334 Cepheus is released under the Open Game License v1.0a. Game mechanics are Open Game Content; the name “334 Cepheus” and designated Product Identity are not. Cepheus Engine and Samardan Press are trademarks of Jason "Flynn" Kemp. This packaging is not affiliated with Jason "Flynn" Kemp or Samardan Press. Legal

334 Cepheus — Part 9: World & Adventure Generation

Design Philosophy

The referee's job is not to simulate a universe. It is to create situations worth escaping from. These tools generate worlds, encounters, and adventures fast enough to improvise at the table, but deep enough to sustain a campaign. Use what you need. Skip what you don't.

World Generation: The Universal World Profile (UWP)

Every world is summarized by a UWP code: A788899-8

Each digit represents a trait, rated 0–F (hexadecimal: 0–9, A=10, B=11, C=12, D=13, E=14, F=15).

Position	Code	Trait	Description
1	A	Starport	Quality of spaceport facilities
2	7	Size	Planetary diameter (0 = asteroid, A = 16,000km+)
3	8	Atmosphere	Type and breathability
4	8	Hydrographics	Percentage of surface water
5	8	Population	Order of magnitude (0 = 0, A = 10 billion+)
6	9	Government	Type of ruling authority
7	9	Law Level	Restrictiveness (0 = none, F = totalitarian)
8	8	Tech Level	Maximum technological capability

Generating a World (Quick Method)

Roll or choose each element. For a full sector, roll randomly. For a specific adventure, choose deliberately.

1. Starport (2D6)

Roll	Code	Quality	Fuel	Repair	Berthing (Cr/week)
2	X	None	No	No	0
3–4	E	Frontier	No	No	10
5–6	D	Poor	Unrefined	Limited	50
7–8	C	Routine	Unrefined	Limited	100
9–10	B	Good	Refined	Available	500
11–12	A	Excellent	Refined	Full	1,000

2. Size (2D6−2)

Roll	Code	Diameter	Gravity	Notes
0	0	<1,000km	Negligible	Asteroid, belt
1	1	1,600km	0.05g	Low gravity
2–3	2–3	3,200–4,800km	0.15–0.25g	Small, tectonically dead
4–5	4–5	6,400–8,000km	0.4–0.5g	Mars-like
6–8	6–8	9,600–11,200km	0.7–1.0g	Earth-like
9–10	9–A	12,800–16,000km	1.1–1.5g	Heavy world
11+	B+	16,000km+	1.6g+	High gravity, dense atmosphere

3. Atmosphere (2D6−7 + Size, minimum 0)

Code	Type	Pressure	Breathable?	Gear Required
0	None	Vacuum	No	Vacc Suit
1	Trace	<0.001 atm	No	Vacc Suit
2	Very Thin, Tainted	0.001–0.09	No	Respirator + Filter
3	Very Thin	0.001–0.09	Yes	Respirator
4	Thin, Tainted	0.1–0.42	No	Filter Mask
5	Thin	0.1–0.42	Yes	—
6	Standard	0.43–1.0	Yes	—
7	Standard, Tainted	0.43–1.0	No	Filter Mask
8	Dense	1.01–2.0	Yes	—
9	Dense, Tainted	1.01–2.0	No	Filter Mask
A (10)	Exotic	Varies	Special	Special
B (11)	Corrosive	Varies	No	Vacc Suit
C (12)	Insidious	Varies	No	Vacc Suit, special precautions
D+	—	—	—	Referee's discretion

4. Hydrographics (2D6−7 + Size, 0–10)

Code	Coverage	Climate Notes
0	0%	Desert world
1	10%	Dry world
2	20%	Arid
3	30%	Sparse water
4	40%	Drought-prone
5	50%	Marginal
6	60%	Earth-like
7	70%	Wet
8	80%	Archipelago
9	90%	Island chains
A (10)	100%	Water world

5. Population (2D6−2)

Code	Population	Description
0	0	Uninhabited
1	Tens	Outpost
2	Hundreds	Village
3	Thousands	Small town
4	Tens of thousands	Town
5	Hundreds of thousands	City
6	Millions	Multiple cities
7	Tens of millions	Nation-state
8	Hundreds of millions	Continental
9	Billions	Global civilization
A (10)	Tens of billions	Ecumenopolis or hive

