When comparing Super Game Asset vs Freesound, the Slant community recommends Freesound for most people. In the question“What are the best sources of royalty free game assets?” Freesound is ranked 5th while Super Game Asset is ranked 22nd. The most important reason people chose Freesound is:
All assets made available through Freesound are required to be licensed under either CC0, CC-BY or CC-BY-NC.
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Pros
Pro Best for RPG Games assets
Best for RPG Games. If you are creating your own RPG or isometric games, Super Games Asset store has the highest quality 2D games assets you can buy online. They offer awesome RPG game icons (these are probably the best you can purchase directly online), 2D sprites, character animation sprites, and huge hand painted RPG game maps in isometric view. Majority of game assets here are visually consistent.
Pro Creative Commons licensing
All assets made available through Freesound are required to be licensed under either CC0, CC-BY or CC-BY-NC.
Pro Extensive asset information
Each sample has a details page which includes a waveform view, a full-length audio preview, user-assigned tags, author-assigned "pack" grouping, and an author chain ("remixes and sources") for derivative assets.
Cons
Con Some assets may have restrictive licenses
Freesound permits uploaders to select the CC-BY license, which disallows the use of DRM, and the CC-BY-NC license, which disallows commercial use entirely. Licenses are prominently displayed on an asset's details page, and represented by a small icon in list views, but there is no option to filter by asset when searching or browsing.
Con Audio samples and sound effects only
Freesound does not host any kind of non-audio asset.
Choice of music is also scant.