Delta Green Handlers Guide: A Comprehensive Article Plan (12/24/2025 07:51:46)
This guide equips Game Moderators with essential tools for Delta Green, delving into Lovecraftian horror, conspiracies, and the sacrifices agents endure.
It provides resources for crafting scenarios, managing NPCs, and maintaining a chilling atmosphere, vital for immersive gameplay experiences within the RPG.

Explore the history of Delta Green, unnatural threats, and scenario creation, alongside details of the organization and its internal conflicts.
The included scenario, “The Sentinels of Twilight,” offers a ready-to-play adventure, complemented by a glossary, index, and recommended media.
Welcome, Handler, to the unsettling world of Delta Green. This guide serves as your initiation into a clandestine struggle against forces beyond human comprehension. Delta Green isn’t a game about heroic triumphs; it’s about the agonizing choices made when confronting cosmic horror and the inevitable erosion of sanity.
As a Handler, you are the architect of these harrowing experiences, responsible for guiding Agents through investigations that threaten to unravel their minds and expose the fragility of reality. This role demands more than just rules mastery; it requires a nuanced understanding of Lovecraftian themes and a willingness to embrace ambiguity.

Prepare to navigate a labyrinth of conspiracies, government cover-ups, and the terrifying implications of a universe indifferent to humanity’s fate. Your agents will face impossible odds, and your success will be measured not in victories, but in the containment of unspeakable truths.
II. The Handler’s Role & Responsibilities
The Handler’s duties extend far beyond simply refereeing rules. You are the storyteller, the world-builder, and the voice of the unseen forces at play. Discretion is paramount; maintaining operational security is crucial, even within the game itself. You must portray a believable world steeped in conspiracy and dread, carefully controlling the flow of information to your Agents.
Responsibilities include crafting compelling scenarios, portraying diverse NPCs – allies, antagonists, and those caught in between – and adjudicating the consequences of Agent actions. Mastering the Sanity mechanic is vital, understanding how exposure to the Mythos impacts their psychological state.
Ultimately, you are responsible for creating a challenging and immersive experience that explores the themes of paranoia, sacrifice, and the limits of human understanding. Prepare for difficult choices and the potential for devastating outcomes.
III. Understanding the Core Concepts
Delta Green operates on a foundation of unsettling truths. Central to the experience is the acknowledgement of Lovecraftian horror – a cosmic indifference to humanity and the existence of entities beyond our comprehension. This isn’t about defeating monsters; it’s about containment and delaying the inevitable.
The Mythos itself is a vast and terrifying tapestry of lore, influencing events and corrupting individuals. Understanding its subtle effects is key to crafting believable scenarios. Crucially, Sanity represents the Agents’ mental fortitude, eroding with each encounter with the unnatural.
A fractured psyche impacts their abilities and can lead to long-term consequences. These core concepts aren’t merely rules; they are the thematic heart of Delta Green.

III.1. Lovecraftian Horror in Delta Green
Lovecraftian horror, within Delta Green, transcends jump scares and focuses on existential dread. It’s the chilling realization of humanity’s insignificance in a vast, uncaring cosmos. The threats aren’t inherently evil, but alien – their motivations and existence beyond human understanding.
This generates a unique form of terror, rooted in the unknown and the unknowable. Agents confront realities that shatter their worldview, leading to psychological trauma and moral compromises. The horror isn’t about winning; it’s about surviving, and the cost of that survival is often steep.
As a Handler, emphasize atmosphere and psychological impact over explicit monster descriptions, fostering a sense of creeping dread.
III.2. The Mythos & Its Influence
The Mythos, a collection of interconnected lore originating from H.P. Lovecraft, profoundly influences Delta Green. It’s not merely a bestiary of monsters, but a complex cosmology of ancient entities – the Great Old Ones – and their alien influence on Earth.
This influence manifests through forbidden knowledge, ancient artifacts, and cults dedicated to these beings. The Mythos isn’t a unified force; different entities have conflicting agendas, creating opportunities for intrigue and manipulation. Exposure to the Mythos corrupts, both physically and mentally.