6. Government (2D6−7 + Population, minimum 0)

Code	Type	Typical Law	Stability
0	None	0	Anarchy, unstable
1	Company/Corporation	Varies	Profit-driven
2	Participating Democracy	Low–Medium	Stable, slow
3	Self-Perpetuating Oligarchy	Medium	Stable, corrupt
4	Representative Democracy	Medium	Stable
5	Feudal Technocracy	Medium	Merit-based hierarchy
6	Captive Government	High	Occupied, puppet
7	Balkanization	Varies	Multiple factions
8	Civil Service Bureaucracy	High	Stable, stifling
9	Impersonal Bureaucracy	Very High	Kafkaesque
A (10)	Charismatic Dictator	Varies	Personality cult
B (11)	Non-Charismatic Leader	High	Military junta
C (12)	Charismatic Oligarchy	Medium	Corporate/religious council
D (13)	Religious Dictatorship	Very High	Theocratic
E (14)	Religious Autocracy	Total	God-king
F (15)	Totalitarian Oligarchy	Total	Surveillance state

7. Law Level (2D6−7 + Government, 0–F)

Code	Weapons	Armor	Psionics	Trade Restrictions
0	No restrictions	No restrictions	Unregulated	None
1	Poison gas, explosives banned	None	Registration	None
2	Portable energy weapons banned	Combat armor banned	Registration, testing	Some goods taxed
3	Military weapons banned	None	Restricted, licensed	Some goods prohibited
4	Light assault weapons banned	None	Illegal	Many goods prohibited
5	Personal concealable weapons banned	Mesh+ banned	Illegal, death penalty	Most trade regulated
6	All firearms banned	All armor banned	Absolute ban	Strict customs
7	Shotguns banned	All armor banned	Absolute ban	Military inspection
8	All bladed weapons banned	All armor banned	Absolute ban	Total customs control
9	All weapons banned	All armor banned	Absolute ban	Trade by permit only
A+	No civilian activity permitted	—	—	Command economy

8. Tech Level (1D6 + modifiers based on starport, size, atmosphere, hydrographics, population, government)

Code	Era	Capabilities
0	Stone Age	Primitive tools
1	Bronze/Iron Age	Metallurgy, agriculture
2	Renaissance	Printing, sailing ships
3	Industrial	Steam, early firearms
4	Mechanized	Internal combustion, radio
5	Broadcast	Television, fission, jets
6	Atomic	Early spaceflight, computers
7	Spaceflight	Orbital habitats, lasers
8	Interplanetary	Jump-1, Vacc Suits, fusion
9	Interstellar	Jump-2, combat armor
10 (A)	Advanced	Jump-3, battle dress, neural comms
11 (B)	High	Jump-4, anagathics, AI
12 (C)	Very High	Jump-5, molecular manufacturing
13 (D)	Ultra	Jump-6, near-immortality
14 (E)	Transcendent	Antimatter, planetcraft
15 (F)	Singularity	Post-human, incomprehensible

World Tags

Beyond the UWP, every world has two Tags that define its personality. Roll or choose:

