Game Not Found: Cyberpunk 2077 (Heroic Games Launcher (GOG)/Linux)

[AeliusRuivus]

🕹️ Game Not Found

Game Name: Cyberpunk 2077
Operating System: Linux Arch 6.18.1
Game Store: Heroic Games Launcher (GOG)

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Log Files

############ Nexus Mods App log file - 2026-01-04 21:45:32.1724 ############
00:00:00.000 [INFO] (NexusMods.MnemonicDB.Storage.DatomStore) Bootstrapping the datom store, existing state found, last tx: 100000000000029
00:00:00.509 [INFO] (NexusMods.Backend.Process.ProcessRunner) Using process log folder at /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs
00:00:00.570 [DEBUG] (NexusMods.SingleProcess.SyncFile) Using Sync File: /run/user/1000/NexusMods.App-sync_file.sync
00:00:00.574 [DEBUG] (NexusMods.SingleProcess.SyncFile) Sync file contents: 37245, 51322
00:00:00.584 [DEBUG] (NexusMods.Networking.NexusWebApi.Auth.OAuth2MessageFactory) Refreshing expired OAuth token
00:00:00.757 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Directory at /home/aelius/.local/share/Steam isn't a valid steam installation because the directory doesn't exist
00:00:00.760 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Directory at /home/aelius/.steam/debian-installation isn't a valid steam installation because the directory doesn't exist
00:00:00.760 [INFO] (GameFinder.StoreHandlers.Steam.SteamHandler) Found Steam at the default installation path /home/aelius/.var/app/com.valvesoftware.Steam/data/Steam
00:00:00.796 [INFO] (GameFinder.StoreHandlers.Steam.SteamHandler) Found 1 library folders in the library folders file /home/aelius/.var/app/com.valvesoftware.Steam/data/Steam/config/libraryfolders.vdf
00:00:00.796 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing library folder /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam
00:00:00.796 [INFO] (GameFinder.StoreHandlers.Steam.SteamHandler) Found 6 app manifest files in library folder /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam
00:00:00.796 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_1493710.acf
00:00:00.817 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_1628350.acf
00:00:00.818 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_7760.acf
00:00:00.819 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_2180100.acf
00:00:00.819 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_228980.acf
00:00:00.822 [DEBUG] (GameFinder.StoreHandlers.Steam.SteamHandler) Testing app manifest file /home/aelius/.var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/appmanifest_489830.acf
00:00:00.832 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 1493710, Proton Experimental
00:00:00.837 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 128342678764870633
00:00:00.837 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 1628350, Steam Linux Runtime 3.0 (sniper)
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 2569492142087602988
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 7760, X-COM: UFO Defense
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 9064227437018934890
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 2180100, Proton Hotfix
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 744769095310280954
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 228980, Steamworks Common Redistributables
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 2547553897526095397
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 8782296191957114623
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 1829726630299308803
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 5220958916987797232
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) Found Steam Game: 489830, The Elder Scrolls V: Skyrim Special Edition
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 8442952117333549665
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 8042843504692938467
00:00:00.838 [INFO] (NexusMods.StandardGameLocators.SteamLocator) - ID: 1914580699073641964
00:00:00.854 [ERROR] (NexusMods.StandardGameLocators.AWineGameLocator) While looking for a Wine prefix: Unable to find any bottles installation.
00:00:00.979 [INFO] (NexusMods.Backend.RuntimeDependency.RuntimeDependencyChecker) xdg-settings: RuntimeDependencyInformation { RawVersion = 1.2.1, Version = 1.2.1 }