Handlers should utilize the Mythos subtly, hinting at larger, incomprehensible truths rather than revealing everything at once, building a sense of pervasive dread.
III.3. Sanity & Its Erosion
Sanity is a core mechanic in Delta Green, representing an agent’s mental stability when confronted with the horrors of the Mythos. Unlike traditional RPGs, sanity isn’t simply a hit point pool; its erosion reflects a character’s psychological unraveling.
Witnessing unnatural events, deciphering forbidden texts, or performing unsettling rituals all chip away at an agent’s sanity. Loss of sanity manifests as phobias, manias, and ultimately, complete mental breakdown.
Handlers must portray the psychological toll of these experiences, emphasizing the long-term consequences of Mythos exposure. Sanity loss isn’t just a mechanical penalty; it’s a narrative tool for deepening character drama and illustrating the true cost of fighting the darkness.
IV. Delta Green: The Organization ⎯ A Deep Dive
Delta Green operates as a clandestine organization within the US government, tasked with investigating and containing supernatural threats; Born from the ashes of a previous, failed initiative, it exists outside normal channels, utilizing deniable assets and operating with extreme secrecy.
The organization’s structure is deliberately fragmented, designed to protect itself from exposure and internal compromise. Agents often work independently, receiving assignments through coded communications and relying on a network of contacts.
Understanding Delta Green’s history, internal dynamics, and resource limitations is crucial for Handlers. It’s a desperate, underfunded operation fighting a losing battle, relying on the dedication – and sacrifices – of its agents.
IV.1. History of Delta Green: Origins & Evolution
Delta Green’s origins trace back to the 1920s, with the Majestic 12 investigation into the Dunwich Horror; This initial foray into the Mythos led to the formation of a dedicated, albeit secretive, government group. Following successes and failures, the organization was formally established post-World War II, tasked with safeguarding humanity from supernatural incursions.
However, a catastrophic event in the 1960s – the Majestic 12 incident – resulted in the group’s official disbandment. Despite this, a core group of agents continued operations “off the books,” forming the “real” Delta Green.
This evolution shaped Delta Green into the fractured, paranoid organization it is today, haunted by past mistakes and constantly battling internal conflicts.
IV.2. Internal Structure & Hierarchy
Delta Green operates with a deliberately obfuscated structure, prioritizing compartmentalization and deniability. The organization lacks a clear, centralized command. Instead, it functions as a network of cells, each with a degree of autonomy, reporting through multiple, often conflicting, channels.
Handlers typically oversee small teams of Agents, acting as liaisons to higher-ups – often referred to as “Controllers” – whose identities remain largely unknown. A shadowy “Inner Circle” is rumored to exist, pulling the strings from behind the scenes.
This fragmented hierarchy fosters mistrust and internal power struggles, reflecting Delta Green’s core philosophy: no single point of failure should compromise the whole.
IV.3. Funding & Resources
Delta Green’s funding is a murky affair, derived from a complex web of black budget allocations, illicit operations, and discreet donations from individuals aware of the Mythos. Official channels provide limited, carefully vetted resources, forcing Agents to rely on ingenuity and improvisation.
Access to advanced technology is restricted, favoring practical tools and established investigative techniques. Safehouses are sparsely equipped, prioritizing functionality over comfort. The organization leverages existing government infrastructure, exploiting loopholes and bureaucratic inefficiencies.
Handlers must be resourceful, securing funding and supplies through unconventional means, often blurring ethical lines. Maintaining operational secrecy necessitates a constant struggle against budgetary constraints and resource scarcity.
V. The Schism: Two Delta Greens
Delta Green isn’t a monolithic entity; a deep schism divides its operatives. The “Official” Delta Green represents the publicly acknowledged, albeit deniable, arm of the US government, constrained by bureaucracy and political considerations.
