Official Terraria Wiki
terraria.wiki.gg › wiki › Celebration_Mk_10
Celebration Mk 10 - Official Terraria Wiki
May 21, 2026 - Celebration Mk 10 (also known as the Birthday World or Anniversary World) is a special world seed. It celebrates Terraria's tenth birthday, May 16, 2021.
Fandom
terraria.fandom.com › wiki › Celebrationmk10
Celebrationmk10 - Terraria Wiki - Fandom
4 weeks ago - Celebrationmk10 is a secret world seed introduced in the 1.4.2.3 update. This seed celebrates Terraria's tenth birthday, May 16, 2021. The following seeds can be used to generate a Celebrationmk10 world (case-insensitive): Please update this ...
So this is the new 1.4.2.3 seed. The seed is called CelebrationMK10
To make the things better for the wiki editors (there is not a wiki page for the seed yet), here are the stuff I found so far: -Most parts of the world are painted cyan -Structures (such as the dungeon, living trees and pyramids) are painted pink -You spawn in the ocean -You spawn with 4 npcs with 3 having the names of the devs: Guide as Andrew, Whitney as Steampunker and Yorai as princess (she sells slime staff, hearth lantern and flasks of party here). There is also a bunny town pet here -It is party until the first night -All trees have been changed into their rare variants -Clouds with the Terraria tree logo appear sometimes -The world is permanently in Christmas and Halloween -Wall of flesh is smaller like in FTW -Queen bee is smaller -Skeletron and the mechs are smaller -BoC and EoW are smaller -Fishron is smaller -EoL is smaller -The pillars are smaller And that is all the stuff I found, if someone finds more stuff, please tell me More on reddit.com
43
353
May 16, 2021The new 10th anniversary celebration seed will be our savior.
Humanity restored More on reddit.com
522
16495
May 17, 2021Here’s some advice for all people who want to play the 10th Anniversary seed (celebrationmk10) since the wiki has no information on it
The wiki lists all of this too… You are using the official wiki and not the fandom one right? More on reddit.com
11
11
March 9, 2023Celebrationmk10 is a blessing from Heaven
For those who don't know, in the Celebrationmk10 seed the Rod of Discord has a 1% drop chances, compare to 0,2% in normal world (0,25% in Expert mode) More on reddit.com
116
2084
November 12, 2022Reddit
reddit.com › r/terraria › here’s some advice for all people who want to play the 10th anniversary seed (celebrationmk10) since the wiki has no information on it
r/Terraria on Reddit: Here’s some advice for all people who want to play the 10th Anniversary seed (celebrationmk10) since the wiki has no information on it
March 9, 2023 -
The tenth anniversary seed (celebrationmk10) is made out to be easier than a normal world when you look at the wiki with the only listed changes being that chests give you items of the best modifier and the world is painted (Also you start with different NPCS) However there are many more changes, so here are the ones I’ve experienced so far. The shimmer is much more common, you spawn on the beach rather than the middle of the world, living trees are super common and on large worlds border each biome except the beach and the forest, king slime with get smaller as you chip his health away, The Eye of Cthulhu is significantly smaller, the brain of Cthulhu is a little bigger than the player and the creepers are super tiny, and lastly pink bouncy boulders exist instead of normal ones and are pretty much insta death in early pre hardmode.
An example of how dang small this eye is Top answer 1 of 3
8
The wiki lists all of this too… You are using the official wiki and not the fandom one right?
2 of 3
2
Also update every boss is around 1/10 of their original size with the exceptions of Moon Lord, The Cultist, all event bosses but the Pillars, and Golem (who are normal sized) and Plantera who is smaller but not by too much
I made a guide to my 15 favorite new secret seeds, special seed combos, and revamped special seeds! Feb 27, 2026
r/Terraria 4mo ago
Fandom
terraria.fandom.com › wiki › Secret_world_seeds
Secret world seeds - Terraria Wiki - Fandom
4 weeks ago - This is due to the random seed being a random number between 0 and 2147483647; the random seed can match the one needed for one of these secret seeds. The chances are doubled for the Celebrationmk10 seed due to the fact that two seed numbers ...
Official Terraria Wiki
terraria.wiki.gg › wiki › Special_world_seeds
Special world seeds - Official Terraria Wiki
June 15, 2026 - Unlike the other special seeds, Drunk and Celebration Mk 10 world seeds are interpreted as numbers, so any number of 0s can be added in the front (e.g. 000005162020 for Drunk). In addition, there are numerous unintended strings that generate these two special seeds (due to the use of the CRC-32 algorithm[6]), such as: ... Coincidentally, the third seed references Yoraiz0r, a Terraria programmer.
GameRant
gamerant.com › home › gaming news › pc news › terraria celebrates 10-year anniversary with unique world seed
Terraria Celebrates 10-Year Anniversary With Unique World Seed
May 18, 2021 - Fans are used to taking on difficult ... World Seed, but to access it players will need to discover the name and enter it into the World Seed field in the World Creation Menu....