D66	Tag	Implication
11	Alien Ruins	Ancient structures, valuable artifacts, xenoarchaeologists, looters
12	Asteroid Miners	Independent prospectors, claim jumpers, volatile community
13	Atmospheric Plague	Filter masks required. Quarantine protocols. Black market vaccines.
14	Bureaucratic Hell	Three forms to breathe. Bribery is standard procedure.
15	Corporate State	Everything is owned. Everyone is employed. Dissent is downsized.
16	Criminal Haven	Law level is a suggestion. Syndicates run the ports.
21	Cultural Conservatory	Strict preservation of pre-space traditions. Offworlders are suspect.
22	Cybernetic Theocracy	Flesh is weak. Augmentation is salvation. Natural humans are heretics.
23	Desert World	Water is currency. Cities are underground or domed.
24	Ecumenopolis	One city covers the planet. Vertical slums. Sky-high wealth disparity.
25	Failed Colony	Terraforming collapsed. Survivors are desperate. Infrastructure crumbles.
26	Feudal Empire	Noble houses control territory. Honor duels. Vassalage.
31	Free Port	No tariffs, no questions. Pirates and merchants mingle.
32	Frozen Waste	Ice covers everything. Thermal gear mandatory. Subglacial oceans.
33	Garden World	Paradise. Everyone wants it. Wars are fought over it.
34	Generation Ship Wreck	Ancient colony ship crashed here. Descendants forgot their origins.
35	Gladiatorial Culture	Public combat is entertainment and justice.
36	Hive Mind	Telepathic collective. Individuality is aberration.
41	Hostile Biosphere	Everything is toxic, venomous, or carnivorous.
42	Imperial Capital	Seat of regional power. Spies, diplomats, and assassins.
43	Lost Technology	TL 15 artifacts in a TL 8 society. Guarded zealously.
44	Military Outpost	Fortress world. Civil liberties suspended. Leave quickly.
45	Nomadic Fleet	No fixed ports. Population lives in ships, stations, or rovers.
46	Orbital Ring	Artificial ring structure dominates sky. Elevator access.
51	Penal Colony	Prison labor drives the economy. Escape attempts are common.
52	Psionic Institute
53	Quarantined	Biological or memetic hazard. Shoot-on-sight enforcement.
54	Religious Pilgrimage	Sacred site. Millions visit. Merchants and pickpockets thrive.
55	Research Station	Scientists study something dangerous. They need supplies.
56	Robotic Servitors	AI and robots perform all labor. Humans are obsolete or idle.
61	Seeded World	Deliberately terraformed. Designers still monitor.
62	Smuggler's Route	Hidden caches, blind sensors, corrupt port authorities.
63	Tidal Locked	One side always faces sun. Twilight belt is habitable.
64	Tomb World	Extinct civilization. Valuable. Haunted (maybe literally).
65	War Zone	Active conflict. Mercenaries welcome. Civilians are targets.
66	Xenophobic Isolationists	Offworlders are shot on sight. Or enslaved. Or eaten.

Encounter Generation

Space Encounters

Roll 1D6 when entering a system, or 1D6 per week in transit.

Roll	Encounter
1	Customs Inspection. Random search or targeted. Law level determines hostility.
2	Pirate. Single ship or wolf pack. Thrust comparison determines if escape is possible.
3	Derelict. Abandoned ship. Salvage, trap, or distress beacon?
4	Solar Flare / Navigation Hazard. Pilot 8+ to avoid damage or delay.
5	Other Trader. Potential ally, competitor, or mark.
6	Military Patrol. They want to scan your transponder. Have you been naughty?

Complication (roll 1D6 after any encounter):

Roll	Complication
1	The encounter was bait. Reinforcements arrive in 1D6 rounds.
2	A third party is watching. Your actions will be reported.
3	The encounter damaged something you didn't notice. System failure in 1D6 hours.
4	Someone on your crew recognizes the other party. History complicates things.
5	The encounter reveals a secret (hidden base, smuggler cache, distress signal).
6	No complication. Clean encounter.

Animal Encounters

When exploring wilderness, roll 1D6 per day or when entering new terrain.

Terrain	Roll Modifier
Clear, settled	−2
Plains, scrub	+0
Forest, jungle	+1
Mountain, desert	+0
Swamp, marsh	+1
Ocean, ice	+1

Roll	Encounter
0–1	None
2	Herbivore herd. Passive. Potential food/resource.
3	Scavenger pack. Follows the party, attacks the weak.
4	Predator. Hunts. May stalk for hours before striking.
5	Grazer mob. Herbivores in panic. Stampede hazard.
6	Apex predator. Lethal. Avoid or fight with preparation.
7+	Exotic / Alien. Referee's choice. Sentient? Psionic? Technological?

Animal Template (roll 1D6 for each trait):

Trait	Roll 1	Roll 2	Roll 3	Roll 4	Roll 5	Roll 6
Size	Tiny (1D6 HP)	Small (2D6)	Medium (3D6)	Large (4D6)	Huge (5D6)	Massive (6D6)
Weapon	Teeth/claws	Horns/spikes	Constrict/crush	Poison/spit	Charge/trample	Tool use
Armor	None	Hide (AR 2)	Scales (AR 4)	Shell (AR 6)	Exoskeleton (AR 8)	Energy field
Behavior	Flee	Avoid	Curious	Territorial	Hunt	Ambush
Movement	Burrow	Climb	Swim	Fly	Sprint	Teleport (short)

Roll 1D6 when carousing, docking, or entering a new social space.

