Mortar 0.3.1 · October 15, 2026
46 more games, and The Sims 4
BepInEx games from Thunderstore, The Sims 4 with its own Mods folder per profile, and games from the EA App.
What changed in 0.3.1
New
Games
- 46 more games modded through BepInEx and Thunderstore, among them R.E.P.O., Risk of Rain 2, PEAK, Content Warning, Inscryption, Cult of the Lamb, Sun Haven and Enter the Gungeon; 14 of them also browse Nexus Mods
- The Sims 4: each profile has its own Mods, saves and game options, Tray files go to the game's library, and mods come from CurseForge, Nexus Mods, GitHub, Patreon posts and itch.io pages
- Games installed through the EA App are found and started
- The Sims 4: Import from the game's Mods folder reads the mods already in Documents › Electronic Arts › The Sims 4 › Mods, at first set-up and from the Import menu, switched-off files included, and can move them out of that folder
Mods and browsing
- Paste a Patreon post or an itch.io page in Add mod: it opens in your browser, and the file you save from it is offered and recorded under that page
- Review the mods in the game's own Mods folder against a profile and bring them in
- Typing in the mod list jumps to a mod the way Game select does: punctuation is ignored and digits count
- Find on Nexus: mods imported from another manager or a folder with no page get their Nexus page and file back, from the Source grouping of the Mods list; Set Nexus page… in a mod's menu names the page by hand
- CurseForge's Install button can open Mortar: turn on Handle CurseForge links in Settings › Downloads; links for games Mortar does not manage go back to the CurseForge app
Profiles and sharing
- Merge one profile into another, as one step you can undo
- Scheduled save backups, the run log, the console, conflicts and requirements can be set per profile
- A profile can keep its own copy of the game's options file
- Share › Mod list saves the list to a text file, and Multiplayer mod list loads a host's list from one
Launching and loaders
- Play asks which graphics API to use for games that offer more than one, and asks again after a start that fails under another
- The game's caches are cleared on the first start after a profile's mods change
Problems and diagnostics
- Problems lists game settings your mods need switched on, and a Redundant finding can be dismissed and restored
Interface and settings
- Game select is one alphabetical list with your recently played games on top, a letter rail to jump with, and typing a name finds it
- The Windows installer offers to open Nexus and Thunderstore links with Mortar, and Mortar offers to take them back when another app claims them
- Settings › About shows the build, and Open log folder finds the log
- Join our Discord from the app menu, the Welcome screen and the site
Fixed (21)
Launching and loaders
- Windows: SMAPI starts when Steam's launch options do not name it, a hidden SMAPI no longer hides the game window, Stop ends the whole game, and no console windows flash when Settings opens
- A game set up from a folder you chose, or found through another launcher, starts directly instead of being handed to Steam, and on Linux a Windows-only game outside Steam or Bottles says why it cannot start
Mods and browsing
- A Thunderstore update is found by the package's id, so a namesake cannot hide it, and other mod managers are left out of search and installs
- The stored Thunderstore listing takes about a quarter of the disk space, loads twice as fast, and leaves memory after ten idle minutes
- A space typed inside a mod's name no longer switches the focused mod off
- A config file no mod owns opens alone instead of beside a second list
- An itch.io key is accepted
- A mod whose page is not known shows Unknown source instead of Nexus Mods
- Installing an archive over a mod from a site keeps its page, picture and update checks instead of turning it into a plain Archive
Profiles and sharing
- Windows: LAN sharing never listens on a network set to Public, and its firewall rules cover every network type so Windows does not prompt
- Importing from Vortex reads mods it deployed as links
- Multiplayer mod list: Check reads the text Share › Mod list makes, in all three formats
- Share › Mod list names a mod once when several parts of one download share its name and version
- Edit profile no longer scrolls sideways, and a long game list no longer widens the page
Downloads and updates
- A second Install waits for the running download instead of failing
- Changing mods no longer puts off the update check
- A crafted archive or image can no longer make Mortar run out of memory
- Review updates lists an update from another site that Mortar cannot download itself, instead of counting it and showing nothing
- A CurseForge Install link for a mod whose author only allows downloads from its page is refused by name with what to do, instead of failing in the queue
Interface and settings
- Closing the window quits when Mortar is not kept in the tray, and the tray's Quit works with the window closed
- Tooltips, the reasons a control is off and an update's requirement changes are reachable by keyboard, and the sidebar is one tab stop walked with the arrow keys