The site looks very similar to HDRI Haven - a site with hundreds of free HDRI maps. Both sites are donated by patreons and, looking at the fast development of HDRI base, we must say that start of Texture Haven looks promising. The site offers PBR textures with CC0 (creative commons) license.

Features:
- All textures are licenced as CC0 and can be downloaded instantly, no paywalls, email forms or account systems.
- 8K, PBR - not just photos, but scanned map sets for the full PBR experience.
Texture Haven is run by Rob Tuytel, environment designer from Netherlands. If you are interested in site development, you can support Texture Haven on Patreon, which will allow developers to upload more textures with higher resolution and provide more formats.
Visit Texture Haven.
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