How to get A Rare Realm Achievement

To get this really easy achievement You just need to enter a world with a Secret Seed.

Secret world seeds explanation:

These are world seeds which have been discovered as secret easter eggs that generate worlds with strange or unique features. Unlike regular world seeds, which affect only the usual world structure, secret seeds can produce worlds with characteristics that would not be attainable through normal world generation, i.e., they can affect the game's mechanics while playing in that world. For instance, they may change enemy statistics and behavior, item drops, graphics, THEME MUSIC (which is great), and more. - Terraria Wiki

1. Drunk World

In this seed, both Evil biomes will generate, as well as both variants of any ore that comes in two varieties. The Party Girl replaces the Guide as the starting NPC, and the Dungeon entrance is now generated under a Living Tree painted brown.

While generating:
- Generation descriptions and tips become random numbers that change every tick (except when "Placing traps").
- The background shows a Glowing Mushroom biome, with clouds that resemble Redigit's head. The moon moves backward and
resembles a smiley face. Once the world finishes generating, it is possible to go back to the main menu with these effects still visible.
- The outline of the progress bar rapidly flashes between Corruption and Crimson.
- The Console Title music plays, instead of the normal Title Screen music.
- The Terraria logo spins out and disappears along with the version number.
- The time of the day is always night, and it never turns a day.

World icon:

- The world icon of a drunk world shows a tree infected with both world evils.

Pre-Hardmode world icon.



Hardmode world icon.




World Seed:

05162020
---------------
5162020

2. Not the bees

This seed generates a world dominated by bee-themed biomes and bee-related items and structures.
Most of the world is replaced with the Jungle biome, with Hive and Honey Blocks found in abundance, and Larvae spawn throughout the world. The Merchant replaces the Guide as the starting NPC. He will sell the Furnace as per usual in the Jungle.

While generating:
- All generation descriptions say "Generating bees".

World icon:

- The world icon of Not the Bees world is a Rich Mahogany surrounded by Bees.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

not the bees
------------------
not the bees!

3. For the worthy

This special world's features aim to drastically increase the difficulty of the game.

All enemies' contact damage, health, and coin drop rates are increased, in addition to the world difficulty multiplier, by their standard amount in a normal world. After that, the damage is increased by another 1/3 (33.33%). Damage from ranged attacks is typically left unchanged.

Bunnies (even placed) and Demons have a 2/3 (66.67%) chance to be replaced with Explosive Bunnies and Voodoo Demons, respectively. The Demolitionist replaces the Guide as the starting NPC.

There are also many other changes to world generations and game mechanics. For instance, some water pools throughout the world are replaced with lava. Pots and trees may drop lit Bombs that shortly explode, instead of their usual items. Skyware Chests are replaced with locked Gold Chests but they still have their respective loot.

Bosses also receive changes to the size and/or AI that make battles much more difficult.

While generating:

- All generation descriptions and tips are spelled backwards.

World icon:

- The world icon of a "For the worthy" world is a Yellow Willow tree.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

for the worthy

4. Celebrationmk10

This seed celebrates Terraria's tenth birthday, on May 16, 2021.

The player's spawn point is on the beach of one Ocean. Andrew the Guide, Whitney the Steampunker, Yorai the Princess, a Party Girl, and an Angora Town Bunny will also spawn there and a Party immediately starts. A majority of the world is painted in bright colors.

When You die you burst into confetti

Items in chests always have a "best" modifier such as Menacing or Legendary.

Two unique enemies can be encountered in this seed:

The Jungle Mimic can be found in the Hardmode Jungle.
Golden Slimes can rarely spawn.

The chance of obtaining rare items such as the Rod of Discord and developer items is substantially increased, the Traveling Merchant always sells 2 extra items, and the Princess sells rare items such as the Slime Staff and Discount Card.

While generating:

- All generation descriptions and tips become pink.
- The Underground Hallow music will be played.

World icon:

- The world icon of a Celebrationmk10 world is a Pink Sakura tree with a bowknot.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

Celebrationmk10
-------------------------
celebrationmk10
-------------------------
05162011​
-------------------------
5162011
-------------------------
05162021
-------------------------
5162021

5. The Constant

This seed is part of the crossover with Klei Entertainment's Don't Starve Together.

