Mod Creation/Enabling DevTools for the Steam and Epic Clients

For mod developers, it may be beneficial to enable DevTools within the Steam or Epic client. This can be achieved by following the process detailed below. This is a one off operation and does not need to be repeated, that is unless the Steam or Epic client is uninstalled or reinstalled.

Enabling DevTools for Steam

1. Download Melvor Idle on Steam, and find the installation folder. e.g. [...]/steamapps/common/Melvor Idle
   • Not sure where it's installed? Go to Melvor Idle in your Steam library, right click, and go to Manage → Browse local files.
2. Download the NW.js SDK (Windows: v0.71.1; other OS: v0.49.2). The version might change in the future, but you need the specific one listed.
   • 64bit Windows: https://dl.nwjs.io/v0.71.1/nwjs-sdk-v0.71.1-win-x64.zip
   • 64bit Linux: https://dl.nwjs.io/v0.49.2/nwjs-sdk-v0.49.2-linux-x64.tar.gz
   • Other: https://dl.nwjs.io/
3. Extract all zipped files.
4. Place the contents of the nwjs-sdk* folder in the Melvor Idle installation folder.
   • The current contents of the nwjs-sdk-v0.71.1-win-x64 folder has 22 total items. Moving this to the Melvor Idle folder will overwrite over 100 existing files.
   • If it didn't ask you to overwrite any files then you did something wrong.
5. Place the icons, styles, and source directories (i.e. scripts or sources) of the extracted extensions in the Melvor Idle installation folder.

Enabling DevTools for Epic

1. Download Melvor Idle on Epic, and find the installation folder. e.g. [...]/Program Files/Epic Games/MelvorIdleXLcGb
   • Not sure where it's installed? Open the Epic Launcher and navigate to the Library then right click Melvor Idle and 'Manage'. Click the folder icon in Installation.
2. Open package.nw and then package.json. Inside package.json, remove --devtools-flags=disable from "chromium-args": and save the changes.

Modding Guides
Getting Started	Creator Toolkit	Migrating from Scripts and Extensions	Essentials	Mod Context API Reference	Sidebar API Reference	Reusable Components with PetiteVue	Enabling DevTools for the Steam and Epic Clients

Melvor Idle version v1.3.1 (Released: 30th October 2024)
Error creating thumbnail: File missing Combat: Error creating thumbnail: File missing Attack • Error creating thumbnail: File missing Strength • Error creating thumbnail: File missing Defence • Error creating thumbnail: File missing Hitpoints • Error creating thumbnail: File missing Ranged • Error creating thumbnail: File missing Magic • Error creating thumbnail: File missing Prayer • Error creating thumbnail: File missing Slayer • Error creating thumbnail: File missing Corruption
Skills: Error creating thumbnail: File missing Farming • Error creating thumbnail: File missing Township • Error creating thumbnail: File missing Woodcutting • Error creating thumbnail: File missing Fishing • Error creating thumbnail: File missing Firemaking • Error creating thumbnail: File missing Cooking • Error creating thumbnail: File missing Mining • Error creating thumbnail: File missing Smithing • Error creating thumbnail: File missing Thieving • Error creating thumbnail: File missing Fletching • Error creating thumbnail: File missing Crafting • Error creating thumbnail: File missing Runecrafting • Error creating thumbnail: File missing Herblore • Error creating thumbnail: File missing Agility • Error creating thumbnail: File missing Summoning • Error creating thumbnail: File missing Astrology • Error creating thumbnail: File missing Alternative Magic • Error creating thumbnail: File missing Cartography • Error creating thumbnail: File missing Archaeology • Error creating thumbnail: File missing Harvesting
Other: Error creating thumbnail: File missing Beginners Guide • Guides • Error creating thumbnail: File missing Bank • Error creating thumbnail: File missing Combat • Error creating thumbnail: File missing Mastery • Error creating thumbnail: File missing Money Making • Error creating thumbnail: File missing Shop • Easter Eggs • Pets • Error creating thumbnail: File missing Golbin Raid • Error creating thumbnail: File missing Full Version • Throne of the Herald • Atlas of Discovery • Error creating thumbnail: File missing Into the Abyss
Reference Tables: Items, Equipment, Experience Table, Upgrading Items, Combat Areas, Slayer Areas, Dungeons, Strongholds, The Abyss, Monsters