This is a paid asset, but now you can download RESOURCE RPG ICONS 32×32 PIXEL ART for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
RESOURCE RPG ICONS 32×32 PIXEL ART v1.0
Resource RPG Icons 32×32 Pixel Art is a great package in which every developer of modern 2D games will find something that will make his project truly beautiful and unique. 100 icons of various resources are stored here, namely: hammers, saws, axes, shovels, chisels, anvils, metal products, logs, branches, boxes, beautiful types of minerals (red ore, green sapphires, diamonds, iron ore and others). Such a huge selection will help you easily create a cool dungeon world in which miners will work or where the player will have to collect the necessary resources to survive.
Each icon is designed in the popular Pixel Art style and 32×32 resolution, making it easy to customize the whole package to suit your game and community. For editing of any kind it is better to use Adobe Photoshop or other graphic editors with similar functionality. Also, it is perfect for many popular genres such as platformers, runners, survival, RPG or even horror.
Graphics: 2D, Pixel art;
Format: PSD, PNG;
Quantity: 100 icons.