Remember to credit the creators if you use assets made by others.

Art

2D

General

• https://kenney.nl/assets/category:2D?sort=update
• https://opengameart.org/art-search-advanced?keys=&field_art_type_tid[]=9&sort_by=count&sort_order=DESC
• https://itch.io/game-assets/free/tag-2d

Pixel

• https://danieldiggle.itch.io/sunnyside
• https://anokolisa.itch.io/dungeon-crawler-pixel-art-asset-pack
• https://shubibubi.itch.io/cozy-interior
• https://brullov.itch.io/oak-woods
• https://trixelized.itch.io/starstring-fields
• https://pixelfrog-assets.itch.io/kings-and-pigs

3D

• https://www.cgtrader.com/free-3d-models
• https://kenney.nl/assets/category:3D?sort=update
• https://www.artstation.com/marketplace/game-dev/assets?section=free
• https://www.unrealengine.com/marketplace/en-US/assets?count=20&sortBy=effectiveDate&sortDir=DESC&start=0&tag=13960
• https://itch.io/game-assets/free/tag-3d