| Event | Rerun | Synopsis | Medals | OST | Gallery | Trivia |
Ideal City: Endless Carnival or simply Ideal City (IC) is the twentieth[note 1] major event, fourteenth[note 2] Side Story, and the second Carnival event in Arknights.
Operations[]
Clear 1-10 to access the IC operations.
| Underground Sightseeing | IC-ST-1 • IC-1 • IC-2 • IC-TR-1 • IC-3 • IC-4 • IC-5 • IC-6 • IC-7 • IC-8 • IC-9 • IC-ST-2 |
|---|---|
| Cultural Shock | IC-EX-1 • IC-EX-2 • IC-EX-3 • IC-EX-4 • IC-EX-5 • IC-EX-6 • IC-EX-7 • IC-EX-8 |
| Elevator Maintenance | IC-S-1 • IC-S-2 • IC-S-3 • IC-S-4 • IC-MO-1 |
| Self-Driving Cart Racetrack | IC-P-1 • IC-P-2 |
Cultural Shock operations are available from the second week, while Elevator Maintenance operations are available from the third week. Self-Driving Cart Racetrack operations are available after the player collected 6 different Self-Driving Cart Gears, with IC-P-2 available from the second week.
All IC operations are worth 37 
.
Operators[]
[Global] Savage will be given for free to players who didn't have her (through an in-game mail) by signing in for the first time from the start of the event; those who already have her will receive a 
Savage's Token to improve her Potential instead.
The following Operators will gain 50% more Trust (except from Annihilation):
- Operator Modules added for Ambusher and Hookmaster Specialists.
- The following Operators receive a new Module:
- Fartooth (DEA-Y)
- Specter the Unchained (PUM-Y)
Headhunting[]
- Main article: Headhunting/Banners/Former/2023
The second Carnival limited headhunting banner, Great Axe and Pen Nib, is featured.
- A single
Tempered into Poetry Headhunting Permit can be claimed while the Great Axe and Pen Nib banner is up. - Every day, the player can perform one headhunting pull for free at the Great Axe and Pen Nib banner. Note that the free pulls do not stack, so it must be used before the daily reset.
Recruitment[]
The following Operators are added to the recruitment pool:
Note that all current tags will be refreshed once the recruitment pool are updated.
Collectibles[]
Self-Driving Cart[]
- Main article: Ideal City/Self-Driving Cart
Photocopies of "Stranger Things"[]
All IC operations award 
Photocopies of "Stranger Things" when cleared, with more being given when the player clears the operation for the first time. Cultural Shock operations only awards Photocopies of Stranger Things when cleared for the first time.
Photocopies of Stranger Things can be exchanged for various items in the Leaping Gloompincer Market.
The best Underground Sightseeing operations to farm Photocopies of Stranger Things are IC-7, IC-8, and IC-9 due to their high 
Aketon, 
Coagulating Gel, and 
RMA70-12 drop rates, respectively.
City Forum[]
- Main article: Ideal City/City Forum
Leaping Gloompincer Market[]
The Leaping Gloompincer Market is open until February 10, 2023.
| Ware | Price | Stock |
|---|---|---|
 1 |
200 
|
1 |
1 |
240
|
1 |
1 |
280
|
1 |
1 |
320
|
1 |
1 |
360
|
1 |
 1 |
150
|
3 |
 1 |
75
|
3 |
 1 |
100
|
5 |
 1 |
40
|
10 |
 1 |
35
|
10 |
 1 |
35
|
10 |
 1 |
30
|
10 |
 |
110
|
1 |
 |
90
|
1 |
 |
90
|
1 |
 |
85
|
1 |
 |
30
|
1 |
 |
25
|
4 |
 1 |
15
|
10 |
 1 |
5
|
60 |
 1 |
15
|
15 |
 1 |
10
|
15 |
 1 |
8
|
15 |
 1 |
8
|
15 |
 5K |
7
|
120 |
 2 |
5
|
30 |
 2 |
3
|
50 |
 2 |
1
|
150 |
 1 |
4
|
25 |
 1 |
2
|
50 |
 1 |
4
|
20 |
 1 |
3
|
30 |
 1 |
3
|
30 |
 1 |
3
|
25 |
 1 |
3
|
25 |
 1 |
2
|
40 |
 1 |
6
|
4 |
 10 |
2
|
200 |
20 |
1
|
Unlimited |
Welcome to the Underground Login Event[]
From January 13, 2023 to January 27, 2023, login to the game for 10 days to claim the following rewards.
| Day 1 |
| ||
|---|---|---|---|
| Day 2 |
| ||
| Day 3 |  200  5 | ||
| Day 4 | 10  30 | ||
| Day 5 |  1  20 | ||
| Day 6 | 200  5 | ||
| Day 7 |  1  5 | ||
| Day 8 | 10 20 | ||
| Day 9 | 1 20K | ||
| Day 10 |  1 200 |
Store[]
[Global] The double bonus for 
Originite Prime packs will be reset from the start of the event.
