Assets
Assets can speed up game development by allowing you to focus on important parts of your game, and purchasing unimportant parts off-the-shelf.
Asset Stores
Section titled “Asset Stores”No marketplace is intentionally excluded. These are in no particular order. The authors receive no compensation from your usage of these services.
Fab is Epic Game’s storefront and, in addition to a massive library and decent licensing, there are NSFW assets available. Assets here tend to be pricey, but sales are also common. Lots of 3D and realistic assets, and free assets rotate every other week.
Best for Unreal Engine. Some products also offer Unity assets or raw files that can be loaded into any engine. Most assets may be used outside of Unreal Engine, always check the licensing.
Link - Free Assets - Standard License
Unity Asset Store
Section titled “Unity Asset Store”Unity Asset Store is the official Unity marketplace for assets. Most licenses allow usage in other game engines, though! Always check the licensing.
Godot Asset Store
Section titled “Godot Asset Store”As of writing, everything in Godot’s official asset store is free and may be used with any engine, not just Godot. There tends to be Godot addons and some stylized assets here. Licenses vary, always read the license.
GameDevMarket
Section titled “GameDevMarket”An engine-agnostic marketplace with many game assets.
Humble Bundle
Section titled “Humble Bundle”While not a game asset market, there are frequently massive game asset bundles at a fraction of retail price, for all sorts of game engines. Licenses vary, always check the license. Bundles rotate, so check every once in a while.
Cosmos by Leartes
Section titled “Cosmos by Leartes”Leartes’ Cosmos sells large-scale environment packs and frequently has sales.
Mostly focused on Unreal Engine, but most assets may be used in other engines. Always check the license.
AmbientCG
Section titled “AmbientCG”All AmbientCG assets are licensed as CC0, so you can do whatever you want with them. They have high-quality PBR textures for photorealistic rendering, Skyboxes, and 3D models. It is completely free.
Polyhaven
Section titled “Polyhaven”All polyhaven assets are licensed as CC0, no usage restrictions. They have high quality 3d models, environments, and materials. These are geared towards rendering, not game development, so some assets may need work to have real-time performance. Most assets are completely free.
Notable Individual Assets & Packs
Section titled “Notable Individual Assets & Packs”No asset or pack intentionally excluded. These are in no particular order. The authors receive no compensation from your usage of these services.
OpenNSFW Sound Pack
Section titled “OpenNSFW Sound Pack”Massive pack of free voices and sounds for NSFW contexts.
Be aware of potentially uneven licensing for non-animation media. Video games may qualify as repackaging under a different brand, which is against the terms. Furthermore, the terms may be contradictory, as it is licensed under Creative Commons Attribution 4.0, which stipulates absolutely no additional legal or technological restrictions, but then adds additional legal restrictions. This is not legal advice. If this worries you, ask a lawyer or request custom terms from the owners.