However, the “Real” Delta Green operates in the shadows, driven by a desperate need to protect humanity, regardless of cost or legality. This faction prioritizes effectiveness over protocol, employing ruthless methods and embracing morally ambiguous choices.
Handlers must navigate this conflict, understanding the motivations and methods of both sides. Agents may unknowingly serve conflicting agendas, creating internal tensions and jeopardizing operations. Recognizing the nuances of this schism is crucial for long-term campaign success.
V.1. The “Official” Delta Green
The “Official” Delta Green functions as a clandestine branch within the federal bureaucracy, receiving funding and direction from higher governmental powers. While aware of the Mythos, its primary concern is maintaining plausible deniability and avoiding widespread panic.
This faction adheres to established protocols, prioritizing legal frameworks and minimizing collateral damage – even if it compromises operational efficiency. Agents operating within this structure often face bureaucratic hurdles and political interference.
Handlers managing agents within the “Official” Delta Green must account for these limitations, crafting scenarios that align with governmental objectives and minimizing exposure. Success is measured not only by containing threats but also by preserving the illusion of normalcy.
V.2. The “Real” Delta Green: Motivations & Methods

The “Real” Delta Green represents a more radical and pragmatic faction, born from disillusionment with the official branch’s constraints. Driven by a desperate need to protect humanity, they operate outside legal boundaries, prioritizing results over protocols.
This group believes the Mythos poses an existential threat requiring extreme measures, including sacrificing individuals and embracing morally ambiguous tactics. They actively seek forbidden knowledge and utilize unconventional methods to combat unnatural forces.
Handlers guiding agents within this Delta Green must prepare for difficult choices and the erosion of ethical lines. Success hinges on unwavering dedication to the cause, even at a shattering personal cost, and a willingness to operate in the shadows.
V.3. Navigating the Conflict as a Handler
As a Handler, awareness of the schism is paramount. Agents may unknowingly receive conflicting orders or encounter operatives from the opposing faction, creating internal strife and jeopardizing missions.
Maintaining operational security is crucial; avoid revealing the full extent of the conflict to agents unless absolutely necessary. Carefully vet information sources and be prepared for deception from both sides.

Handlers must subtly guide their teams, balancing the need for effectiveness with the preservation of their agents’ sanity and moral compass. The “Real” Delta Green’s methods demand careful consideration, and potential consequences must be weighed.
VI. Unnatural Threats: A Handler’s Compendium
Delta Green faces horrors beyond human comprehension. This compendium details Entities and Great Old Ones, outlining their characteristics and the insidious ways they influence the world. Understanding these beings is vital for crafting believable and terrifying scenarios.
Unnatural Tomes and Rituals represent significant dangers, offering forbidden knowledge at a terrible cost. Handlers must portray the allure and consequences of such practices, emphasizing the erosion of sanity and potential for catastrophic outcomes.

Furthermore, this section provides guidance on creating custom threats, allowing Handlers to tailor encounters to their campaigns. Consider the Mythos’ influence and the unique vulnerabilities of each entity.
VI.1. Entities & Great Old Ones: Overview & Characteristics
Entities represent fragments of the Mythos, lesser beings serving the Great Old Ones, often manifesting through cults or localized phenomena. They possess limited power but are insidious, corrupting influences on humanity.
Great Old Ones, however, are cosmic forces of immense power, existing outside human understanding. Their mere presence warps reality, inducing madness and despair. Each possesses unique characteristics – Hastur’s subtle influence, Cthulhu’s aquatic dominion, and Nyarlathotep’s deceptive forms.
Handlers must emphasize their alien nature, portraying them as fundamentally incomprehensible. Focus on the effects they have on the world and the psychological toll they take on investigators, rather than detailed physical descriptions.
VI.2. Unnatural Tomes & Rituals: Dangers & Effects
Unnatural tomes, like the Necronomicon, contain forbidden knowledge, offering glimpses into the Mythos but at a terrible cost. Reading them invariably leads to Sanity loss and potential exposure to dangerous entities.
