Iron reboot

Update 1: player and scene created, issues with textures but it's a start. 

IRON REBOOT

Last of the Iron Legionnaires

Genre: Roguelite FPS

Engine: Godot (3D world with 2D pixel sprites)

Inspiration: Doom, Wolfenstein, Edge of Tomorrow

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Game Design Document

Jam Stage 1 / Task 1 – GDKO 2026

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What is this game?

Iron Reboot is a retro sci-fi shooter where an elite Marine is trapped aboard a crashed alien ship. Death resets the run, but earned currency permanently upgrades gear — each attempt making the player stronger, smarter, and more specialised.

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Core Idea

Instead of choosing a class, the player’s role emerges entirely from the gear they equip.

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Core Loop

• Wake up in the crashed ship

• Explore corridors and rooms

• Fight alien enemies

• Collect credits

• Die

• Spend retained credits on upgrades

• Reboot and push further next run

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Customisation & Progression

Player customisation is the core mechanic. The Marine can equip five slots: Helmet, Body Armour, Boots, Primary Weapon (left mouse), and Off-Hand utility. Each slot has four upgrade tiers, and every upgrade includes a meaningful benefit and a drawback — no option is strictly better. All progression comes from gear; there are no XP levels or skill trees.

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Player Stats (All Used In-Game)

Health, Damage Reduction, Weapon Damage, Recoil, Accuracy / Spread, Magazine Size, Reload Speed, Move Speed, Jump Height, Noise (enemy detection), and Stamina.

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Combat

Fast, readable gunplay focused on recoil control, ammo management, movement, and positioning. Enemies react to sound and visibility, rewarding smart movement as much as raw damage.

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Death & Progression

Each run uses permadeath, but credits persist between runs. Gear upgrades are permanent, and the player selects their loadout before each attempt, creating an Edge-of-Tomorrow style loop of death, learning, and improvement.

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Visual & Audio Style

Classic Doom-style 2D pixel sprites rendered in a 3D environment. Dark industrial sci-fi visuals with strong lighting contrast, heavy weapon sound effects, ambient ship noises, and minimal music to build tension.

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Scope & Intent

The project is intentionally scoped to one protagonist, one primary weapon type, a single environment theme, and a limited upgrade pool to ensure completion within the jam while clearly demonstrating system depth and future expansion potential.