Game Design · Run-and-Gun Shooter

IronVigil: Embers of Rebellion

IronVigil: Embers of Rebellion logo

“They keep a vigil in iron until the empire falls.”

Trailer
The Concept

A lone rebel soldier runs and guns his way through a colossal gothic war-empire, from its ash mines to the throne at the top of its spire.

The name is the rebels' oath: they keep a vigil in iron until the empire falls.

Mobile · Landscape gameplay Run-and-gun Side-scroller Gothic dieselpunk

Design Pillars

Genre Casual side-scrolling run-and-gun shooter. Landscape gameplay, portrait menus and art.
Tone Grim but readable. Monumental and oppressive, with a hot ember of hope. Never gory.
Art direction Stylized, chunky gothic dieselpunk: brutalist monuments, cathedral-factories, giant walkers
Hook Burn the Dominion banner at the end of a level and the district rises up to fight beside you.
The Ascendant Dominion

For a thousand years the Ascendant Dominion has ruled the world of Vharos from the Spire of the Undying, a cathedral-fortress taller than the clouds. At its top sits the God-Chancellor, a ruler kept alive inside a throne of pipes and engines, whose stone face watches from every square.

The Dominion turned cities into cathedral-factories: gothic arches over endless assembly lines, choirs singing over loudspeakers, and walker tanks the size of chapels marching between monuments. Crimson banners with its emblem, the Crowned Iron Eye, hang from every wall.

The Avenue of Monuments, lined with giant statues and crimson banners
Avenue of Monuments
Inside the Foundry Cathedral, under the red rose window of the Iron Eye
Foundry Cathedral
The Hero

Roan Kross, 32, is a former Dominion officer who defected after he was ordered to burn his own home district. Broad-shouldered and rugged, with dark stubble and a scar across one cheek.

His left arm is a heavy dieselpunk prosthetic of riveted iron and pistons, rebuilt from a Dominion walker. He wears scratched heavy armor with the Dominion emblem scraped off and an orange ember painted over it, a long patched coat and an orange scarf, and carries a rotary rifle.

His companion is Wick, a salvaged hovering drone with one warm orange lens, once a Dominion surveillance unit until Roan rewired it.

Roan Kross with his rotary rifle in front of the Spire
Key Art
Roan Kross character sheet with Wick
Roan & Wick
Roan run, jump and shoot sprites
Sprites
Factions
The Ember Cell The rebels: miners, deserters, factory workers and old soldiers in patched coats and mismatched armor, marked with orange paint.
The Ascendant Dominion The empire: masked soldiers in long riveted greatcoats and round gas-mask helmets with glowing red lenses.
The Iron Saints The Dominion's champions: towering knights in ornate heavy armor with gold trim and huge hammers.
The Choir Engines Walking war machines with organ-pipe cannons.
Gas-mask trooper, surveillance drone and Iron Saint
Enemy Lineup
Enemy sprites: gas-mask trooper, surveillance drone, flamethrower trooper, Iron Saint
Enemy Sprites
The Basilica Rex

A colossal spider-like walker with a whole gothic cathedral on its back, a red rose-window eye, gatling and organ-pipe cannons, and crimson banners.

The God-Chancellor leads the final battle from inside it.

The Basilica Rex looming over Roan
Boss Reveal
Basilica Rex idle sprite
Idle
Basilica Rex attack sprite firing its cannons
Attack
The War Map: Outskirts to Capital

Districts turn from crimson Dominion control to orange rebel fire as they are liberated.

  1. 1
    The Ash MinesThe rebel base under the slag heaps.
  2. 2
    Foundry CathedralAn assembly-line cathedral where tanks are built.
  3. 3
    The Avenue of MonumentsA parade road lined with giant statues.
  4. 4
    The Bastion WallsBunkers and searchlights around the capital.
  5. 5
    The Spire of the UndyingThe throne at the top of the world.
Roan raises a torch on a toppled statue
Splash Screen
Core Loop & Interface

A lone rebel soldier runs and guns his way through a colossal gothic war-empire, from its ash mines to the throne at the top of its spire.

1. Run-and-gun 2-3 minute side-scrolling levels with jumping, cover and screen-filling enemy waves.
2. Upgrade Roan's rotary rifle, armor and mechanical arm with salvage.
3. Liberate Districts on a war map, from crimson Dominion control to orange rebel fire.
4. Boss fights Giant walkers and Iron Saints, ending in the Basilica Rex.
Gameplay with muzzle flashes, explosions and a combo counter
Final
Gameplay screen with virtual stick and fire buttons
Gameplay
Rotary rifle upgrade chain
Rifle Upgrades
Pickup icons: ember core, gears, ammo, medkit, grenade, Dominion lens
Pickups
IronVigil app icon with Roan
App Icon
Style Guide

Stylized 2.5D mobile game art with chunky heroic proportions and slightly oversized armor. Cold grey light from above, red lenses and stained glass, warm orange fire, searchlights, smoke and embers.

Oil Black#0F0F11 · Shadows, silhouettes
Gunmetal#2B2D33 · Background, armor
Concrete#6E6B66 · Monuments, fog, smoke
Dominion Crimson#A3191F · Banners, the Iron Eye
Tarnished Gold#B8913A · Ornaments, Iron Saints
Bone Ivory#E3D8BF · Statues, highlights
Ember Orange#FF7A2A · Rebel paint, fire, UI
Spark Yellow#FFC65C · Fire cores, sparks
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