Rituals, often detailed within these texts, attempt to summon or influence Mythos beings. Success is rarely absolute, and unintended consequences are guaranteed – dimensional breaches, monstrous manifestations, or the corruption of participants.
Handlers should emphasize the addictive nature of this knowledge and the escalating risks involved. Rituals aren’t simple spells; they demand sacrifices, precise timing, and often, the unwitting assistance of others.
VI.3. Creating Custom Unnatural Threats
Designing unique threats requires understanding the core principles of Lovecraftian horror: cosmic indifference, unknowable motives, and the fragility of human perception. Avoid simply reskinning existing monsters; focus on the idea behind the horror.
Consider the threat’s origin – is it a fragment of a Great Old One, a localized manifestation of Mythos energy, or a human cult gone horribly wrong? Define its goals, even if those goals are incomprehensible to humans.
Crucially, detail the threat’s effects on the environment and the minds of those exposed to it; Sanity loss, physical mutations, and psychological trauma are essential components.
VII. Scenario Creation & Campaign Management
Effective Delta Green scenarios prioritize investigation and atmosphere over direct combat. Begin with a compelling mystery – a strange disappearance, an unsettling artifact, or a series of bizarre occurrences; Focus on building tension through clues, red herrings, and a sense of mounting dread.
Pacing is critical. Start slow, allowing agents to gather information and develop theories. Gradually escalate the stakes, revealing the true horror in layers; Utilize misdirection to keep players guessing and challenge their assumptions.
Campaigns benefit from overarching narratives and recurring NPCs. Consider the long-term consequences of agent actions and the toll the investigation takes on their sanity and lives.
VII.1. Building Compelling Narratives
Compelling Delta Green narratives hinge on unsettling mysteries, not monster hunts. Begin with a seemingly mundane event that unravels into something profoundly disturbing. Ground the supernatural in reality, weaving it into the fabric of everyday life. Focus on the human cost of confronting the Mythos.
Develop a strong central mystery with layers of intrigue. Introduce ambiguous clues and unreliable narrators to create a sense of uncertainty. Explore themes of paranoia, isolation, and the fragility of sanity.
Remember, the true horror lies not in the monsters themselves, but in the realization that humanity is insignificant in the face of cosmic indifference.
VII.2. Pacing & Tension Building
Effective pacing in Delta Green is crucial. Start slowly, establishing a sense of normalcy before introducing unsettling elements. Gradually escalate the tension, interspersing moments of quiet investigation with bursts of intense action or horrifying discovery.
Utilize “false peaks” – moments that seem like climaxes but are merely stepping stones to greater horrors. Employ red herrings and misdirection to keep players guessing. Don’t reveal too much too soon; maintain a constant sense of unease and anticipation.
Remember, the goal isn’t constant adrenaline, but a creeping dread that erodes the agents’ sanity and leaves them questioning their perceptions.
VII.3. Utilizing Red Herrings & Misdirection
Masterful use of red herrings and misdirection is paramount in Delta Green. Introduce plausible, yet ultimately irrelevant, clues and suspects to lead agents down blind alleys, consuming valuable time and resources.
Craft scenarios where initial assumptions prove false, forcing players to re-evaluate their understanding of events. Subtlety is key; avoid overly obvious distractions. Instead, present information that appears logical, but subtly obscures the truth.
Remember, the Mythos thrives on deception. Employing these techniques not only increases tension but also mirrors the agents’ struggle against forces beyond their comprehension.
VIII. Non-Player Characters (NPCs) for Handlers
Effective NPCs are crucial for a dynamic Delta Green campaign. Populate the world with allies offering expertise, contacts providing crucial information, and antagonists presenting formidable obstacles to the agents’ investigations.
Develop NPCs with layered motivations and secrets, making them more than simple quest-givers or villains. Consider their personal vulnerabilities and how the Mythos might exploit them. A seemingly helpful contact could be compromised, or an enemy might possess a hidden agenda.
