[SP] The Winter Testing Initiative
A new testing course has arrived just in time for the holiday season! Can you make it through the five festive tests GLaDOS has in store for you?
~We strongly recomend playing this map in high shader detail, as certain custom textures will not look as good with lower settings.
~Difficulty: Hard
~Estimated Time: 40 minutes - 2 hours
FAQ
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Q: I can't solve (insert puzzle number here)!
A: A video walkthrough is avalaible on this page.
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Q: How long did the map take to make?
A: Seven months.
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Q: How did you get the test chamber/map to look like this?
A: Hammer World Editor (also known as Portal 2 Authoring Tools Beta). Keep in mind most the <Holiday Name Here> models and textures are custom made and unavalaible to the public however!
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Q: Will the team be doing any other holiday maps?
A: None are planned at this time.
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Q: Can you give me <insert custom texture or model here>?
A: To keep these custom elements special, and to respect all the effort the creator's put into them, they will not be released for public use.
CREDITS
Tmast98 - Project Leader, Mapper
DaMaGepy - Mapper, General Support
Colossal - Texture Artist, Modeler, General Support
Josepezdj - Mapper, Texture Artist, Modeler, General Support
P0rtalPlayer - General Support
CamBen - General Support
Johny[SRKA]* - <Holiday Name Here> Tree Model
Prototstar* - Skybox Texture
*Use of these custom creations from cssbanana.
I'll keep a hold of the first post incase I need it for something 
This was excellent. It took me awhile to solve the last chamber, but it was very satisfying when I did. And, according to the walkthrough, I did nothing unintended. Everything worked great; the custom stuff was very well done. Just a great playing experience. Thanks to all of you!
I loved the map, with exception of the last puzzle that was a little frustrating.. (just to be clear: i'm not blaming the the puzzle design, was i that didn't founded the solution and skipped with noclip =P, i'll try again later) overall a great experience loved the design, all that custom content, the fizzler and water textures the snow particles (how did i pack the particle files into the bsp?) the sounds, awsome.. LOVED LOVED LOVED is an easy 5/5 !!!
I think it's a brush entity that makes rain and snow.
Seems I'm a little late to this map. Brilliant map and, Tmast98 - you assembled a first class team for this series of chambers. Nice progression of difficulty - even a dirty cube in the last puzzle as a hint... thanks for creating this masterpiece.... will play this "spotlight" candidate again.... maybe an annual holiday event....
Damnit I want to play this map so bad but my workshop is broken! The screenshots look nice, though. Great job!
Musical website Moddb
I have already said how much I love this map, in the workshop - no need to repeat that here...
The level of detail is great. Love all these small things.
I have played and solved the map 3 times now, and it really is great fun. 
screenshots + spoiler warning ^^
video (easter egg) + spoiler warning ^^
Thanks for mapping - great and enjoyable map with nice puzzles!
Voted 5/5 and 'thumbs up' + 'fav' on the Workshop-page. 
I think it's a brush entity that makes rain and snow.
Nice to know that, Thanks yishbarr =D