The main purpose of this thread is for users to publish brain-teasers/conundrums/enigmas/mystifiers/puzzles/riddles for others to solve. It is preferable that the solution leads to a valid, previously-unredeemed (and not-yet-expired) GOG game code (as a 'reward' for the solver).

Within Ninja Giveaway 2.0 (as well as privately), I had been encouraged by multiple users to create a dedicated puzzle thread. Ultimately, I had agreed to such an arrangement as the post reference links (as part of quoted user posts) within the aforementioned thread, often, do not function as intended. This had hampered my ability to remind users of unsolved puzzles (with unclaimed GOG game codes), as direct-linking did not re-direct users to the proper page and post. I had been told that this occurs after a certain number of posts within a given thread have been deleted by GOG moderators.

GOG staff: For the previously-mentioned reason, if there are posts within this thread that contravene GOG forum regulations, I respectfully ask for you to consider merely editing said posts, rather than full-fledged deletion of each.

Puzzle creators (hopefully, I will not be the lone constructor ^_^): Please, feel free to obfuscate the game codes through whichever means of your own choosing (so long as they are actually puzzles, of course). It is not necessary for your puzzles to conform to my self-imposed rules regarding the creation of nearly-universally intelligble puzzles (to which I attempt to rigidly adhere). Allow for your unique creativity to be your guide. : ) Once you become aware that a code has been redeemed, please, indicate this within your post containing the relevant puzzle (by writing something to the effect of "Puzzle has been solved." or "Code has been redeemed."). Also, if you so desire, do not hesitate to provide the solution (whether brief, or, detailed).

Solvers/code redeemers: Please, reply to the post containing the puzzle in which you had solved, or, if you do not wish to publicly identify yourself, privately notify the creator of said puzzle (afterwards, the puzzle creator should verify this (by checking the status of the code) and edit their post accordingly). This polite gesture informs other forum members that it is futile to continue attempting to decipher a given puzzle (operating on the assumption that their primary motivation is the possibility of redeeming the game code).

While some of the puzzles that I create may require basic understanding of Cyrillic characters, in general, potential-solvers of puzzles involving 18-character GOG game codes that had been acquired at no additional expense (such as those sourced from Amazon Prime Gaming) are only expected to possess the following: Puzzles involving 20-character GOG gift codes (with a cost of at least 0.01 (U.S. dollar, or, other currency)) may assume that the very same aforementioned prerequisites are met... or, they might seem to challenge the very definition of a logic-based riddle (to an extent). With this type, deductive reasoning will still be quite helpful, but, the difficulty may or may not be greatly-enhanced (in comparison to the other mystifiers).

Below, as it may prove necessary to refer to a particular puzzle, I will be creating individual posts for each of the six currently unsolved puzzles that I had previously-published within the Ninja Giveaway 2.0 thread. Later (which might be as early as today), I and/or other users will submit additional riddles. : )

Update: Though an attempt had been made to give the code away, on 2024-11-08, it had expired.

South of the Circle
TMCVА10 22DД6 81Ф2

GOГ.coм [ : . ]
GOG.com * * * | * * * | ' | ( : ) [ : ]
COG.gom [ : ]
GOG.com * * * * * * * | * * * * | ' . ' . ' . ' . ' . ' | ( : : : ) [ : ]

INDUSTRIA
JЕ8C 8 126319Ф7144

GOG.com * * * | * * | ' . ' . ' . | ( : ) [ : : ]
COG.gom [ : ]
GOG.com * * * * * * | * * * | ' . ' | ( : : ) [ : . ]
GOГ.coм [ : ]

sterceS dna sllepS
RMP4M6MAESUUADFV3NSC

MERCURY
VENUS
EARTH
MARS
JUPITER
SATURN
URANUS
NEPTUNE
PLUTO

DFV...C = DFV...C -> || |||| | ... |||
+

Music to inspire the mind (unrelated to solving puzzle, I promise):
Fearless -- Moln -- Tranceblaster -- The Only Way Is Up

Update: On 2024-10-27, as the code had been set to expire on 2024-10-28, it had been given to a user. As far as I am aware, the puzzle itself has yet to be solved.

LEGO The Lord of the Rings

Arcade Paradise

50 53 41
65 74 6C
72 75 69
63 64 67
68 79 6E

6E 67 69 41 53 32 63 65 72 68 50 6C 79
72 68 6C 26 63 69 50 65 67 53 79 75
65 69 53 72 50 79 67 68 63 30 75 6E 41
6C 79 34 53 68 67 50 37 69
75 67 53 72 68 50 25 6C 79
41 75 68 6E 65 53 69 33 67 35 79
79 65 68 67 53 6C 72 63 69 27 50
63 69 50 31 72 65 6E 67 75 68
6C 50 72 41 6E 63 68 24 53 38 69 79 65 67 75
69 53 75 63 6E 65 36 79 41
68 75 79 28 72 50 65 67 41 53

3 5 L U _ _ _ _ _ _ _ _ _ _ _ _ _ _

Moonlighter
9HSWTMIYR9VEAYIGOG

CALLISTO
CHARON
DIONE
ENCELADUS
EUROPA
GANYMEDE
IAPETUS
IO
MIMAS
RHEA
TITAN
TRITON

9HSW = 9HSW -> ||| | |||| ||

Fellow Earthlings, please, conduct extra-vehicular activity without the usage of a helmet (symptoms of asphyxia are ephemeral):
Not of This Earth -- Spacewalk

else Heart.Break()
UZLNV-YLHKV-NMXVK-WNVJN As the anniversary of the creation date of this so-called 'Libra' is near, it had been decided that (for the very first time ever) the purchase of a GOG gift code would take place. This game occupies a quite prominent position within my mind (as it had rejuvenated my fondness of programming). (^_^) Hopefully, the (eventual?) solver will enjoy it to the same extent (the story, while serviceable, is best viewed as an introduction to in-game features, and is not the main enticement).

I fondly remember the time, when GOG held giveaways in puzzle form.

Yep. Actually ten years ago, for their 6th birthday.

Update: The puzzle has been solved by a persevering user whom had gained a fresh perspective. Hirako__, may the game be as equally enjoyable for you as the journey made while attempting to obtain it. (^_^)

9 Years of Shadows
P U Z G _ _ _ _ _ _ _ _ _ _ _ _ _ _

Are you sure the code for Arcade Paradise is still valid? I think, I cracked the key, but the redeem page says code invalid.

EDIT: Actually it says "code not found" not "invalid".

Maybe I´m not typing it in the right order? I solved the code for 9 Years of Shadows too, but it still says "Code not found".

Its impressive you think you solved the puzzle with such confidence to be fair considering how hard these puzzles are. The fact it says "Code not found" means you have not solved it ^^. I assume you found the 14 symbols for the code and added them to the first 4 but this is just too simple and these are never simple. I spent a few hours today trying to do the 9 Years of Shadows but it seems there is more going on beyond some other stuff I have find out.