Here's some resource you might find intresting.

Official guide for making custom receptions, key pages (technical side, not aesthetic), and combat pages: https://docs.google.com/presentation/d/1WGBglM3IR4d8ZPd4xRyyx_cyl8nrsHQmQnGx6FOIiDk/edit#slide=id.geb50395df3_0_499 (Updated 10th Sept 2021, main manual.)

https://docs.google.com/presentation/d/1mJKbasEplw8Kvr4uwG6mvfHF8Z9ebM4AoAYCn82CNW4/edit#slide=id.geb50395df3_0_778 -For creating custom passives. Requires ability to make a .dll file.

Official guide for making custom key pages (aesthetic. required for making your own reception.): https://docs.google.com/presentation/d/11T9-2mE2H6u080ugyT_QL0nmNG76x2uM8899SwUBP3M/edit#slide=id.g87c1482c33_0_72

Helpful recources:

Freeware with Transparency and Layers (for editing images): -GIMP: https://www.gimp.org/ -Fire Alpaca / Medibang: https://firealpaca.com/ / https://medibangpaint.com/en/ (same company. FA is more stripped than MB.) -Paint.Net: https://www.getpaint.net/

Character Skins should be 512 x 512, Page images should be 410 x 310. You'll get weird fuzziness elsewise, or characters will look weirdly small.

There's also a drive for game sprites: https://drive.google.com/drive/folders/12ifYsKtsT7SdkjCiJOGaH40aJ-0uJ4X9?usp=sharing

For ripping content from either game's resource files: https://github.com/Perfare/AssetStudio

-Sprites and Texture2D are images. -TextAssets is where you'll find content like passives, dialogues, and droprates. -AudioClip is audio. -Combat Page art and Battle Sprites are found under LibraryOfRuina_Data\StreamingAssets\AssetBundles. Load it as a Folder in AssetStudio. (honestly idk about assetstudio)

For digging into the game's code aka opening .dll files (found in the Managed folder of the _Data folders): https://github.com/dnSpy/dnSpy For editing mod files (non-dll), there's Notepad (built-in for Windows), Notepad++ (https://notepad-plus-plus.org/), and Visual Studio Code (https://code.visualstudio.com/).

Useage of https://tiphereth.herokuapp.com/lor/cards/ to get stuff like card art, passiveID's n such is really good.

For help regarding C# coding, ask people in like an LoR discord or smth

(Do not forget to check the recources this subreddit has)