Mortar 0.3.9 · October 19, 2026

Errors explained, builds auto-install

Errors name the method that threw and the mods patching it, and your mod's builds install themselves.

Errors explained
Problems Errors explained The method that threw, and the other mods patching it.
Auto-install folders
Downloads Auto-install folders Each build of your mod lands in the open profile.
A lighter interface
Interface A lighter interface Mods and Config do far less work as you switch.

What changed in 0.3.9

New

Problems and diagnostics

  • An error a mod hit while running names the method it was thrown in and the other mods that patch code on that path
  • Errors from a run that went on are listed once under Errors while running, apart from mods that failed to load, and are not counted as problems
  • A File conflicts tab naming the files one package wins from another, with Make … win
  • A mod whose manifest is missing or broken shows as Damaged, with Repair
  • A warning when a mod's path is too long for a Windows game
  • The files a sync replaced, with Restore and Delete all
  • Last run rows, deprecated mods and compatibility-list rows can be dismissed
  • The console shows an error repeated over and over once, with a ×N count

Mods and browsing

  • One card for a mod its author lists on several sites, with re-uploads marked
  • A folder set to Auto-install puts its contents into the open profile each time they change, for a mod's build output
  • The first download from GitHub or itch.io says once that nobody moderates the site, and so does importing a profile with such mods
  • Make a group, or Add to group, brings along the mods the chosen ones need
  • Implicit mods nest under the mod that needs them, folded into a +N libraries chip on cards
  • Category pickers show +N for chips that do not fit, and noisy categories start excluded
  • Each game keeps its own include, exclude and sort; Browse sorts by most downloaded by default
  • A long config file lists its sections down the right, and an option centres each setting's control

Games

  • 43 more Thunderstore games on loaders Mortar drives
  • A game no store tracks takes the folder you choose; Voices of the Void on Shimloader
  • Game Select sections fold away, and Hide this game moves to the row's right-click menu
  • The game switcher shows each game's art, profile count and when it was last played

Profiles and launching

  • The Play menu holds Instances and Delay, with Launch all copies; on a store launch it offers Direct launch
  • New profile can start from a saved group
  • Restore from a file sits beside Back up in the profile menu
  • Saves open as cards
  • Favourite stars and source marks sit on each mod's picture

Changed (2)

  • Stacklands, Core Keeper and Wrestling Empire leave the catalog: their Thunderstore pages send modders to the Steam Workshop or mod.io
  • Game Select rows keep one height; the hover grow and its setting are gone

Fixed (12)

  • Add to group from a mod's menu opens its dialog and takes every selected mod
  • Use Direct launch in the Play menu takes effect at once
  • A save only stops a launch for the mods it names, and Play anyway stops asking about them
  • Before you play counts missing mods once and fits its actions on one row
  • Lethal Company plugins that loaded and then logged errors are no longer reported as failing to load
  • The crash search keeps a library on while a mod that needs it is on, and first checks the crash happens at all
  • Importing profiles from other managers opens the game on the first one, and does not import the same profile twice
  • Opening a config file while another mod's config still loads no longer leaves the pane empty
  • The Mods and Config tabs do much less work when you switch a mod or pick a file
  • A save is not backed up twice in the same moment
  • The tray shows Mortar instead of Wails
  • Profile names over bright cover art stay readable

Downloads and checksums for 0.3.9 · Every release