Found 101 Rain CC0 textures in library

Aerial Beach 01
Aerial Beach 02
Aerial Beach 03
Aerial Grass Rock
Aerial Ground Rock
Aerial Mud 1
Aerial Rocks 01
Aerial Rocks 02
Aerial Rocks 04
Aerial Sand
Aerial Wood Snips
Asphalt 02
Asphalt 025 C
Baseball Playground
Blue Floor Tiles 01
Brown Mud
Brown Mud 02
Brown Mud 03
Brown Mud Dry
Brown Mud Leaves 01
Brown Mud Rocks 01
Burned Ground 01
Coast Land Rocks 01
Coast Sand 01
Coast Sand 02
Coast Sand 03
Coast Sand 04
Coast Sand 05
Coast Sand Rocks 02
Coral Gravel
Coral Ground 02
Coral Mud 01
Dirt Aerial 02
Dirt Aerial 03
Dirt Floor
Dry Ground 01
Dry Ground Rocks
Dry Mud Field 001
Factory Wall
Floor Pebbles 01
Forest Floor
Forest Ground 01
Forest Ground 03
Forest Ground 04
Forest Leaves 02
Forest Leaves 03
Forest Leaves 04
Forest Sand 01
Grass Path 2
Grass Path 3
Gravel Ground 01
Ground Grey
Laminate Floor
Leaking 006
Leaves Forest Ground
Mossy Rock
Mud Cracked Dry 03
Mud Cracked Dry Riverbed 002
Park Dirt
Pebble Ground 01