It introduces hunger and darkness mechanics that make the early game especially challenging. Marble biomes with statues and Spider Caves will generate on the surface, and Cacti will damage the player.

The entire game uses a dark shader that gives the game a gloomier look. Items exclusive to the Don't Starve crossover content are more likely to drop.

While generating:

- The generation description "Generating wavy caves" is added.
- A constant shader that significantly darkens the screen will be applied.

World icon:

- The world icon of a Constant world is an Evergreen from Don't Starve.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

constant
----------------
theconstant
----------------
the constant
----------------
eye4aneye​
----------------
eyeforaneye

6. No traps

This seed includes significantly more traps than a normal world. It also contains new traps, including the Bouncy Boulder, the Life Crystal Boulder, and the Venom Dart Trap.

While generating:

- The generation description "Placing traps" is replaced with "Not placing traps".

World icon:

- The world icon of a No traps world is identical to the regular icon, with Wire coming from the tree's bottom.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

no traps
-------------
notraps

7. Don't dig up

This seed flips the usual order of player progression through biomes by having the player spawn in the central part of the Underworld. Above that are, in order, a Glowing Mushroom biome, an underground version of the Surface biomes, the Underground layer, the Cavern Layer, and then the true surface which is the Evil biome, without a sun.

A flat Ash Block "island" is generated in the central part of the Underworld, with Ash Trees growing and lava not spawning at all. Mimics now spawn in pre-Hardmode, but drop Gold Chest loot during this period instead. Plus, slimes have a chance to contain Fallen Stars as their bonus drop, and they can also spawn from broken Pots (such ones will always contain a Fallen Star). In addition, Lava slimes do not generate lava upon death in Expert Mode and above.

The Tax Collector replaces the Guide as the starting NPC.

While generating:

- The Terraria logo rotates and flips upside down.
- The background turns into the starry sky background of Space.
- The Corruption music will be played, regardless of world evil.

World icon:

- The world icon of a Don't dig up world is an Ash Tree.

Pre-Hardmode Corruption world icon.



Pre-Hardmode Crimson world icon.



Hardmode Corruption world icon.



Hardmode Crimson world icon.



World seed:

don't dig up
----------------
dont dig up​
----------------
dontdigup

8. Zenith Seed/Get Fixed Boi/Everything Seed

This seed is a combination of drunk world, Not the bees, For the worthy, Celebrationmk10, The Constant, No traps, and Don't dig up seeds.

It also contains unique features, including the boss Mechdusa[terraria.wiki.gg], which replaces the mechanical bosses in progression, as well as features like Crispy Honey Blocks that burn the player and release Lava when mined.

While generating:

The generating screen combines features of the other seeds:

- The outline of the progress bar rapidly flashes between Corruption and Crimson.
- Most generation descriptions and tips are displayed backwards, except for "Not placing traps".
- The shader effect of the Constant seed will be applied.
- The Terraria logo rotates and flips upside down.
- The background turns into the starry sky background of Space.
- The Otherworldly Space music will be played.
- The cursor becomes the "smiley moon" seen during drunk world's generation. Any meteor shower comets in the background that hit the moon will be reflected, making a cat sound (same as Meowmere's projectiles) and the sound of coins being picked up at the same time.

World icon:
The world icon of a Get fixed boi world is a flickering image that shows multiple versions of the standard tree icon, with different combinations of colors.

World seed:

get fixed boi
----------------
getfixedboi

Ending

I hope more Secret Seeds will be added in the feature. For now thats it!

Byee!

[ReyTar did]

Nevermind, found it. It was for Terraria 9th birthday reference

[ReyTar did]

What's the reference for Drunk World seed is? 05162020 is appeared to be a date : May 16th 2020

[Mystery Guest]

Why are the bosses smaller in Celebrationmk10?

[Pawtomics]

hi9

[yodatown45]

celebration also when you die you burst into confetti

[DoomRaptorr]

Mechdusa is what you get when you glue the mechanical bosses together

[cranetron]

thanks,nedded it

[Callie]

thanks heaps :D

[Captain Polioro]

Thank you so much!

[ramen]

awesome thanks