00:00:00.983 [INFO] (NexusMods.Backend.OS.LinuxInterop) Using applications directory /home/aelius/.local/share/applications
00:00:00.983 [INFO] (NexusMods.Backend.OS.LinuxInterop) Moving existing desktop file from /home/aelius/.local/share/applications/com.nexusmods.app.desktop to /home/aelius/.local/share/applications/com.nexusmods.app.desktop.bak
00:00:00.983 [INFO] (NexusMods.Backend.OS.LinuxInterop) Creating desktop file at /home/aelius/.local/share/applications/com.nexusmods.app.desktop
00:00:00.993 [INFO] (NexusMods.Backend.RuntimeDependency.RuntimeDependencyChecker) update-desktop-database: RuntimeDependencyInformation { RawVersion = 0.28, Version = 0.28 }
00:00:00.999 [INFO] (NexusMods.Backend.OS.LinuxInterop) Updating MIME cache database
00:00:00.999 [INFO] (NexusMods.Backend.Process.ProcessRunner) Setup process logs /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/update-desktop-database-9c68e34c-e363-4615-9d32-d2e6146588ff.stdout.log and /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/update-desktop-database-9c68e34c-e363-4615-9d32-d2e6146588ff.stderr.log
00:00:00.999 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Starting command update-desktop-database "/home/aelius/.local/share/applications"
00:00:01.004 [INFO] (NexusMods.Games.FileHashes.FileHashesService) Opening hash database at /home/aelius/.local/share/NexusMods.App/FileHashesDatabase/913dc806-7592-4918-8ce5-14e7fc348989_1763372490 for 11/17/2025 09:41:30 +00:00
00:00:01.005 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Command update-desktop-database "/home/aelius/.local/share/applications" finished after 0.0019444 seconds with exit Code 0
00:00:01.005 [INFO] (NexusMods.Backend.Process.ProcessRunner) Setup process logs /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/xdg-settings-d3e019ea-1ac4-4c37-9561-341aeac73264.stdout.log and /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/xdg-settings-d3e019ea-1ac4-4c37-9561-341aeac73264.stderr.log
00:00:01.005 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Starting command xdg-settings set default-url-scheme-handler nxm com.nexusmods.app.desktop
00:00:01.009 [INFO] (NexusMods.MnemonicDB.Storage.DatomStore) Bootstrapping the datom store, existing state found, last tx: 100000000000007
00:00:01.016 [WARN] (NexusMods.Backend.RuntimeDependency.RuntimeDependencyChecker) Protontricks: couldn't query information
00:00:01.384 [INFO] (NexusMods.Networking.NexusWebApi.NexusApiClient) Nexus API call finished: 0.036722 - Remaining Limit: 0
00:00:01.642 [INFO] (NexusMods.Backend.Process.ProcessRunner) Setup process logs /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/df-33d87e29-8e2c-4b70-b21d-13c969d28e74.stdout.log and /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/df-33d87e29-8e2c-4b70-b21d-13c969d28e74.stderr.log
00:00:01.642 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Starting command df /home/aelius/.local/share/NexusMods.App/DataModel/Archives --output=source
00:00:01.647 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Command df /home/aelius/.local/share/NexusMods.App/DataModel/Archives --output=source finished after 0.0007366 seconds with exit Code 0
00:00:01.648 [INFO] (NexusMods.DataModel.SchemaVersions.MigrationService) Ran 0 migration(s) in 0.0017809 seconds
00:00:01.648 [INFO] (NexusMods.Backend.Process.ProcessRunner) Setup process logs /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/df-ee2a5cd8-3c37-4e37-9257-741ea4e3f871.stdout.log and /home/aelius/.local/state/NexusMods.App/Logs/ProcessLogs/df-ee2a5cd8-3c37-4e37-9257-741ea4e3f871.stderr.log
00:00:01.648 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Starting command df --local --output=source,fstype,size,avail,target --block-size=1K --exclude-type=tmpfs --exclude-type=devtmpfs --exclude-type=vfat --exclude-type=efivarfs
00:00:01.649 [INFO] (NexusMods.SingleProcess.CliServer) Started TCP listener on port 37511
00:00:01.652 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Command df --local --output=source,fstype,size,avail,target --block-size=1K --exclude-type=tmpfs --exclude-type=devtmpfs --exclude-type=vfat --exclude-type=efivarfs finished after 0.0019691 seconds with exit Code 0
00:00:01.654 [INFO] (NexusMods.App.Program) Operating System is Arch Linux running .NET 9.0.11 with installation method AppImage
