Issues

• Text doesn't display properly in a comment if there's a substitution

  bug
  UnderminersTeam/UndertaleModTool#2493 · Filter by author avengah opened on Oct 2, 2026

• Generic "read line" function for scripting

  enhancement
  UnderminersTeam/UndertaleModTool#2487 · Filter by author KockaAdmiralac opened on Sep 4, 2026
  3

• Address lack of some GameMaker code definitions (e.g. built-in function arguments, return types)

  decompilerenhancement
  Bug

  UnderminersTeam/UndertaleModTool#2484 · Filter by author VladiStep opened on Sep 1, 2026
  5

• Add an ability to open local function definition using MMB (just like for script functions)

  decompilereditorsenhancementgui
  Feature

  UnderminersTeam/UndertaleModTool#2483 · Filter by author VladiStep opened on Aug 31, 2026
  1

• Game doesn't see object that I added

  bug
  UnderminersTeam/UndertaleModTool#2482 · Filter by author nz134855-ship-it opened on Aug 31, 2026
  2

• Big sprites being cropped if loading from project file

  bug
  UnderminersTeam/UndertaleModTool#2480 · Filter by author Sixle-jpeg opened on Aug 29, 2026

• About the code

  bug
  UnderminersTeam/UndertaleModTool#2479 · Filter by author TheKoise opened on Aug 29, 2026

• The asset references ("Find all references" & "Find unreferenced assets") are not quite ordered

  enhancementgui
  Feature

  UnderminersTeam/UndertaleModTool#2478 · Filter by author VladiStep opened on Aug 29, 2026

• The "Find unreferenced assets" feature is broken for YYC games

  bug
  UnderminersTeam/UndertaleModTool#2477 · Filter by author VladiStep opened on Aug 29, 2026

• The version info of asset availability should be moved to "UndertaleModLib" (from "Find all references" GUI class)

  enhancementguilib
  Feature

  UnderminersTeam/UndertaleModTool#2476 · Filter by author VladiStep opened on Aug 28, 2026

• The color strings from the layer effect properties are ignored by "Find all references" if it's LTS 2022

  buggui
  Bug

  UnderminersTeam/UndertaleModTool#2475 · Filter by author VladiStep opened on Aug 27, 2026

• script compile error

  bug
  UnderminersTeam/UndertaleModTool#2470 · Filter by author aydeniscool opened on Aug 24, 2026

• Could you add an option to change the starting room? (The default first room when launching the game.)

  enhancement
  UnderminersTeam/UndertaleModTool#2469 · Filter by author TheKoise opened on Aug 24, 2026
  2

• Code re-import fails with @@array_get@@ tokens and external function bindings are lost

  bug
  UnderminersTeam/UndertaleModTool#2459 · Filter by author DMorest opened on Aug 13, 2026
  6

• Check hash of original asset before replacing it in a project

  enhancement
  UnderminersTeam/UndertaleModTool#2448 · Filter by author luizzeroxis opened on Aug 2, 2026

• Sprites imported via ImportGraphics.csx cause game to crash!

  bug
  UnderminersTeam/UndertaleModTool#2447 · Filter by author nz134855-ship-it opened on Aug 2, 2026
  2

• Improve Room re-organization so it's not as jank as it currently is

  enhancement
  UnderminersTeam/UndertaleModTool#2446 · Filter by author ThatOneNetBattler opened on Jul 31, 2026

• error when load chinese version of undertale: Undertale v1.001 (Edited by Sxxfgh)

  bug
  UnderminersTeam/UndertaleModTool#2445 · Filter by author womengnan opened on Jul 28, 2026
  5

• Don't run "Publish PR" action if the only change is the scripts

  enhancement
  Feature

  UnderminersTeam/UndertaleModTool#2444 · Filter by author VladiStep opened on Jul 25, 2026

• Add a helper method for clearing a code entry from scripts.

  enhancementlib
  Feature

  UnderminersTeam/UndertaleModTool#2442 · Filter by author VladiStep opened on Jul 23, 2026
  4

• The script "DeltaruneClearShaderData.csx" is not updated (doesn't work)

  bugbuiltin scripts
  Bug

  UnderminersTeam/UndertaleModTool#2441 · Filter by author VladiStep opened on Jul 23, 2026
  1

• Better Font Exporting

  enhancement
  UnderminersTeam/UndertaleModTool#2435 · Filter by author KristianErvik opened on Jul 17, 2026

• Global #macros in projects

  enhancement
  UnderminersTeam/UndertaleModTool#2429 · Filter by author vrad-exe opened on Jul 14, 2026

• Weird font-related behavior?

  bug
  UnderminersTeam/UndertaleModTool#2422 · Filter by author Diskette-Guy opened on Jul 9, 2026

• Issue while importing sounds

  bug
  UnderminersTeam/UndertaleModTool#2419 · Filter by author zcrbla opened on Jul 8, 2026
  3