Higgas geometry nodes tool set:
https://blendermarket.com/products/geometry-nodes-groups?ref=311
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Blender Memory Optimizer:
https://blendermarket.com/products/memsaver-scene-memory-optimizer?ref=311
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Hair Brick Addon:
https://blendermarket.com/products/hair-bricks-addon?ref=311
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Moss Biome GroundAssetkit:
https://blendermarket.com/products/moss-biome-ground-scatter—3d-assetkit-pbr?ref=311
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free column generator:
https://blendermarket.com/products/stone-column-generator-for-bagapie?ref=311
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Kafire:
https://blendermarket.com/products/kafire?ref=311
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Fracutre Iterator 1.5:
https://blendermarket.com/products/fracture-iterator?ref=311
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Procedural fluid simulators:
https://blendermarket.com/products/procedural-fluid-simulators?ref=311
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free models:
https://blendereverything.com/category/free-models/