Roll	Encounter
1	Rival crew. Same profession, competing for the same job.
2	Informant. Has information for sale. Trustworthiness questionable.
3	Old friend / enemy. Someone from a character's past appears.
4	Official. Bureaucrat, cop, or spy. Wants something: taxes, bribes, cooperation.
5	Criminal contact. Offers illegal work. Dangerous but lucrative.
6	Patron. Someone with money and a problem. The classic adventure hook.

Adventure Design: The 5-Node Mission

Every adventure is a network of 5 nodes, not a linear path. The players choose the order. The nodes are:

Node 1: The Hook

How the players learn about the job.

Direct hire (Patron)
Distress signal
Rumor at the starport
Personal stake (friend in trouble, debt called in)
Discovery (map, artifact, data cache)

Node 2: Investigation

Gathering information before acting.

Interview witnesses
Hack databases
Scout the location
Consult experts
Bribe officials

Key Question: What do the players need to know to succeed? What false leads exist?

Node 3: Complication

The situation is worse than advertised.

Third party involved (rival crew, military, aliens)
The target has moved / changed
Betrayal by employer or ally
Environmental hazard (storm, solar flare, quarantine)
The job is illegal / immoral

Node 4: The Climax

The decisive confrontation.

Heist (break in, steal, escape)
Rescue (infiltrate, extract, evade)
Assault (attack, destroy, secure)
Negotiation (diplomacy, blackmail, deception)
Investigation (solve, prove, expose)

Node 5: The Fallout

Consequences of their choices.

Payment (full, partial, or betrayal)
Reputation (new allies, new enemies)
Legal (warrants, bounties, pardons)
Personal (crew relationships, psychological scars)
Cosmic (what did they unleash?)

Faction Generation

Every world or sector has 3 factions in tension. Roll or choose:

D6	Primary Interest	Secondary Interest
1	Wealth	Control
2	Power	Survival
3	Religion	Expansion
4	Knowledge	Secrecy
5	Security	Freedom
6	Tradition	Innovation

Faction Relationship (roll 1D6 for each pair):

Roll	Relationship
1	At War
2	Cold War
3	Uneasy Alliance
4	Trade Partners
5	Ignorant
6	Subsumed

Faction Strength: Rate each faction 1–6 in:

Force (military, thugs, weapons)
Finance (money, resources, trade)
Influence (political, social, media)
Reach (territory, networks, intelligence)

A faction with 15+ total is dominant. A faction with 6 or less is desperate.

Adventure Seeds

Roll 1D66 or choose:

Roll	Seed
11	A colony ship's AI has gone insane. It thinks the passengers are cargo and the crew are pests.
12	A noble's heir has joined a pirate crew. Retrieve them before the scandal breaks.
13	Anagathics smuggling ring. The drugs are real, but the side effects are worse than advertised.
14	Archaeological dig uncovered a psionic artifact. Now the dig team is murdering each other.
15	A starport customs AI has developed a grudge against your ship. Every arrival is a full inspection.
16
21	A jump drive misjump dropped a ship 200 years in the past. Can they avoid paradox?
22	A world's water supply is poisoned. The corporation that sold the purification system denies fault.
23	A celebrity's brain scan has been stolen. Blackmail, replacement, or resurrection?
24	A prison break in a penal colony. The escapees are political prisoners... or terrorists.
25	A trade route is haunted. Ships disappear. Sensors show nothing. Survivors are catatonic.
26	A robotic servitor world has elected an AI as president. Is it sentient? Is it legal?
31	A bioship—an organic jump-capable creature—has been spotted. Hunt it, study it, or communicate?
32	A feudal world's nobles are using offworld mercenaries in their succession war.
33	A generation ship's descendants have regressed to TL 3. They worship the ship's reactor as a god.
34	A corporate research station has gone silent. The last transmission was screaming.
35	A free port's neutrality is being tested by two warring empires. Choose a side or broker peace.
36	A tomb world's defenses have activated. The archaeological team is trapped inside.
41	A smuggler's cache contains something alive. It's growing.
42	A military outpost has been overrun by its own experimental bioweapons.
43	A psionic institute wants to "recruit" one of your crew. Voluntarily or not.
44	A garden world's ecosystem is artificial. The gardeners are returning.
45	A criminal haven's boss has died. The succession war will burn the port down.
46	A quarantined world holds the cure for a plague spreading through the sector.
51	A nomadic fleet's path intersects with a developing colony. Collision or cooperation?
52	A failed colony's survivors have become cannibals. They don't want to be saved.
53	A religious pilgrimage site is actually a psionic amplifier. The faithful are being harvested.
54	A gladiatorial world's champion is an offworlder who wants to escape.
55	A bureaucratic world's AI has imprisoned everyone for paperwork violations.
56	A xenophobic world has shot down a civilian ship. The passengers are still alive.
61	A seeded world's terraforming is failing. The designers offer a reward for diagnosis.
62	A war zone's mercenaries have stopped fighting. They're waiting for something.
63	A corporate executive has faked their death. They want to hire you to prove it.
64
65	A medical station is experimenting on refugees. The data is valuable. The ethics are not.
66	A rival crew has the same contract. Last one to the objective gets nothing.

