Mods & Workshop

Introduction

Modding is confirmed for Professional Ship Simulator but deliberately not present at Early Access launch. The developers have stated that Workshop support, custom ships, scenarios, scenery extensions and harbour editing are planned to arrive shortly after release, with scenery work built on Unreal Engine tooling. For a simulation whose map system is explicitly designed to be tile-based and moddable, this is the natural direction: the base game gives you two regions and nine ship classes, and the modding layer is what turns that into a platform. This section covers what each modding category is expected to involve — subscriber-side Workshop browsing, custom vessel models with their own systems and handling, the built-in scenario editor, scenery and landscape alteration, harbour design, and audio and flag replacement — along with what is actually available today, which at the time of writing is nothing yet.

Modding Categories

Modding Overview

Core Mechanics

The modding plan follows a familiar two-sided model. On the consumption side, Steam Workshop integration handles browsing and subscribing, so installing a community ship or scenario is meant to be a single click. On the creation side, the developers have described built-in editors rather than requiring external toolchains for most tasks: a scenario editor for missions, harbour editor tools for dock layouts, and configuration for custom vessels. Scenery is the exception, where Unreal Engine tooling is expected because landscape alteration needs engine-level access. Audio and flag replacement sits alongside these as the lighter-weight personalisation layer, letting you change sounds and fly your own flag without touching geometry or scripting.

Advantages

The clearest advantage is longevity. A simulation with two regions and nine hulls is finite, and modding is what converts it into something with a much longer shelf life, which is particularly valuable for a game entering Early Access with an explicitly incremental content plan. Because the map system is already tile-based, scenery additions should slot into the existing structure rather than fighting it. The scenario editor also has obvious value even for players who never publish anything, since it lets you build exactly the practice situation you need — a beam-wind berthing in a specific harbour, for instance — without waiting for the developers to provide it.

Challenges

The dominant drawback right now is simply that none of it is available. Modding is confirmed and planned, not shipped, and no firm date has been given beyond the phrase soon after launch. For a player buying today, the honest position is that you are buying the base simulation and hoping the modding plan arrives as described. Scenery modding built on Unreal tooling also implies a meaningful learning curve for anyone who has not worked with the engine, and Workshop content quality is always variable, so a curated approach is more useful than subscribing to everything. The practical position is to buy the simulation as it exists today and treat modding as upside rather than as the reason for buying.

Frequently Asked Questions

Quick Tips