The following packs are available in the Packs Store:
| Pack | Content | Price |
|---|---|---|
Giant Axe Chip Pack 
|
 5  8 210K |
US$2.99 |
Pen Nib Chip Pack 
|
 5  8 210K |
US$2.99 |
Duck Lord's Change Purse 
|
13 300K |
US$6.99 |
Eunectes' Parts Bags 
|
13  2 2 |
US$6.99 |
3rd Anniversary Upgrade Pack 
|
4.5K 180K 60 80 3  3 |
US$9.99 |
Senior Operator Training Pack 
|
37  1 |
US$19.99 |
3rd Anniversary Party Pack 
|
24  2 200K 20 20 2  2  2 |
US$29.99 |
3rd Anniversary Carnival Pack 
|
90 1 220K 30 40 30 30 40 4 500 |
US$49.99 |
- The Giant Axe and Pen Nib Chip Packs are available until January 27, 2023.
- All other packs are available until February 3, 2023.
- All packs can only be purchased once per account.
Outfits[]
The following outfits are available at the Outfit Store:
| New | |
|---|---|
| Old |
The Fashion Review is updated with the following outfits:
In addition, players who had purchased Gavial's Combat Medic outfit before the event will receive one 
Outfit Voucher (given as an in-game mail) due to the release of Gavial the Invincible.
Furnitures[]
The Great Aquapit Funtastic Experientorium furniture theme is available; some of its parts are awarded from Circular Square missions while others are available in the Leaping Gloompincer Market and Furniture Store.
In addition, the Sugar Pome Fairy's Banquet Hall theme now replaces Avant-Garde Arcade Hall as lucky drops from most operations, which is now available in the Furniture Store.
Miscellaneous[]
- [Global] A Senior Operator Transfer Permit can be claimed by logging into the game for the first time from when the event starts.
- [Global] New main menu theme: Celebration.
- [Global] Record Restoration added to The Great Chief Returns in January 27, 2023.
Operator Records/Paradox Simulations[]
New Operator Records and/or Paradox Simulations added for the following Operators:
| Operator | Operator Record(s) | Paradox Simulation |
|---|---|---|
| Hunter's Vision | Hunt to the Beat | |
| Warrior's Due | Faster! Stronger! | |
| In the Name of Alcohol! | Not added | |
| Hardcore Drink | Bleaklight, Riddlelight | |
| Yours Sincerely | A Moment to Recharge | |
| Anniversary | Help's Here, Want It or Not |
CV[]
New CVs added for the following Operators.
| Operator(s) | CN CV | EN CV | KR CV |
|---|---|---|---|
| Vila | – | – | |
| Liu Zhixiao | – | – | |
| Lu Xiaotong (credited as "Thea" in Global) | – | – | |
| Zhou Tong (credited as "Atom" in Global) | – | – | |
| – | Alex Tregear | – | |
| Zhaokun Liu | – | – | |
| – | Anjali Kunapaneni | – | |
| Zi Mao (credited as "Kousou Mao" in Global) | – | – | |
| – | – | Kim Hyeon-sim | |
| – | – | Kim Sae-hae | |
| – | Clare Corbett | – | |
| – | – | Jang Mi | |
| – | – | Park Ko-woon | |
| – | – | Lee Jae-hyun | |
| Yuan Weng | – | – | |
| – | – | So Yeon | |
| Lü Shuqun | – | – | |
| – | – | Sa Moon-young | |
| – | Risa Mei | – | |
| Xu Xu (credited as "Skye" in Global) | – | – | |
| – | – | Min Seung-woo | |
| Wen Liu | – | – | |
| – | – | Jung Hye-won | |
| – | – | Chae Min-ji | |
| Ruo Wu (credited as "Luttefair" in Global) | – | – | |
| – | Rebecca Hansen | – | |
| – | – | Ryu Jeom-hee | |
| – | – | Park Ji-yoon | |
| Cheng Li | – | – | |
| Fumengruowei (credited as "Tracy" in Global) | – | – | |
| – | Ben Starr | – | |
| – | Jane Jackson | – | |
| – | – | Kim Hyeon-sim | |
| – | – | Kim Ji-yul | |
| – | Dar Dash | – | |
| – | Elsie Bennett | – | |
| Xu Xu (credited as "Skye" in Global) | – | Choi Ha-ri | |
| – | – | Chang Kyug-hee | |
| KIYO | – | – |
Zeruertza Amazing Wall[]
During the event, the player will be able to pick two out of ten Beating Tickets every day, which gives 
Orundum with the highest among the picked ones being the reward (e.g. if the first Ticket gives 400 
and the second gives 800 , then the player will receive the latter).
- The possible Orundum values in each Beating Ticket are 200, 300, 400, 500, 600, 800.
- If the player receives less than 400 from the Beating Ticket, they will be able to pick a third Ticket in the next day.
- All unused Beating Ticket picks do not stack, so they must be used before the daily reset.