necessary act of war. For others, it felt like a mercy.
  When the doomsday bomb detonated, it was the final chapter in the LGMs’ tragic story. Their last city, their last hope, was obliterated in an instant, and with it, the species that had once ruled a vibrant, thriving world was gone.
  The LGMs’ legacy is a cautionary tale. They were a species of brilliance and promise, undone by their own hubris and disregard for their environment. For humanity, their story serves as both a warning and a mirror—a reminder of what could happen if the lessons of sustainability and restraint are ignored. As the infiltration team left the scorched remains of the LGM homeworld, one haunting thought lingered in their minds: perhaps the LGMs’ world was not so different from Earth after all.
  This is of course mostly speculation as little to nothing is truely known about the LGMs, and if the greater galatic community knows Core Counsul restrictions prevent them from interacting with Earth regardless.

Interspecies Relations and Assumptions

The Little Green Men’s (LGM) invasion of Earth was humanity’s first widespread documented contact with an extraterrestrial civilization. However, all evidence suggests that this encounter was equally novel for the LGMs. Humanity may have been the only other sapient species they had ever encountered, and their reaction to us—characterized by disgust, hostility, and an immediate drive toward conquest—offers chilling insights into their psychology and societal decline.
EXTINCT
Scientific Name
Xeno sapiens viridens
Origin/Ancestry
Alien
Lifespan
The LGMs, despite their advanced genetics and cybernetics, were a species struggling against the effects of environmental collapse and genetic degradation resulting in an average lifespan of 50 to 70 Earth years,
Conservation Status
Officially, the Little Green Men (LGMs) are classified as extinct. Their species was declared eradicated following the detonation of the doomsday bomb on their homeworld, leaving behind only the barren remnants of their Hive-City and their failed conquest of Earth. Yet, among the few who know of the galaxy’s broader stage, whispers persist—stories of intervention by the enigmatic Core Counsel, protectors of galactic law and order.   The rumor is simple yet tantalizing. In the final days of the LGMs’ collapse, as their Hive-City burned and their species faced total annihilation, the Core Counsel is said to have acted. They are rumored to have extracted a small colony of LGMs and placed them on a distant, freshly terraformed planet, a world designed to replicate the conditions of their home before its fall. These rescued LGMs, according to the tale, were not like those who had invaded Earth. They were reportedly genetically stabilized, free of the flaws caused by centuries of cloning and pollution. A new beginning, orchestrated in secret.   The purpose, so the story goes, was not just preservation but observation. The Core Counsel, ever watchful, would monitor the LGMs to see if they could adapt—if they could learn from their mistakes and build a society that honored its environment rather than destroying it. Or, as many fear, they might simply repeat their doomed history on this new world.   No evidence supports this tale. The Core Counsel offers no comment, as is their way, and the galactic community remains divided on its plausibility. Some claim it aligns with the Counsel’s pattern of safeguarding near-extinct species with potential for redemption. Others argue that the LGMs’ destructive nature made them unworthy of such salvation.
Average Height
3 to 4 feet (0.9 to 1.2 meters)
Average Weight
50 to 70 pounds (23 to 32 kilograms)
Average Physique
Despite their small size, LGMs were densely muscled, granting them strength and agility far beyond what their stature suggested. This adaptation likely stemmed from evolving on a world with a slightly higher gravity than earth.
Body Tint, Colouring and Marking
Their smooth, green skin was slightly bioluminescent in dim light. This trait may have originally served as camouflage in their planet’s dense ecosystems, though its utility had diminished in their modern Super-City environment.

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