# Compatibility

*Crown Meridian Ship Catalog, Armored Hulls of the Irnan Directorate for Void Drifters. Source: https://exodusnds.com/sourcebooks/crown-meridian/compatibility*

A mechanic can force almost any system into almost any hull. The difficulty depends on the relationship between the builders. This chapter gives Crown's relationships and the modifier for each. The integration table is in the Vehicles Manual, Chapter 5, Builder Integration; installation checks are in Chapter 10, Installing a Module.

## Crown's Relationships

| Maker | Relationship | Status |
|:--|:--|:--|
| Crown Meridian | House | Native |
| Antaean Openframe | Partner | Certified |
| Kharos Forge | Open | Adapted |
| Viridian Lattice | Open | Adapted |
| Safa Celestial Arsenal | Rival | Forced |
| Restricted Directorate military systems | Forbidden | Forbidden |

## Installation Modifiers

Find the relationship, then apply its modifier to the base installation difficulty in the Vehicles Manual, Chapter 10. The same modifier applies to Craft checks to repair that system. Record the status on the ship sheet.

| Relationship | Status | Modifier |
|:--|:--|:--|
| House (Crown system, Crown hull) | Native | None; a clean module installed by a yard needs no check |
| Partner (Openframe) | Certified | Add 1 Bane Die <span class="dice sm bane d6"></span> |
| Open (Kharos, Viridian) | Adapted | Add 2 Bane Dice <span class="dice sm bane d6"></span><span class="dice sm bane d6"></span> |
| Rival (Safa) | Forced | Upgrade 1 Trial Die <span class="dice sm trial d8"></span> to a Crisis Die <span class="dice sm crisis d12"></span> and add 2 Bane Dice |
| Forbidden | Forbidden | Upgrade 1 or 2 Trial Dice to Crisis Dice (GM's choice by severity) and add 2 Bane Dice |

A system installed damaged, rebuilt past its specification, or heavily modified is recorded as Forced whatever its relationship, and uses the Rival modifier. When a Crown system goes into a hull whose builder has a Weak drawback that adds Bane Dice to installation (Viridian, Kharos for AI systems, Safa), those dice add on top.

An imperfect installation can leave a lasting defect, a **failure mode**. When one applies, use the Mixed-Builder Failure Modes table for Partner, Open and Rival installations and the Military Failure Modes table for Military components: Vehicles Manual, Chapter 10, Mixed-Builder and Military Failure Modes.

## Mixed Ships

**Crown systems in other hulls.** A Crown system keeps its Signature benefit in an Openframe hull, because Openframe is Crown's Partner. In a Kharos, Viridian or Safa hull it works as a Standard system, with no benefit and no penalty. A Crown ship that takes in enough foreign systems to lose Integrated Architecture loses Crown's once-per-encounter cascade protection with it (Chapter 4).

**Other systems in Crown hulls.** A Kharos engine in a Crown hull works as a Standard system: Kharos and Crown are Open, not Partners, so it does not bring Kharos's Signature benefit. An Openframe system in a Crown hull keeps its Openframe benefit. The Crown benefits of the systems still native stay, and Crown's Weak drawbacks stay with the hull.

**Safa.** Crown and Safa are rivals. A Safa reactor or fire control suite in a Crown hull is a Forced integration and works as a Standard system. Persistent Bane, Collateral Downgrade and Firmware Conflict are the likely failure modes.

**Directorate military systems.** Restricted Directorate hardware is Forbidden aboard a civilian Crown hull. A Crown ship carrying it without certification loses its low authority heat at once.

## Which Maker for the Hole in the Fleet

| If the crew needs | Look at |
|:--|:--|
| A freighter that carries and converts | Openframe, Crown's Partner |
| A ship that thinks and reads its own damage | Viridian |
| A hull that is easy to patch in the field | Kharos |
| A hull that outruns and outshoots | Safa, at a price in integration |