Secret Dungeon (raid)

This article is up to date as of version 1664f. If the current game version is later than this, the information may be outdated.

The secret dungeon is a raid consisting of 36 rooms. The goal is to find the spiral portal room, defeat the monster ????? and defeat the two bosses in the final room, Chaos and CHAOS, before the 30 minute timer runs out.

*Score formula and rewards 1/2/3 updated as of patch 1.828*

## Raid Format

This raid consists of 36 rooms, arranged in a 6-by-6 square. You enter in the bottom right corner, which will always be an empty room. The other 35 rooms include 20 rooms with normal monsters, 4 rooms with boss monsters (rare bosses !!!!! and shinki, the bridge dweller count as normal enemies), 10 treasure chest rooms that may overlap with a normal or boss room, and one room with a red spiral portal in it. Chests can be opened by clicking on them or using the shift key. All enemies in a room must be defeated before you can move. Once you find the portal room, you can click on the portal or press shift to go to the final chamber, where you fight Chaos and then CHAOS. The power of CHAOS depends on the number of chests you opened. Completion of the raid yields a number of rewards.

### Entry Limit

You may repeat the raid as many times as you would like. After the 10th entry in a given day, however, enemies give 85% less experience, coins, and pixels. Chaos and CHAOS give 80% less.

## Treasure Chests

Each treasure chest that you open gives rewards and increases your final score (see below), but increases the strength of CHAOS.

* Chest 1 will reveal in white the rooms that have some enemies left. NOTE: The portal room will remain dark grey. Rooms with unopened treasure chests will start flashing between yellow color and normal color with yellow top left corner.
* Chest 2 will reveal in red the rooms with normal enemies, in the purple rooms with bosses.
* Chest 3 will reveal in dark red the portal room.

For each chest opened, CHAOS gains:

* 60% HP
* 20% Attack
* 20% Defense
* 10% Accuracy
* 10% Evasion
* 15% Damage from his ranged attack
* 90% more HP when Healing itself
* 30% EXP Reward
* 30% Coin Reward
* 30% Pixel Reward
* 1 second of duration for status effects given

(Note: These stack additively, not multiplicatively.)

While CHAOS is not using an aura, there are additional effects that take place based on the number of chests opened:

* If 4 or more chests are opened, CHAOS may use the Blue Aura for 7 seconds, which reduces damage from all attacks to 1 while it is active (pre-crit and boss damage multipliers). The odds of this aura activating are about 50% per second (at 40fps).
* If 6 or more chests are opened, CHAOS may use the Green Aura 6 seconds, which causes attacks to heal him while it is active.  Damage will be dealt as normal, but he will then recover 3x the damage he just took. The odds of this aura activating are about 30% per second (at 40fps).
* If 8 or more chests are opened, CHAOS may use the Red Aura for 7 seconds, which causes his attacks to deal 2x damage while it is active. All of his attacks do a minimum of 666,666 damage (reduced only by Rest) under this aura. The odds of this aura activating are about 20% per second (at 40 fps).
* If 10 chests are opened, CHAOS may use the Black Aura for 6 seconds, which causes him to harm you by 30% percent of your current HP whenever you damage him while it is active.  This cannot kill you but may reduce your HP to 1. The odds of this aura activating are about 20% per second (at 40 fps).
* On GIGA mode, all of these auras are possible regardless of the number of chests. Furthermore, if 6 chests have been opened, there is a chance (roughy equal to the chance of red aura), that CHAOS may use RAINBOW aura for 5 seconds, which activates green, red, and black auras simultaneously.
* The base cooldown to use an aura is 13 seconds. This is reduced by about 0.2 seconds per chest opened. These times assume 40 frames per second.

### Regular Chest Rewards

 10 | A random piece of Holy Glory armor OR Dark Angel armor, with duration 7 days on casual, permanent on hardcore. (95% chance for Holy Glory, 5% chance for Dark Angel; 100% chance for Dark Angel if in Worst Moon mode), 1 Crystal of Rarity, 1 Crystal of Ultimate Rarity

Each chest also has ChestNumber% chance to give Regular Boost Potion.

