How many people are playing Under Party right now?

Under Party has 1 players on Steam right now, with a 24-hour peak of 4 and an all-time peak of 55 on Apr 2021.

What is the all-time peak player count of Under Party?

55 concurrent players on Apr 2021.

When was Under Party released on Steam?

Under Party was released on Steam on 3 Apr 2020.

Under Party

Update cadence · public branch

RSS Follow on Discord Add alert

PICS live

207 days

Since last public build

18 Feb 2026, 06:50 UTC

—

Median interval

Pattern appears after five builds

Builds in 30 days

0 with patch notes · 0 unannounced

—

Downloaded in 30 days

Quiet · no builds in 30 days

All 2 builds since 2021 · UTC

When SekaiFrieden ships

Click a cell to filter the builds table

036912151821

Published	Title	Build
18 Feb 2026, 07:02 UTC	Update 2026.02.18. Updated the game engine to address security issues. · Added Steam Deck support. · Fixed an issue where toast messages disappeared too quickly on high refresh rate monitors. · Reduced game size to approximately one-third through resource compression. Thank you ːUnderPartySmileː	21980073
1 Apr 2021, 18:00 UTC	SWEEPING OPERATION 2 RELEASEmajor 1. SWEEPING OPERATION 2 RELEASE 2. Renewal : KEY CONFIG OPTION 3. New Option : Censorship Mode	—
28 Jan 2021, 06:31 UTC	Bug Fix Inventory Back Button Bug. Bug that occurs when moving during Remove unnecessary recovery items. When a player attacks a drone, the drone's attack cooldown is reset.	—
25 May 2020, 21:50 UTC	v.1.1.0 SWEEPING OPERATION UPDATEmajor has been updated. is a bonus mode that appears after clear the main story. has been updated. ːUnderPartyː ːUnderPartyAngryː ːUnderPartySadː ːUnderPartySmileː ːUnderPartySurpriseː will continue to advance. ▲ New attack method to be added later. Thank you.	—
13 Apr 2020, 11:57 UTC	What's New v.1.0.6major What's New v.1.0.6 DEFAULT JUMP ATTACK Himari's Action. Application examples. Thank you. ps. The gif background map is a map that will be used in future updates. (It does not appear in v.1.0.6.) + v1.0.6e 2020.04.21. - Added window mode. ( From the initial screen -> F6 , F7 , F8 ) - Changeable keyboard movement buttons ( Press the F5 key 10 times to reset the key change status. )	—
4 Apr 2020, 06:18 UTC	Controller Default Setting v.1.0.2 Controller Default Setting v.1.0.2 - The default controller settings have been changed. ※ People who have been playing games since before the patch don't change. ※ You can change the key setting in the pop-up that occurs when the game runs. ( Changing the key setting does not change the in-game guide. ːMielTearsː ) Later, we will be able to change the key settings conveniently inside the game.…	—

Published

Title

Build

18 Feb 2026, 07:02 UTC

Update 2026.02.18.

Updated the game engine to address security issues. · Added Steam Deck support. · Fixed an issue where toast messages disappeared too quickly on high refresh rate monitors. · Reduced game size to approximately one-third through resource compression. Thank you ːUnderPartySmileː

21980073

1 Apr 2021, 18:00 UTC

SWEEPING OPERATION 2 RELEASEmajor

1. SWEEPING OPERATION 2 RELEASE 2. Renewal : KEY CONFIG OPTION 3. New Option : Censorship Mode

—

28 Jan 2021, 06:31 UTC

Bug Fix

Inventory Back Button Bug. Bug that occurs when moving during Remove unnecessary recovery items. When a player attacks a drone, the drone's attack cooldown is reset.

—

25 May 2020, 21:50 UTC

v.1.1.0 SWEEPING OPERATION UPDATEmajor

has been updated. is a bonus mode that appears after clear the main story. has been updated. ːUnderPartyː ːUnderPartyAngryː ːUnderPartySadː ːUnderPartySmileː ːUnderPartySurpriseː will continue to advance. ▲ New attack method to be added later. Thank you.

—

13 Apr 2020, 11:57 UTC

What's New v.1.0.6major

What's New v.1.0.6 DEFAULT JUMP ATTACK Himari's Action. Application examples. Thank you. ps. The gif background map is a map that will be used in future updates. (It does not appear in v.1.0.6.) + v1.0.6e 2020.04.21. - Added window mode. ( From the initial screen -> F6 , F7 , F8 ) - Changeable keyboard movement buttons ( Press the F5 key 10 times to reset the key change status. )

—

4 Apr 2020, 06:18 UTC

Controller Default Setting v.1.0.2

Controller Default Setting v.1.0.2 - The default controller settings have been changed. ※ People who have been playing games since before the patch don't change. ※ You can change the key setting in the pop-up that occurs when the game runs. ( Changing the key setting does not change the in-game guide. ːMielTearsː ) Later, we will be able to change the key settings conveniently inside the game.…

—

Date	Day	Time	Patch title	Build ID	Branch	Depots	Download Δ
18 Feb 2026	Wed	06:50	Update 2026.02.18.	21980073	public	2	—
8 Nov 2021	Mon	02:48	No patch notes · unannounced build	6487233	oldversion	1	—

Under Party

When SekaiFrieden ships

Under Party

When SekaiFrieden ships

Patch notes

Builds