The guide provides sample NPCs, ready for immediate use, but encourages Handlers to create unique characters tailored to their specific scenarios, enriching the narrative and player engagement.
VIII.1. Allies & Contacts: Building Trust & Utilizing Expertise
Cultivating reliable allies and contacts is paramount for Delta Green agents. These individuals provide vital expertise – forensic analysis, occult knowledge, bureaucratic access – unavailable through conventional channels.
However, trust is a fragile commodity. Allies may have their own agendas, vulnerabilities, or be unknowingly compromised by Mythos influences. Handlers must carefully assess their reliability and manage the risks associated with utilizing their assistance.
Building rapport requires discretion and a willingness to reciprocate favors. Remember, these contacts operate outside the law and expect a degree of protection. A well-placed ally can be the difference between success and catastrophic failure.
VIII.2. Antagonists & Obstacles: Creating Challenges for Agents
Effective antagonists extend beyond monstrous entities; they encompass human adversaries – rival agencies, corrupt officials, zealous cultists – who actively obstruct Delta Green’s operations. These obstacles should be multifaceted, possessing motivations and resources that challenge agents on intellectual and moral levels.
Consider antagonists with personal connections to the agents, creating dilemmas and forcing difficult choices. Bureaucratic red tape, media scrutiny, and internal investigations can also serve as potent obstacles, mirroring the real-world frustrations of clandestine operations.

Remember, the most compelling challenges aren’t simply defeated; they leave lasting consequences, forcing agents to confront the ethical ambiguities inherent in their work.
VIII.3. Sample NPCs: Ready-to-Use Characters
To expedite game preparation, Delta Green handlers benefit from pre-generated Non-Player Characters (NPCs). These include Dr. Amelia Grant, a skeptical medical examiner with a hidden interest in the occult; Agent Marcus Bellwether, a seasoned FBI operative unknowingly manipulated by unnatural forces; and Evelyn Reed, a resourceful journalist investigating strange occurrences.
Each NPC profile details their background, motivations, skills, and potential connections to ongoing investigations. Handlers can adapt these characters or use them as templates for creating unique individuals.
These samples provide immediate resources, saving valuable time and ensuring a diverse cast of characters to populate your Delta Green campaigns, enriching the narrative and agent interactions.
IX. Handler Tools & Resources
Effective Delta Green handling demands more than rules mastery; it requires cultivating a specific atmosphere. Utilize evocative music, detailed descriptions, and unsettling imagery to immerse players in the creeping dread. A comprehensive handler-facing glossary clarifies Mythos terminology and obscure references, ensuring consistent world-building.
Furthermore, a detailed index streamlines information retrieval during play. Expand your inspiration with recommended media – films, literature, and art – that capture the essence of Lovecraftian horror. These resources empower handlers to deliver a truly chilling and unforgettable gaming experience.
Mastering these tools elevates your game beyond mechanics, fostering genuine fear and paranoia.
IX.1. Maintaining a Chilling Atmosphere
Creating a truly unsettling Delta Green experience hinges on atmosphere. Employ descriptive language focusing on sensory details – the smell of decay, the oppressive silence, the chilling dampness. Music is crucial; ambient soundscapes and discordant tones amplify tension far more effectively than jump scares.
Dim lighting, evocative props, and even carefully chosen scents can heighten immersion. Encourage player descriptions of their characters’ emotional states, emphasizing fear and paranoia. Slow the pace, allowing dread to build gradually rather than rushing into action.
Remember, the goal isn’t simply to frighten, but to instill a sense of cosmic dread and helplessness.
IX.2. Utilizing Handler-Facing Glossary & Index

The Handler’s Guide glossary is an invaluable resource, defining key terms, Mythos entities, and Delta Green jargon. Consistent use of this terminology reinforces the setting’s unique flavor and immerses agents in the clandestine world they inhabit. Don’t hesitate to subtly incorporate these terms into NPC dialogue and investigative reports.
