Original score by Uumen volume

Cover art for The Moon Is an Annoyance. The Earth floats against black space. On the bottom, the horizon of the Moon.

The Moon Is an Annoyance

The rover is down. Two crew members are stranded on the lunar surface with failing life support and a ten-kilometer trek back to base. Vacuum, radiation, power loss, bad decisions. The Moon doesn’t hate you. It doesn’t notice you at all.

A hard science catastrophe engine for lunar EVA missions. For two players and a GM. 90-120 minutes per scenario. Uses percentile dice.

Run the included survival scenario, or build your own lunar disasters using the same system: branching terrain, subsystem collapse, human pressure, and moral tradeoffs under extreme constraints.

Features:

Modular node-based exploration
Cascading life-support failures
Human factions, obligations, and bad deals
Tools for authoring new lunar scenarios
Over a dozen plausible, unheroic ways to die in space^*
Original electroacoustic soundtrack by Uumen

* Possible lunar surface terminal events include:

1. Hypoxia Collapse: Suit delta-P loss → O2 falls below metabolic threshold; unconsciousness in seconds. 2. CO2 Scrubber Poisoning: Sorbent failure → hypercapnia → convulsions, blackout. 3. Rapid Decompression: Structural failure → ebullism → tissue swelling and lung trauma. 4. Slow Leak Asphyxiation: Micropuncture → unnoticed pressure drift → hypoxic disorientation. 5. Thermal Runaway: Cooling loop failure in sunlight → heat buildup, confusion, collapse. 6. Cryogenic Exposure: Thermal system loss in shadow → heat drain, stiff joints, loss of function. 7. Suit Electrical Fire: Power bus fault → internal wiring ignition → smoke, heat, toxic off-gassing. 8. EM Flare Dose: Unshielded solar proton event → acute radiation poisoning. 9. Visor Failure: Abrasion, glare, or condensation → blindness, misstep, fatal suit trauma. 10. Regolith Infiltration: Abrasive particles in seals → bearing failure → depressurization. 11. Pump Failure: Suit circulation collapse → temperature divergence → loss of consciousness. 12. Navigation Drift: Comms blackout + terrain shadow → missed route marker → fall, suit breach, or unrecoverable detour. 13. Vestibular Disorientation: Sensory conflict in low-g/high-contrast lighting → total spatial vertigo → fatal impact trauma.

Releases July 2026.

For fans of: The Martian, For All Mankind, Gravity

For release updates, convention availability, and PDFs when they go live, join the Mesolit Games mailing list.

Original score by Uumen. Uumen is Aleksi Villberg and Tommi Gröhn.