YouTube
youtube.com › watch
Terraria 1.4.2.3 - Everything About 10th Anniversary Secret World Seed - YouTube
In this video we will look at the new secret world seed "celebrationmk10" added in Terraria 1.4.2.3: Journey's End and everything you need to know about it. ...
Published May 17, 2021
Official Terraria Wiki
terraria.wiki.gg › wiki › Special_seed_combinations
Special seed combinations - Official Terraria Wiki
1 week ago - The Zenith seed is considered a combination of all special world seeds besides Skyblock; deselecting any of its component seeds will also deselect Zenith. ... Adding The Constant or Remix makes Larvae almost 3 times less common, while No Traps makes them 33% more common.[1] Adding Remix makes the Dungeon no longer overgrown. Adding Celebration Mk 10, Drunk world or The Constant makes the center portion of the world revert to normal.Verify
Reddit
reddit.com › r/terraria › so this is the new 1.4.2.3 seed. the seed is called celebrationmk10
r/Terraria on Reddit: So this is the new 1.4.2.3 seed. The seed is called CelebrationMK10
May 16, 2021 - A Celebration mk10 and Drunk seed turn all water to Shimmer.
YouTube
youtube.com › watch
Terraria Has Another HUGE Secret! (10 Year Anniversary Secret Seed) - YouTube
In today's video, we're taking a look at the brand new secret seed for Terraria! Today marks 10 years since the initial release of Terraria and to celebrate ...
Published May 16, 2021
YouTube
youtube.com › watch
CelebrationMk10: 10th Anniversary's Secret Seed - Terraria - YouTube
"CelebrationMk10" is a secret seed introduced to celebrate Terraria's 10th anniversary. This video briefly covers the characteristic of said world seed.The f...
Published April 25, 2022
PC Gamer
pcgamer.com › games › adventure › terraria
Terraria celebrates its 10-year anniversary with a new world seed and bug fixes | PC Gamer
May 17, 2021 - Steam Workshop support for your ... all players with a new world seed, which you can access by figuring out its name (pssst—it has to do with the date of the anniversary)....
Reddit
reddit.com › r/terraria › the new 10th anniversary celebration seed will be our savior.
r/Terraria on Reddit: The new 10th anniversary celebration seed will be our savior.
May 17, 2021 - Maximised Luck will bring its drop rates from 1/500, 1/400 (expert and higher) or 1/100 (celebrationmk10 seed) up to 1/250, 1/200 or 1/50. ... 16 May, 2021 is the 10th anniversary of terraria, so devs made a special seed about it.
YouTube
youtube.com › watch
You HAVE to Try This New SECRET Terraria Seed! - YouTube
Terraria just turned 10 years old, and along with this anniversary came a brand new secret seed for us to explore!Seed: 0516202105162011celebrationmk10 Watch...
Published May 17, 2021
GameRant
gamerant.com › home › gr originals › everything you need to know about terraria's tenth anniversary seed
Everything You Need to Know About Terraria's Tenth Anniversary Seed
May 19, 2021 - This year, Terraria is celebrating its 10th anniversary, and in celebration of this milestone Re-Logic released a new World Seed for players to explore.
Switchblade Gaming
switchbladegaming.com › home › terraria › terraria world seeds 2026: all special seeds and what they do
Terraria World Seeds 2026: All Special Seeds and What They Do - Switchblade Gaming
April 9, 2026 - Some players specifically use it ... for normal game progression. Celebrationmk10 is a special anniversary world created to celebrate a major Terraria milestone....
ScreenRant
screenrant.com › home › gaming › 16 best world seeds in terraria
16 Best World Seeds In Terraria
January 11, 2025 - Celebrationmk10 is a secret world seed developed to celebrate Terraria's tenth anniversary in 2021. The seed drops you straight into a Party and shows off a uniquely painted world with pink, cyan, and purple tiles.
Reddit
reddit.com › r › Terraria › comments › 1aw39jg › doing_the_celebration_seed_where_should_i_build
Doing the celebration seed. Where should I build the main ...
We cannot provide a description for this page right now
Terraria Community
forums.terraria.org › home
Terraria Community Forums
June 28, 2023 - Since that time, over 64 million Terrarians across the globe have accepted the challenge - to traverse the dangerous biomes of Terraria in search of fortune, glory, and the defeat of the nefarious Moon Lord.To say we appreciate each and every one of you would be the understatement of all time. Quite simply, your support is what keeps Terraria alive, vibrant, and growing. Here’s to many more years of Terraria! In celebration, we have released the latest in our “Retro Terraria” collection on Steam: Terraria 1.3 - Lunacy!
Facebook
facebook.com › groups › 466204930960760 › posts › 1673414870239754
How to get the celebration seed in Terraria?
We cannot provide a description for this page right now