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id suds
name SUDS (Steve's Unreal Dialogue System)
url https://github.com/sinbad/SUDS
category tools
subcategories
unreal
dialogue
license MIT
license_spdx MIT
commercial true
attribution_required false
formats
unreal-plugin
C++
tags
unreal-engine
dialogue
branching-dialogue
scripting
localization
blueprint
added 2026-10-13
verified 2026-10-13
status active
publisher Steve Streeting

SUDS (Steve's Unreal Dialogue System)

Dialogue plugin for Unreal Engine 5 where conversations are written as plain-text scripts rather than drawn as graphs. Scripts cover speaker lines, player choices, goto and gosub, conditional branches, random lines, persistent variables and events sent back to C++ or Blueprints, and import as assets with localisation support. MIT licensed, so it can ship inside a closed commercial game.

Notes

  • Text-script workflow inspired by Ink and Yarn Spinner, per the README; suits writers who prefer a text editor to a node graph, and a VSCode extension provides syntax highlighting
  • Includes an in-editor testing tool for running a script without playing the game
  • Install by cloning the repository (git submodule) or unzipping it into YourProject/Plugins/SUDS; it builds from source, so the project needs C++ enabled
  • SUDS Pro on Fab is a separate paid add-on with prebuilt binaries and camera, cutscene and animation integration; the README says core SUDS is "a perfectly capable dialogue engine on its own", and this entry covers only the free MIT repository
  • Engine support: the README says "Unreal Engine 5" without naming minor versions, and the .uplugin has no EngineVersion key, so no ue_versions is recorded
  • Compared with DlgSystem and Mountea Dialogue System, which are graph editors, SUDS is the text-first option; it integrates with SPUD for saving dialogue variable state
  • MIT is compatible with the Unreal Engine EULA, which forbids combining engine code with copyleft licences such as GPL, LGPL and CC-BY-SA; keep the copyright notice in your third-party credits
  • Maintenance: GitHub API (2026-10-13) reports the repository not archived, last push 2026-06-19

Evidence

  • License.txt in the repository, master branch (2026-10-13): "The MIT License (MIT) Copyright © 2022 Steve Streeting"
  • Same file (2026-10-13): "to deal in the Software without restriction"

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