When comparing Unity Asset Store vs Kenney Assets, the Slant community recommends Kenney Assets for most people. In the question“What are the best sources of royalty free game assets?” Kenney Assets is ranked 1st while Unity Asset Store is ranked 2nd.
Ranked in these QuestionsQuestion Ranking
Pro User review system helps gauge asset quality
Those who have downloaded an asset can give it a rating (5-star system) and optionally a written review. Packages with at least four show their average rating, and total number of ratings. (Packages below the threshold show "Not enough ratings" instead.)
Pro Excellent presentation, organization, and search
The Unity Asset Store is well-presented, with an intuitive category system and effective search. In addition, the requirements to place an asset on the store include providing several standardized graphical and descriptive elements so that individual packages match the same presentation standards as the store itself.
Pro Nice and beautiful
Pro All game assets are completely free
All of the 20,000 game assets available on the site can be downloaded for free, they require no sign-up.
Pro Public domain license
All game assets are public domain licensed, which means they're completely free to use in both personal and commercial projects. Attribution isn't required.
Pro Wide array of asset types
The game assets come in package with 2D sprites, 3D models, audio files, fonts, UI elements, textures and full game sources (Construct).
Pro Packs can be combined
The various packs all have a similar style which makes it easy to mix-and-match various asset packs to create a complete game.
Pro Original vector files also included
This makes it possible to re-save these assets at any resolution needed.
Pro Assets can be filtered and searched
Game assets can be filtered (by type, tag) and searched through.
Pro Friendly reddit community
New releases, pack requests and help with the site can found on r/kenney.
Con Unity3D license required to download assets
Though assets may be browsed through the web, they can only be downloaded from within a licensed and registered copy of Unity3D (Free or Pro). However, once downloaded, the Asset Store EULA does not prevent using them in non-Unity projects so long as those projects match the "games and interactive media" description.
Con Large gaps between new asset releases
Because just two people are creating assets, Kenney and his girlfriend, new asset releases can have gaps of up to a month.