## Score and Rewards

### Raid Score

Upon beating CHAOS, you will receive a score.  It is calculated as follows:

# Score
Difficulty
Chests
∗
20

(

3
N
10
B

)

∗

(

time(s)
180

Chests

)

{\displaystyle \text{Score} = \text{Difficulty} + \text{Chests} \* 20 + \left(3N+10B \right )\* \left(\frac{\text{time(s)}}{180}+ \text{Chests} \right )}

For a GIGA Raid, the formula is:

# Score
2500
Chests
∗
100

(

3
N
11
B

)

∗

(

time(s)
360

Chests

)

{\displaystyle \text{Score} = 2500 + \text{Chests} \* 100 + \left(3N+11B \right )\* \left(\frac{\text{time(s)}}{360}+ \text{Chests} \right )}

N: Normal Rooms Cleared (max 20)

B: Boss Rooms Cleared (max 4)

time(s): Seconds Left (max 1805 in normal, 3605 in GIGA)

Chests: Chests Opened (max 10 in normal, 15 in GIGA)

Difficulty is the sum of all modes that apply from this table:

 Hardcore
 Apocalypse
 GIGA

GIGA requires Hardcore and Apocalypse, so it's effectively a difficulty score of 2500.

The anti-curse potion reduces the right-most terms (normal + boss rooms cleared times remaining seconds + chests) in the score equation above by 80% and removes the middle term for opened chests.

### Rewards

Upon beating CHAOS, you will receive up to 3 rewards based on your score.

#### Reward 1

 2100-2799 | Random piece of Dark Angel armor. The defense of this item is increased from its base by (Score / 21).

3500+ score requires clearing all rooms and defeating CHAOS in Worst Moon mode on Casual with 8 chests opened and 27 minutes left, 9 chests opened and 24 minutes left or 10 chests opened and 21 minutes left. On Hardcore you can open 3 fewer chests in same time.

### Reward 2

Note: You will receive the first item on the table your score qualifies you for. You are limited to 1 unique per day - if you have received your unique for the day, you will receive the highest mystery enhancer you qualify for.

(GIGA only)
 1000-2499 | Level 8 Mystery rock (50% chance Weapon, 50% chance Armor)

### Reward 3

+ 10 \* Chests opened
+ 10 \* Chests opened
+ 100 \* Chests opened

### Other Rewards

If you are in Worst Moon mode, CHAOS armor may drop from CHAOS.  The chance of this happening is (10 + 5 \* Chests Opened)%.  This chance increases by 25% in hardcore mode and by 15% in apocalypse mode.  The unobtainium enhancement of this armor is 7 + chestsOpened, with an additional 8 in hardcore and 5 in apocalypse mode.  Therefore, 10 chest hardcore apocalypse mode has a 100% chance of dropping unobtainium enhancement 30 CHAOS armor.

Successfully beating 10 chest hardcore apocalypse CHAOS also gives you the Elixir of Greatness, a 60 minute potion that does nothing.  Its description is "A special potion that once belonged to (yourName), the greatest warrior of Anti-Idle planet. It contains all you need to become as powerful as (yourName)!"

Player also receives (150 + 15 \* ChestsOpened) Proof of Training.

### Anti-Curse Potion

It used to be possible to buy a potion called the Anti-Curse potion. Having this potion activated when you enter Secret Dungeon removes your chances of obtaining CHAOS armor, substantially lessens your score, and substantially cuts the rare and epic rate of the area while causing enemies to take more damage and deal less damage. The only way to use such a potion, however, is to have one saved from a version when it was possible to buy them.

## Timeline

September 22, 2011: Chaos project announced. [1]

October 16, 2011: Curse of the explosion. [2]

October 19, 2011: Secret BA locations discovered. Back then, the secret dungeon was a series of doors flashing in a cycle. [3]

November 20, 2011: James1011R discovers yet-to-be-released BA monsters. At this point, entering the secret dungeon caused the game to freeze. When a script is aborted, secret monsters were shown. [4]

November 28, 2011: Spooky Crypt released. [5]

December 12, 2011: Incomplete Secret dungeon released in secret save file. [6]

January 5, 2012: CHAOS sneak peek. [7]

January 20, 2012: Secret Dungeon released. [8]