Referee's Quick Reference

When to Roll

Task Resolution: Uncertain outcome + meaningful consequence + time pressure.
Random Encounters: Entering new environment, spending time in risky area, or when the table needs energy.
Morale: NPCs lose 50% force or leader.
Reaction: Meeting new NPCs with unclear disposition.

Reaction Rolls (2D6 + SOC DM)

Result	Reaction
2–3	Hostile. Attack or drive off.
4–5	Unfriendly. Refuse cooperation.
6–8	Neutral. Businesslike.
9–10	Friendly. Willing to help for fair price.
11–12	Helpful. Goes out of their way.
13+	Enthusiastic. Allies, discounts, or romance.

Morale Rolls (2D6 + highest Leader skill or INT+SOC DM)

Result	Action
2–5	Rout. Flee or surrender.
6–7	Hesitate. No action this round.
8–9	Hold. Continue fighting.
10+	Rally. +1 DM for 1 round.

Random Complications (1D66)

Roll	Complication
11	The authorities arrive.
12	A fire starts.
13	The lights go out.
14	Someone unexpected is here.
15
16	Equipment fails.
21	Weather / environment worsens.
22	A third party enters.
23	The target is not what it seems.
24	Someone is lying.
25	The map is wrong.
26	Communication is jammed.
31	A trap is sprung.
32	The exit is blocked.
33	Reinforcements arrive (enemy).
34	Reinforcements arrive (ally).
35	A secret door / passage is found.
36	The ceiling / floor gives way.
41	A hostage is taken.
42	Someone switches sides.
43	The payment is fake / insufficient.
44	A disease / poison takes effect.
45	Gravity shifts.
46	Atmosphere begins venting.
51	A computer system locks down.
52	An alarm sounds.
53	A valuable item is destroyed.
54	Someone recognizes the PCs.
55	A prophecy / prediction comes true.
56	The enemy offers terms.
61	A natural disaster begins.
62	A ship / vehicle crashes nearby.
63	The laws change.
64	A faction declares war.
65	A crewmember receives a distress call from family.
66	Roll twice. Both happen.

Example: Generating a World

Rolls:

Starport: 2D6 = 7 → C (Routine)

Size: 2D6−2 = 6 → 6 (9,600km, 0.8g)

Atmosphere: 2D6−7+6 = 7 → 7 (Standard, Tainted)

Hydro: 2D6−7+6 = 5 → 5 (50%, marginal)

Population: 2D6−2 = 5 → 5 (Hundreds of thousands)

Government: 2D6−7+5 = 5 → 5 (Feudal Technocracy)

Law: 2D6−7+5 = 4 → 4 (Light assault weapons banned)

Tech: Modifiers → 8 (Interplanetary)

UWP: C675548-8

Tags: Roll 2D66 = 15 (Corporate State), 23 (Desert World)

Name: Kharon-IV

Description: A desert world with marginal water, ruled by a technocratic nobility descended from the original terraformers. The atmosphere is breathable with a filter mask—without it, the alkaline dust scars the lungs. The corporate state controls all water production; citizens are employees. Offworlders are tolerated at the starport but forbidden from the aquifer complexes without permits. A thriving black market in water purification tech and illegal filter masks operates in the underground slums. The nobles live in climate-controlled arcologies; the workers live in sealed hab-domes. Tension is high. The players arrive with a cargo of "agricultural equipment" that is actually weapons for the resistance.