# Salvage Union System Reference Document (SRD)

> An open-source, searchable reference for the Salvage Union tabletop RPG by Leyline Press.

salvageunion.io is a community-built System Reference Document (SRD) for Salvage Union, a post-apocalyptic mech TTRPG. It provides stats, descriptions, abilities, and rules for game text and mechanics released under the Salvage Union Open Game Licence.

## Content Categories

All game data is organized into browsable categories:

- Abilities (Pilot abilities and skills): https://salvageunion.io/schema/abilities/
- Bio-Titans (Mech-scale biological monsters): https://salvageunion.io/schema/bio-titans/
- Chassis (Mech chassis definitions): https://salvageunion.io/schema/chassis/
- Classes (Pilot Classes (Base and Hybrid)): https://salvageunion.io/schema/classes/
- Crawler Bays (Bays and facilities on Union Crawlers): https://salvageunion.io/schema/crawler-bays/
- Crawler Tech Levels (Tech level progression for Union Crawlers): https://salvageunion.io/schema/crawler-tech-levels/
- Crawlers (Union Crawler mobile bases): https://salvageunion.io/schema/crawlers/
- Creatures (Creatures and wildlife): https://salvageunion.io/schema/creatures/
- Distances (Distance bands and ranges): https://salvageunion.io/schema/distances/
- Drones (Autonomous drones): https://salvageunion.io/schema/drones/
- Equipment (Pilot equipment and gear): https://salvageunion.io/schema/equipment/
- Factions (Faction groups and organizations): https://salvageunion.io/schema/factions/
- Guides (Player-facing guides and processes): https://salvageunion.io/schema/guides/
- Keywords (Game keywords and terminology): https://salvageunion.io/schema/keywords/
- Meld (Meld-infected creatures): https://salvageunion.io/schema/meld/
- Modules (Mech modules): https://salvageunion.io/schema/modules/
- NPCs (Non-player characters and people): https://salvageunion.io/schema/npcs/
- Roll Tables (Random tables and roll tables): https://salvageunion.io/schema/roll-tables/
- Sources (Source books and expansions): https://salvageunion.io/schema/sources/
- Squads (NPC squads and groups): https://salvageunion.io/schema/squads/
- Systems (Mech systems (weapons and utilities)): https://salvageunion.io/schema/systems/
- Tech Levels (Tech level descriptions): https://salvageunion.io/schema/tech-levels/
- Traits (Traits and special properties): https://salvageunion.io/schema/traits/
- Vehicles (Conventional vehicles): https://salvageunion.io/schema/vehicles/

## Licensing

Game text and mechanics are published under the Salvage Union Open Game Licence (OGL 1.0b): https://leyline.press/pages/salvage-union-open-game-licence-1-0b
Artwork is NOT covered by the licence — used with special permission of Leyline Press; do not redistribute.
Republication of licensed text must include the legal notices required by OGL 1.0b.
Salvage Union is created and published by Leyline Press (https://leyline.press).

## Rules Content Map

Rules prose (player-facing guides and processes) lives at: https://salvageunion.io/schema/guides/
Individual guide pages are accessible at: https://salvageunion.io/schema/guides/item/{slug}/
Guide data as JSON: https://salvageunion.io/schema/guides.json
All other schema endpoints contain structured game DATA (stats, abilities, tables, etc.), not narrative rules prose.
Guides are the primary resource for LLM consumers seeking rule explanations and procedures.

## JSON API

salvageunion.io exposes a public JSON API for machine consumption of all game data. CORS is enabled for all endpoints (`Access-Control-Allow-Origin: *`), so requests can be made from any origin.

Base URL: `https://salvageunion.io`

### Endpoints

- `GET /schema/{schemaId}.json` — full data array for a schema (e.g., `/schema/chassis.json`)
- `GET /schema/{schemaId}.schema.json` — JSON Schema definition for a schema (e.g., `/schema/chassis.schema.json`)
- `GET /schema/{schemaId}/item/{itemId}.json` — individual entity by slug (e.g., `/schema/chassis/item/iron-mongrel.json`)

### Available Schema IDs

The following schema IDs can be used in the endpoint patterns above:

- `abilities` — Pilot abilities and skills
- `bio-titans` — Mech-scale biological monsters
- `chassis` — Mech chassis definitions
- `classes` — Pilot Classes (Base and Hybrid)
- `crawler-bays` — Bays and facilities on Union Crawlers
- `crawler-tech-levels` — Tech level progression for Union Crawlers
- `crawlers` — Union Crawler mobile bases
- `creatures` — Creatures and wildlife
- `distances` — Distance bands and ranges
- `drones` — Autonomous drones
- `equipment` — Pilot equipment and gear
- `factions` — Faction groups and organizations
- `guides` — Player-facing guides and processes
- `keywords` — Game keywords and terminology
- `meld` — Meld-infected creatures
- `modules` — Mech modules
- `npcs` — Non-player characters and people
- `roll-tables` — Random tables and roll tables
- `sources` — Source books and expansions
- `squads` — NPC squads and groups
- `systems` — Mech systems (weapons and utilities)
- `tech-levels` — Tech level descriptions
- `traits` — Traits and special properties
- `vehicles` — Conventional vehicles

Full API documentation: https://salvageunion.io/api/

## Other Pages

- About: https://salvageunion.io/about/
- API Reference: https://salvageunion.io/api/
- Sitemap: https://salvageunion.io/sitemap-index.xml