I’m having some trouble finding suitable Unreal engine assets for an intern to use the latest Unreal engine on our (stereo) cylinder and semi-dome at Curtin, but in the meantime..

UPDATE: here is the EPIC Sun temple download link: https://developer.nvidia.com/ue4-sun-temple

[And I assume you have something like
http://www.meshlab.net/ to convert and a 3D modeller like (free) Blender 3D
https://www.blender.org/ ]

• Resource list https://forums.unrealengine.com/development-discussion/content-creation/28291-community-list-free-software-tools-resources-list?57471-Community-List-Free-Software-Tools-amp-Resources-List=
• https://free3d.com/ (many personal use only)
• https://mobilegamegraphics.com/product-category/all_products/freestuff/
• from motion capture http://mocap.cs.cmu.edu/resources.php see also http://mocap.cs.cmu.edu/search.php?subjectnumber=%&motion=%
• Blender assets https://www.blendswap.com/
• https://www.modelplusmodel.com/free.html
• http://www.sharecg.com/
• https://www.renderosity.com/ (requires a free account)
• https://3dsky.org/
• https://archive3d.net/
• Clara 3D model library https://clara.io/library
• https://www.cgtrader.com/free-3d-models
• Mostly professional (for a fee) https://www.turbosquid.com/ free: https://www.turbosquid.com/Search/3D-Models/free
• Nb 2D but may be useful https://craftpix.net/freebies/

Thanks for many of the above links, to the Unreal engine forum.