This is a just-for-fun type of page for people to list their accomplishments and provide badges for display on their author pages. Please leave a comment listing every achievement you are eligible for along with any relevant links to verify your claim. This is optional for now, we're going by the honor system. After all, anyone caught clout-chasing by claiming achievements they hadn't earned would inevitably be discovered and reveal the weak character of the perpetrator.
Keep entries at approximate Tweet-length, if they're too long they will be trimmed. Try not to have excessively long lists of links. Keep it clean and classy.
Feel free to leave suggestions in the discussion page for future achievements to be added in the comments. This page is intended to grow over time so check back occasionally for new achievements.
Secret Achievements Not Yet Unlocked

Certificate Of Attendance
Post an Author Page, add to a Collaborative Log, and participate in an Official SCP Wiki Contest.
Awardees:

Human, All Too Human
Author of at least 5 Humanoid SCPs; all rated +50 or higher
Awardees:
weizhong
djkaktus
CadaverCommander - SCP-4999, SCP-1233, SCP-4553, SCP-3588, SCP-3889, SCP-3885, SCP-3884, SCP-3892, SCP-3982, SCP-3988, SCP-4333, SCP-4449, SCP-4866
DrAkimoto - SCP-2743, SCP-5808, SCP-5049, SCP-5707, SCP-5049
Jacob Conwell - SCP-1360, SCP-2106, SCP-2860, SCP-3060, SCP-3860
MaliceAforethought - SCP-3663, SCP-2856, SCP-3856, SCP-3564, SCP-4856
Cerastes - SCP-5721, SCP-5998, SCP-3928, SCP-5239, SCP-2510
Uncle Nicolini - SCP-5047, SCP-4432, SCP-4026, SCP-4967, SCP-4817
RJB_R
NatVoltaic
Deadly Bread
stormbreath

Draw Me Like One Of Your [REDACTED]
Create an artwork page with a rating of at least +30.

Full House
Author of a main list SCP, a Joke SCP, an Explained SCP, a Tale, and a GoI Format all rated at +50.
Awardees:

Bard
Write 10 tales rated at +30 or higher
Awardees:

Participation Trophy
Write an article rated at least +100
Awardees:
Yossipossi
weizhong
Captain Kirby
djkaktus
CadaverCommander
DrAkimoto - SCP-4677
Jacob Conwell - SCP-1360
Mew-ltiverse
Deadly Bread
pastarasta1
Leveritas
MaliceAforethought - SCP-2856
Rounderhouse
Westrin
Calibri Bold - SCP-4645
spikebrennan
Cerastes
Uncle Nicolini
RJB_R
NatVoltaic
Popsioak
DianaBerry — SCP-4319
stormbreath
UraniumEmpire
etoisle - SCP-5094
WizzBlizz - SCP-5092
Ralliston

Friend Of The People
Take part in 5 writing collaborations. You must be a full co-author, not just a contributor.
Awardees:

Straight Out Of Central Casting
Create a character who merits their own tag and has been featured in works by 3 other writers.
spikebrennan - Sheldon Katz
djkaktus - Director Aktus
RJB_R - Researcher Rosen, Director Gillespie, Dr. Roget
Jacob Conwell Agent Sasha Merlo, Researcher Conwell, Vincent Anderson
MaliceAforethought - Researcher Lloyd
CadaverCommander - Moon Champion
Uncle Nicolini Faeowynn Wilson, Doctor Everwood
UraniumEmpire - Veronica Fitzroy

International Skip Of Mystery
Write at least 3 articles for Unofficial/Official SCP-INT sites that aren't using your first language.
Awardees:

Eureka!
Write an SCP using your own image that was inspired by your own life experiences.
Zyn
Captain Kirby
RJB_R
DrAkimoto - SCP-4347
Dr Moned - SCP-5325 "I visited this station in France 2 years ago, as well as learning about the history of the station and why it got shut down."
Jacob Conwell - SCP-4660
Westrin - SCP-1831
Uncle Nicolini - SCP-4311
H0dari - SCP-5043

Canonball
Write at least 3 Tales set in one or another of the official canons, with minimum rating of +50 each.
Awardees:

The Medium Is The Message
Author of at least 10 media files (images, audio, videos, etc.) that are used on the wiki. Must be original works released under a version CC-by-SA license compatible with the SCP Wiki.
Awardees:

