Fantasy Grounds - Gammadark (AppID: 3618730)

GAMMADARK

A Post-Apocalyptic RPG

Designed by Drew "Jinjeet" Philbrick - Bardic Mischief
Gammadark
is a tabletop roleplaying game set in the devastated world of
After-Earth
, a planet ravaged by a catastrophic event known as
The Darclysm
. This game blends
old-school post-apocalyptic RPG elements
with the
Shadowdark rule system
, offering a
rules-light, fast-paced experience
focused on exploration, survival, and uncovering the remnants of a shattered world.
The Setting: After-Earth

Gammadark takes place in
After-Earth
, a post-apocalyptic world
forged by science, shattered by war, and reshaped by forces beyond comprehension
. A century ago, humanity's technological advancements reached their peak--but an
extraterrestrial invasion
forced humankind to weaponize
dark matter, wormhole technology, and dimensional rifts
in a desperate bid for survival. The result was
The Darclysm
, an apocalyptic catastrophe that
destroyed civilization, mutated all life, and left the planet a fractured wasteland
.


Now, After-Earth is a
chaotic and lawless realm
, where remnants of old-world technology mix with
mutated horrors, sentient machines, and power-hungry factions
. Survivors struggle to endure in a world where
the past is both a treasure trove and a curse
.

Game System: Shadowdark Adaptation

Gammadark runs on the
Shadowdark RPG system
, a streamlined old-school-inspired ruleset designed for
quick play, high-stakes decision-making, and intuitive mechanics
. The system keeps the game focused on
player ingenuity
rather than complex mechanics.

• 
  
  Mutation System
  - Mutations in Gammadark work similarly to
  spells
  in Shadowdark. Players with mutations make
  Mutation Checks
  instead of Spell Checks to activate their abilities.
  
  
  
• 
  
  Ancient Tech System
  - The technology of the old world is classified into
  five tiers
  (Tech I through Tech V), with higher tiers being more dangerous and unpredictable.
  
  
  
• 
  
  Dark Zones & Reality Warping
  - The game world is heavily influenced by
  dark energy, radiation, and dimensional rifts
  , leading to
  unpredictable effects
  that can alter gameplay.
  
  

Radlings, the wasteland calls--do you have the guts to answer?
The Radlands are crawling with mutant warlords, rogue AIs, and tech so powerful it rewrites reality--
only the bold, the desperate, and the truly unhinged will survive!
Grab your scav, charge your blaster, and dive headfirst into the chaos, because in
GAMMADARK
, the only way forward is through fire, fury, and the unknown!



Designed and Written by Drew "Jinjeet" Philbrick

Cover Art by Ivy Fowler

Map Assets by Atryikk Mazenc

All other artwork created using Midjourney AI. "