You awaken in a strange floating biosphere, laying dormant in the sky. You look around for an escape route down to the ground, but none are visible. The only other bit of land you can see are some other biospheres. What are you going to do?

The Sky-Spheres are here, and you have to survive them! Make your way through different types of Biospheres as you complete lists of difficult challenges.

Sky-Spheres provides about a day or longer of gameplay. All the more time to savor the experience! This map was inspired by Rigusami's biospheres mod.Enjoy
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*NEW UPDATE!*Nether-Sphere
Journey to the Nether-Sphere and make your way around the perilous
lakes of lava. Dodge hordes of zombie pigmen as you combat a vicious
ghast! Find the hidden tomb of the fallen hero
and search for the nether-dungeon! Are you ready to go through hell?
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Taiga-Sphere (Added around the middle of May, 2012)

"It's beginning to look a lot like...Taiga-Sphere!"
Jump around in the snowy landscape of Taiga-Sphere! Tame a
pack of wolves! Find the hidden dungeon. Don't forget to look out
for hidden chests, which are full of surprises! Have a blast with this
winter wonderland!
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Desert-Sphere (Added around the end of April, 2012)

You're stranded in a desert. Cacti and dead brush surrounds you.
Wait...this isn't a desert! It's Desert-Sphere! Can you find the hidden
oasis, so that you can quench your thirst? Can you gain 50 XP? in this
dreary desert wasteland? Can you survive? We'll see.
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Sky-Sphere (posted around March, 2012 or April, 2012)

Enjoy a peaceful survival experience in the original Sky-Sphere!
Build a small hut in the serene forest. Make a small farm and cultivate
wheat and other crops. The Sky-Sphere is the beginning of a journey
that ends in the final bio-sphere, Ender Temple Sphere. there
you will enter a humungous Ender temple and enter the End Portal.
Let the journey to the end begin!
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Notice: Just to clarify this, all Bio-Spheres in this map
are perfectly original content made by me. I did not, I repeat, did NOT copy these from
Rigusami's Biosphere mod. Plagiarism just ain't my thing.
:)

Please give this project a diamond, subscribe to me, or comment if you deem this project worthy. Thanks :D

UPCOMING UPDATES: Adding Plains-Sphere around the middle of July or later

Additional Notes

The texture pack is by The CreativeOne. I don't know how to find him. Try Googling his stuff, because he's not in Planet Minecraft.
Plus, there will be new challenges added with every new biome-sphere

Previous versions:
v.3.0: www.mediafire.com/?r9fm741l12yrqnk
v.2.0: www.mediafire.com/?838w8xw2rua4a9r
v.1.0: www.mediafire.com/?rg3349036msm973