The index allows for rapid retrieval of specific information, streamlining preparation and improvisation during sessions. Utilize it to quickly locate details on rituals, organizations, or individuals encountered during play.
Mastering these tools ensures a cohesive and authentic Delta Green experience, enhancing both narrative consistency and player engagement.
IX.3. Recommended Media for Inspiration
To cultivate the chilling atmosphere central to Delta Green, draw inspiration from a diverse range of media. Classic Lovecraftian horror, such as the works of H.P. Lovecraft himself, provides foundational themes and motifs. Films like The Thing and Alien exemplify paranoia and cosmic dread.
Explore conspiracy thrillers – All the President’s Men or Three Days of the Condor – to understand investigative procedures and bureaucratic intrigue. Psychological horror, including works by Thomas Ligotti, can inform the erosion of sanity.
Consider supplementing with documentaries on real-world conspiracies and unexplained phenomena to ground the fantastical elements in a semblance of reality, enriching the game’s verisimilitude.
X. The Sentinels of Twilight: Scenario Breakdown
“The Sentinels of Twilight” presents a compelling introductory scenario for Delta Green agents, steeped in rural mystery and escalating dread. The plot revolves around strange occurrences in the isolated town of Havenwood, Maine, linked to a forgotten cult and a slumbering entity.
Key locations include the dilapidated Blackwood Manor, the unsettling Havenwood Historical Society, and the surrounding, ominously silent forests. Crucial NPCs encompass Sheriff Brody, a skeptical local lawman, and Old Man Hemlock, a reclusive historian harboring dark secrets.
Potential outcomes range from containing the threat with minimal exposure to a catastrophic breach, attracting unwanted attention from higher powers. Handler guidance emphasizes pacing, building tension, and allowing player agency to shape the narrative’s grim conclusion.

X.1. Overview of the Scenario Plot
“The Sentinels of Twilight” unfolds in Havenwood, Maine, where unsettling disappearances and bizarre animal behavior plague the isolated community. Agents are dispatched to investigate after local authorities dismiss the incidents as isolated occurrences. The investigation quickly reveals a pattern connected to the Blackwood family and their ancestral manor.
The plot thickens as agents uncover evidence of a dormant cult worshipping a forgotten entity tied to the land. Ritualistic practices and unearthed artifacts hint at an impending awakening, threatening to unleash chaos upon Havenwood and beyond.
The core narrative centers on preventing the entity’s full manifestation, requiring agents to decipher cryptic clues, confront cultists, and make difficult choices with potentially devastating consequences.
X.2. Key Locations & NPCs within the Scenario
Key locations in “The Sentinels of Twilight” include the Blackwood Manor – a decaying estate steeped in dark history – Havenwood’s local police station, and the secluded Old Mill, serving as a clandestine ritual site. The surrounding forests and coastline also play crucial roles, harboring hidden clues and dangers.
Notable NPCs are Elias Blackwood, the reclusive patriarch with unsettling knowledge; Sheriff Brody, a skeptical but ultimately helpful law enforcement officer; and Martha Crane, a local historian possessing fragmented lore about Havenwood’s past.
Agents will also encounter various cult members, each with unique motivations and levels of devotion, presenting opportunities for interrogation, infiltration, or direct confrontation. Careful handling of these interactions is vital.
X.3. Potential Outcomes & Handler Guidance
“The Sentinels of Twilight” offers varied outcomes, ranging from complete containment of the threat – albeit with significant agent Sanity loss – to a catastrophic failure resulting in widespread panic and potential Mythos incursion. A partial success, suppressing the immediate danger but leaving lingering traces, is also plausible.
As Handler, prioritize emphasizing the moral ambiguities inherent in Delta Green operations. Encourage agents to consider the long-term consequences of their actions, even successful ones. Prepare for difficult choices and the erosion of their characters’ humanity.
Remember, failure is often more compelling than victory in Delta Green. Focus on the narrative impact and the psychological toll on the agents, rather than solely on achieving a “win” condition.