Moonbase Blues

Moonbase Blues is a rules-lite sci-fi horror scenario compatible with Mothership RPG 1e. Set on an isolated moonbase observatory, players face light-borne contaminants and infected colonists in an uncanny tide of blue. Features a bi-fold brochure layout, facility maps, random tables for hazards, terrified NPC survivors, and an audio distress signal handout. Ideal for one-shots or campaign integration.

At-a-glance

Horror • Needs GM • 3/5 complexity • Low prep

Genres:
Horror Science Fiction
Mechanics:
Rules Lite Survival
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Moonbase Blues

Moonbase Blues is a 2-page sci-fi horror scenario compatible with the Mothership RPG 1st Edition (Tuesday Knight Games), or usable with your favorite sci-fi tabletop RPG system. Designed for one-shots or as a location in ongoing campaigns, it emphasizes survival horror in a claustrophobic setting where light itself becomes the enemy.

Theme and Setting

Set on Azure Base, an isolated moonbase observatory, Moonbase Blues plunges players into a contained environment where a mysterious light-borne contamination has infected the colonists. The base is being overwhelmed by an uncanny tide of blue, creating a tense atmosphere of isolation and paranoia.

How Play Feels

The scenario draws inspiration from classic sci-fi horror like The Thing and Event Horizon , emphasizing psychological tension and environmental hazards over direct combat. Players must navigate compromised facilities, encounter terrified survivors, and confront unconventional threats that challenge creative problem-solving.

What Makes It Distinct

Moonbase Blues utilizes the Mothership Panic Engine (d100 roll-under) or can be adapted to any sci-fi system. The module provides random tables for monster appearance, light-related hazards, and searchable items throughout the facility.

Where It May Not Fit

You want combat and action to drive most of the session You mainly want short standalone sessions with minimal carryover.

Decision guide

What this game is about

Key facts
Players
2-5 players + GM
Session
120-240 minutes
Prep
Low
Play profile
Complexity
3/5
New GM Fit
4/5
Roleplay Focus
4/5
Combat Focus
2/5
Tactical Depth
2/5
Campaign Depth
4/5
Who it suits
Best for
Groups that want tension, danger, and unease to stay active at the tableTables that want quick onboarding and low mechanical dragPlayers who want character, atmosphere, or story to matter more than pure tactics
Avoid if
You want combat and action to drive most of the sessionYou mainly want short standalone sessions with minimal carryoverYou want low-tension or low-threat play

A strong fit for groups that want tension, danger, and unease to stay active at the table, with rules Lite helping define the experience.

Agent data

Structured data and an explicit decision profile JSON document are available for remote agents.

Open agent JSON