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projects:odds_rpg:playtest:echoes_below

Play Test Module

Echoes Below

A short ODDS RPG playtest adventure.

Genre: Space Adventure Theme: Exploration, tension, tactical combat Length: 1–2 sessions

Players investigate a derelict underground research facility on a remote colony world.


Adventure Hook

A mining outpost on planet Kestrel-9 has gone silent.

Orbital scans show power fluctuations beneath the surface.

The corporation (or patron) hires the party to:

  • Investigate the underground lab
  • Recover research data
  • Retrieve valuable prototype tech
  • Determine what happened

Reward:

Wealth increase OR 500 credits equivalent
Plus salvage rights

Planet Overview

Kestrel-9 is:

  • Thin atmosphere
  • Jagged rock formations
  • Frequent electrical storms
  • Low-level seismic instability

Surface threats:

  • Electrical storm bursts
  • Unstable rock shelves
  • Abandoned mining drones

Access to the lab is through a collapsed mining tunnel.


Lab Overview

The underground facility consists of:

1. Entry Tunnel 2. Security Checkpoint 3. Research Wing 4. Containment Block 5. Power Core Chamber

The lab was researching alien bio-tech discovered during mining operations.

Something escaped containment.


Area 1 – Entry Tunnel

Dim emergency lighting. Scorch marks on walls. Discarded mining equipment.

Challenge:

Clear debris (TN 12 Might)
OR bypass through side shaft (TN 15 Agility)

Failure:

Minor collapse – 2d10 damage (Agility TN 12 halves)

Clue:

Log tablet mentions “Subject Gamma breach.”

Area 2 – Security Checkpoint

Blast doors partially sealed.

Options:

Hack control panel (Extended Task Goal 3)
Force doors (TN 18 Might)
Cut power reroute (TN 15 Engineering)

Random Event (roll 1d6):

1–2 Motion sensors activate automated turret
3–4 Nothing happens
5–6 Strange movement in vents

Automated Turret (Standard)

Health 14 Attack +5 Damage 2d10+1 Defense TN 13 Armor 1 Ability: Suppressive Fire (-2 to next attack roll if hit)


Area 3 – Research Wing

Broken glass. Containment pods shattered. Bio-fluid stains.

Encounter (choose one):

Alien Parasite (Elite)

Health 22 Attack +7 Damage 2d10+2 Defense TN 14 Armor 2 Abilities: Regenerate, Terrify

OR

Corporate Retrieval Team (2 Standards)

Health 14 each Attack +5 Damage 2d10+1 Defense TN 13 Armor 1 Ability: Coordinated (+2 when adjacent)

Loot:

Prototype energy weapon (2d10+2, ignores 1 Armor)
Research data core (valuable)

Area 4 – Containment Block

Cold. Lights flicker. Containment chamber breached from inside.

Environmental hazard:

Radiation leak (TN 15 Might or lose 2d10 Resolve)

Inside:

Evidence of forced extraction.
Something large was moved.

Clue:

Power readings spike below.

Area 5 – Power Core Chamber

Massive generator hum. Alien organic structure fused with reactor.

Boss Encounter:

Hybrid Entity (Boss)

Health 38 Attack +9 Damage 2d10+3 Defense TN 15 Armor 3 Abilities:

Regenerate (5 per round)
Terrify (1/scene)
Cleave

Phase at 50%:

Reactor destabilizes (everyone rolls TN 15 Agility or take 2d10)

Victory Options:

  • Destroy creature
  • Shut down reactor (Extended Task Goal 5 during combat)
  • Seal chamber and escape

Random Encounters (Optional During Exploration)

Roll 1d6 between areas:

1 Seismic tremor – debris fall (TN 12 Agility) 2 Drone reactivates (Minion stats) 3 Strange whisper over comms (Resolve TN 12) 4 Environmental fire burst 5 Rival scavenger team arrives 6 Nothing… but something watches


Rewards

Major Success:

Wealth +1 (temporary or permanent)
Unique tech asset
Faction reputation boost

Partial Success:

Data recovered
Creature escaped

Failure:

Facility collapses
Creature reaches surface colony

Expansion Hooks

The alien organism was not native. Coordinates found in data logs. Corporate cover-up begins. Rival faction wants the tech.

This lab was only one of many.

projects/odds_rpg/playtest/echoes_below.txt · Last modified: by freedomotter

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