00:00:01.654 [INFO] (NexusMods.App.Program) Main process started as 62740 - /tmp/.mount_NexusM97I7fc/usr/bin/NexusMods.App []
00:00:01.655 [INFO] (NexusMods.App.Startup) Version: 0.21.1.0 Commit: 96cc724 Build Date: 11/17/2025 09:41:30 +00:00
00:00:01.659 [INFO] (NexusMods.App.Program) Archives are stored at /home/aelius/.local/share/NexusMods.App/DataModel/Archives on mount FileSystemMount { Source = /dev/nvme0n1p5, Target = /, Type = btrfs, BytesTotal = 1.004 TB, BytesAvailable = 653.334 GB, BytesUsed = 374.852 GB }
00:00:02.277 [INFO] (NexusMods.App.App) Using UI Culture en-IE
00:00:02.563 [DEBUG] (NexusMods.Networking.GitHub.GitHubApi) Fetching releases from https://api.github.com/repos/Nexus-Mods/NexusMods.App/releases
00:00:02.824 [INFO] (NexusMods.Networking.NexusWebApi.V1Interop.LocalMappingCache) Loaded local mapping cache data with 4115 entries
00:00:03.048 [DEBUG] (NexusMods.Networking.GitHub.GitHubApi) Fetched 30 release(s) from GitHub for Nexus-Mods/NexusMods.App
00:00:03.049 [DEBUG] (NexusMods.Networking.GitHub.GitHubApi) Latest release from GitHub for Nexus-Mods/NexusMods.App is 0.21.1
00:00:03.050 [INFO] (NexusMods.App.UI.Overlays.Updater.UpdateChecker) Latest version on GitHub 0.21.1 is older or the same as current 0.21.1.0
00:00:03.385 [WARN] (ReactiveUI.POCOObservableForProperty) The class ReactiveUI.ReactiveCommand2[[System.Reactive.Unit, System.Reactive, Version=6.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263],[NexusMods.App.UI.WorkspaceSystem.PanelId, NexusMods.App.UI, Version=0.21.1.0, Culture=neutral, PublicKeyToken=null]] property CanExecute is a POCO type and won't send change notifications, WhenAny will only return a single value! 00:00:03.388 [WARN] (ReactiveUI.POCOObservableForProperty) The class ReactiveUI.ReactiveCommand2[[System.Reactive.Unit, System.Reactive, Version=6.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263],[System.Reactive.Unit, System.Reactive, Version=6.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263]] property CanExecute is a POCO type and won't send change notifications, WhenAny will only return a single value!
00:00:05.470 [DEBUG] (NexusMods.Backend.Process.ProcessRunner) Command xdg-settings set default-url-scheme-handler nxm com.nexusmods.app.desktop finished after 4.463276 seconds with exit Code 0
00:00:12.276 [INFO] (NexusMods.Networking.NexusWebApi.NexusApiClient) Nexus API call finished: 0.032978 - Remaining Limit: 0
00:01:30.250 [INFO] (NexusMods.Networking.NexusWebApi.NexusApiClient) Nexus API call finished: 0.108453 - Remaining Limit: 0
00:01:35.303 [WARN] (ReactiveUI.POCOObservableForProperty) The class NexusMods.Sdk.Settings.PropertyConfig property Options is a POCO type and won't send change notifications, WhenAny will only return a single value!
00:01:35.303 [WARN] (ReactiveUI.POCOObservableForProperty) The class NexusMods.Sdk.Settings.PropertyOptionsWrapper property RequiresRestart is a POCO type and won't send change notifications, WhenAny will only return a single value!
00:05:12.845 [INFO] (NexusMods.Networking.NexusWebApi.NexusApiClient) Nexus API call finished: 0.053133 - Remaining Limit: 0
00:05:48.892 [INFO] (NexusMods.Networking.NexusWebApi.NexusApiClient) Nexus API call finished: 0.046022 - Remaining Limit: 0

[AeliusRuivus]

Hi there anyone reading this, I was able to pinpoint the issue in my case with help from ChatGPT (please don't judge me) - Heroic isn't adding an entry to ~/.config/heroic/gog_store/installed.json.
After cutting through some hallucinations, the AI found this forum entry:
https://forums.nexusmods.com/topic/13503127-games-from-heroic-games-launcher-not-recognized/
And from there I was able to recover what the Cyberpunk entry should look like. Here's what I pasted on the JSON:

{ "platform": "windows", "executable": "", "install_path": "/home/[my_user]/Games/Heroic/Cyberpunk 2077", "install_size": "84.98 GiB", "is_dlc": false, "version": "2.31a", "appName": "1423049311", "installedDLCs": [ "1256837418", "1597316373" ], "language": "en-US", "versionEtag": "\"0bbeba1780e93851edf083a9fa85bb75\"", "buildId": "57913121226133752", "pinnedVersion": false, "cyberpunk": { "modsEnabled": false, "modsToLoad": [] } }
[my_user] is, of course, the name of my user profile :-)
I haven't tested the rest yet, just wanted to document this here in case anyone else needs it.