palm_b et palmBark
    from Hacienda, by Jean-Manuel Clemencon (Samuncle)
    >> clarify license!! probably CC-BY-SA 3.0 <<

tree_1, tree1Low
    from Zen Garden, by Jean-Manuel Clemencon (Samuncle)
    >> clarify license!! probably CC-BY-SA 3.0 <<

wooden, wooden2
    by Jean-Manuel Clemencon (Samuncle)
    based on public domain images from burningwell
    released under the public domain

sign*, lighthouse.jpg, house.jpg
    by Auria, based on images from burningwell, http://www.publicdomainpictures.net/ and OpenClipArt
    released under the public domain

trees from http://www.yofrankie.org
    licensed under CC BY 3.0
    http://creativecommons.org/licenses/by/3.0/

mushrooms and small plants, BurdockLeaf.png, CornusAmericana.png,
FieldPlant2.png, GroundCover.png, Jackinthepulpit.png,
Mint.png, Mushroom*, StreamPlant.png, WhiteFlowerLeaves.png,
WhiteFlowerSkin.png
    from the dims_arboretum
    by Dims. Released under CC-BY 3.0

Metal beams, mine cart, metal_rusted.jpg, metal_rusted_circle.jpg,
modern_mine_beam.png
    (c) 2008-2010 Ivar ten Cate (varivar@live.nl)
    licensed under CC BY-SA 3.0
    http://creativecommons.org/licenses/by-sa/3.0/

roof
    by Jean-Manuel Clemençon (Samuncle; http://samuncle.toile-libre.org/)
    based on work by Marianne Gagnon (Auria), based on public domain photos from BurningWell

blackrock.jpg, castelwall.jpg
    by Jean-Manuel Clemençon (Samuncle; http://samuncle.toile-libre.org/)
    released under CC-BY-SA 3.0 license

wood_planks*
    based on image by Varivar, modified by Canis Lupus
    CC-BY-SA 3.0

sea ship models by Canis Lupus

cactus model and texture (c) 2008-2010 thomas oppl (toppl@fh-sbg.ac.at)
    licensed under CC BY-SA 3.0
    http://creativecommons.org/licenses/by-sa/3.0/

ufo model, metal_plate.png and ufo_window.png
    by Rudy85
    released under CC-BY-SA 3.0
    
metaldoor
    based on work by Gastro-en
    Released under CC-BY 3.0
    http://commons.wikimedia.org/wiki/File:Tretye_Pole_NNov_Palatka_9804.jpg
    
nolok_ao
    by Marianne Gagnon, public domain
    
bubble.png
    by Marianne Gagnon
    based on images from Wikimedia commons by Saperaud and Mila Zinkova
    released under CC-BY-SA 3.0

sea.jpg
    by Marianne Gagnon
    based on public domain image from http://www.publicdomainpictures.net/
    released under the public domain

rocket model, metaloverlap.png and door.JPG
    by CT_daBomb
    released under CC-BY-SA 3.0

hacienda and hut models
    by Jean-Manuel Clemencon
    released under CC-BY-SA 3.0

wall.jpg, wall.png
    by Jean-Manuel Clemencon
    released under the public domain

roof.png
    by Jean-Manuel Clemencon & Marianne Gagnon
    released under the public domain