Look Ma! I'm On TV!
Have one of your works be featured on an off-site video, podcast, video game, etc.
Kain Pathos Crow
djkaktus
CadaverCommander
DrAkimoto - SCP-4768 and video
Jacob Conwell - SCP-1360 and SCP-2306 and SCP-3560 in Confinement Episode 3 and In The Pines
Yossipossi
Mew-ltiverse
Deadly Bread
Leveritas (Bluesoul's Podcast on SCP-4970)
MaliceAforethought (Night Mind SCP Vault 2)
Rounderhouse
Westrin
Calibri Bold (TheeSherm's video on SCP-3448-J)
Captain Kirby
spikebrennan
Cerastes
Uncle Nicolini
RJB_R
Popsioak
NatVoltaic
stormbreath
UraniumEmpire
etoisle - (from TheeSherm)
weizhong
Ralliston

Writerbot
Write 50 pages at >+50.
Awardees:

Beast Master
Write 3 SCPs over +50 featuring animals, reptiles, fish, or other non-cryptid creatures.

Level Up!
You've been a member of the SCP Wiki for one calendar year.
Awardees:
FritzWillie
A Fat Ghost
Waxx
ghostchibi
RJB_R
weizhong
djkaktus
CadaverCommander
Jacob Conwell - 2012
pastarasta1
Yossipossi
Mew-ltiverse
Deadly Bread
Leveritas
MaliceAforethought
Rounderhouse
Westrin
Captain Kirby
spikebrennan
Cerastes
The Pighead
Aethris
Uncle Nicolini
NatVoltaic
H0dari
aforestfullofstars
Popsioak
DianaBerry
stormbreath
UraniumEmpire
etoisle
Ralliston

Skip Tutoring
Have an SCP draft thread you gave feedback on succeed on the main list.

Winning!
Win an SCP Wiki contest as an individual or part of a team, without being disqualified or otherwise having your entry invalidated. The "10 Years Birthday SCParty '17" contest does not count towards this or any other contest-related achievement.

The Betamax
Win second place in a contest.

Thousandaire
Entered into any of the X000 contests (i.e. SCP-1000, SCP-2000, SCP-3000, etc.)
Authors still qualify even if their entries were deleted after the contest ended, but not if they were disqualified
Captain Kirby
DrSevere
Salman Corbette
Quikngruvn
Anaxagoras
Nighkos
RJB_R
djkaktus
Joreth
A Random Day
Rounderhouse
Uncle Nicolini
CadaverCommander
DrAkimoto - SCP-5708
Jacob Conwell - SCP-3060, SCP-4160, SCP-5060
Yossipossi - SCP-5001
Deadly Bread
MaliceAforethought - SCP-5790
Westrin
spikebrennan
Cerastes - SCP-5998
Uncle Nicolini SCP-4003, SCP-5555
NatVoltaic
Popsioak
stormbreath
UraniumEmpire
weizhong

Hat Trick
Win as an individual or as part of a winning team in 3 SCP Wiki Contests
Awardees:

Savior Of The Fallen
Author of at least 5 successful rewrites rated at least +50.

First!
Wrote an SCP-001 proposal which achieved a rating of +250 or higher.

Dynasty
Win in back-to-back contests.
TroyL(back-to-back-to-back)
LurkD
HammerMaiden
Rounderhouse
notgull

Renown
Author of at least 3 articles rating at or over +300.
Awardees:

Iconic
Author an article rated at or over +600
Awardees:
djkaktus - 19
Dr Gears - 15
DrClef - 12
qntm - 9
PeppersGhost - 8
Communism will win - 7
DrEverettMann - 7
Salman Corbette - 7
AdminBright - 6
Sorts - 5
Tanhony - 3 (all over 1000)
weizhong - 3
Kate McTiriss - 2
CadaverCommander - 1
Westrin - 1
spikebrennan
Captain Kirby

Hall Of Fame
Write 5 or more articles rated at or over +500
djkaktus - 19
Dr Gears - 15
DrClef - 12
qntm - 9
PeppersGhost - 8
Communism will win - 7
DrEverettMann - 7
Salman Corbette - 7
AdminBright - 6
Sorts - 5

Sharpshooter
As an author of at least 10 articles on the wiki, have an average net upvote rating for your body of work that is at least +100

Dead Men Can Tell Tales
Have an article that was previously deleted and rewritten get to +50 or above.
Extra! Extra!
One of your articles has been featured on the front page.
Critical Darling
Be featured on the Reviewers' Spotlight.

Secret Christmas Presents
Successfully participate in the official Annual Holiday Art Exchange, becoming someone's Secret Santa.

Pagemaster
Contribute icons or new achievements to the SCP Achievement Badges Page