The Legendary GameDev Environments Humble Bundle:
https://humblebundleinc.sjv.io/Legendary3DEnvironmentBundle

This is a HUGE collection of assets for Unreal Engine and Unity from Leartes Studio, 95% redeemed on the Cosmo store and 100% are new to Humble Bundle. In addition to this bundle there are several other bundles linked below on Gumroad from Leartes. There are also guides below on how to export these assets to other game engines and tools such as Blender and Godot.

Bundle Link: https://humblebundleinc.sjv.io/Legendary3DEnvironmentBundle
GFS Link: https://gamefromscratch.com/legendary-game-dev-environments-humble-bundle/

The above links help support GFS if used (and thanks so much if you do!). If you have trouble with the link please paste it into a new tab and it should work just fine.

https://gamefromscratch.com/five-new-3d-asset-bundles-unreal-unity-and-godot/
*Godot Engine Supernova Bundle* :
https://gumroad.com/a/704515091/doxnp

*Unreal Engine Supernova Bundle* :
https://gumroad.com/a/704515091/qmwcw

*Unity Supernova Bundle* :
https://gumroad.com/a/704515091/yompf

For all Supernova bundles, use the code SN80 for a massive 160USD discount!

Unity Hypernova Bundle:
https://gumroad.com/a/704515091/qozel

Unreal Hypernova Bundle:
https://gumroad.com/a/704515091/wokcu

Use code HN80 for an 80USD discount on the hypernova bundles.

Using the links above also supports GFS (and thanks so much if you do!).

Guides to Import/Export Assets Between Engines
————————————————————————-
*New Unreal to Godot Convertor*
https://gamefromscratch.com/unreal-to-godot-amazing-new-exporter-tool/

*Is It Legal to Use Unreal Engine Assets in Unity or Godot and Vice Versa:*
https://gamefromscratch.com/using-asset-store-assets-in-other-engines-is-it-legal/

*Unreal to Godot, Blender or Unity:*
https://gamefromscratch.com/exporting-from-unreal-engine-to-godot-unity-or-blender/

*Moving From and To Unity in Minutes*
https://gamefromscratch.com/moving-from-and-to-the-unity-game-engine