How many people are playing NULL DUN right now?

NULL DUN is app 4710190 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of NULL DUN?

0 concurrent players on 15 Sep 2026.

When was NULL DUN released on Steam?

NULL DUN was released on Steam on 3 Jul 2026.

NULL DUN

11 announcements · from NULL DUN’s Steam news feed

All gamesRead every half hour while active

Everything Updates11

Game update10 Aug 2026Ver 1.3.3 UpdateThank you for playing NULL DUN. ・Global rankings unified into one all-time board on Normal difficulty ・Type "unlockall" on the title screen to unlock all scenarios ・Other bug fixes Thank you for your continued support.Game update15 Jul 2026Ver 1.3.2 UpdateThank you for playing NULL DUN. ・Added leaderboard features and improved their stability ・Performance improvements, including reduced sound effect latency ・Fixed translation issues in the R18 DLC Thank you for your continued support.

Published	Kind	Announcement	Build
14 Jul 2026, 10:00 UTC	Game update	Ver 1.3.0 Update Thank you for playing NULL DUN. ・Added leaderboards per dungeon and difficulty (Local / Global) ・Custom dungeons published on the Workshop now have their own leaderboards ・Global rankings can be switched between Weekly and All-time ・The results screen now shows your leaderboard ranks (local / global) ・Story Plus difficulty is now level-based (enemies grow stronger with each +1) ・Fixed numerous…	24198407
12 Jul 2026, 00:47 UTC	Game update	Ver 1.2.0 Update Thank you for playing NULL DUN. ・Reorganized the Settings screen into tabs (General / Help / Contact) ・Added a fullscreen toggle ・You can now open the keyboard settings from the in-dungeon settings ・Revamped the How to Play help and added a link to the Steam discussion board ・Added a confirmation dialog to the Quit button on the title screen ・Adjusted the attack power of the first-area boss (Go…	24165723
10 Jul 2026, 07:42 UTC	Game update	Update v1.1.0 is now live Thank you for playing NULL DUN. Update v1.1.0 is now live. ■ New Features - Added "Allow Copying" to Custom Dungeons. Subscribers can copy permitted dungeons and edit / publish them as their own - BGM and floor themes can now be set per floor range. You can also choose the title screen music ■ Fixes - Fixed the card "Divine Bind" affecting a different area than displayed - Fixed other issues in…	24141172
10 Jul 2026, 06:49 UTC	Game update	Free Adult DLC "18+ Adult Content" Now Available Thank you for playing NULL DUN. The adult DLC "NULL DUN - 18+ Adult Content" is now available, free for owners of the base game. ・Eight story scenes from the main game are replaced with fully explicit (R18) versions ・Includes newly drawn R18 CGs, with subtitles in 6 languages ・Once installed, the scenes switch to their R18 versions automatically, and can be replayed anytime from the recollectio…	—
9 Jul 2026, 23:42 UTC	Game update	Ver 1.0.4 Update Thank you for playing NULL DUN. ・Added gamepad (controller) support — you can play with a controller alone, from the title screen all the way through the dungeon ・On-screen input hints are shown per screen and switch automatically as you move between keyboard and controller ・Built for the XInput (Xbox) layout; also works with various controllers through Steam Input Thank you for your continued…	24136188
8 Jul 2026, 05:31 UTC	Game update	Ver 1.0.3 Update Thank you for playing NULL DUN. - Added key rebinding options (Settings screen) - Fixed a bug where pressing buttons during a boss-floor intro scenario could skip the boss fight and advance past the final floor - Fixed a bug where HP would not recover when clearing a boss floor - Fixed a bug where enemies took no damage while spamming movement with auto-attack enabled - Other bug fixes Thank yo…	24103017
5 Jul 2026, 21:53 UTC	Game update	Ver 1.0.2 Update Thank you for playing NULL DUN. ・Bug fixes	24064124
5 Jul 2026, 19:41 UTC	Game update	Ver 1.0.1 Update Thank you for playing NULL DUN. ・Custom Dungeon feature enhancements ・Other bug fixes	24062971

Published

Kind

Announcement

Build

14 Jul 2026, 10:00 UTC

Game update

Ver 1.3.0 Update

Thank you for playing NULL DUN. ・Added leaderboards per dungeon and difficulty (Local / Global) ・Custom dungeons published on the Workshop now have their own leaderboards ・Global rankings can be switched between Weekly and All-time ・The results screen now shows your leaderboard ranks (local / global) ・Story Plus difficulty is now level-based (enemies grow stronger with each +1) ・Fixed numerous…

24198407

12 Jul 2026, 00:47 UTC

Game update

Ver 1.2.0 Update

Thank you for playing NULL DUN. ・Reorganized the Settings screen into tabs (General / Help / Contact) ・Added a fullscreen toggle ・You can now open the keyboard settings from the in-dungeon settings ・Revamped the How to Play help and added a link to the Steam discussion board ・Added a confirmation dialog to the Quit button on the title screen ・Adjusted the attack power of the first-area boss (Go…

24165723

10 Jul 2026, 07:42 UTC

Game update

Update v1.1.0 is now live

Thank you for playing NULL DUN. Update v1.1.0 is now live. ■ New Features - Added "Allow Copying" to Custom Dungeons. Subscribers can copy permitted dungeons and edit / publish them as their own - BGM and floor themes can now be set per floor range. You can also choose the title screen music ■ Fixes - Fixed the card "Divine Bind" affecting a different area than displayed - Fixed other issues in…

24141172

10 Jul 2026, 06:49 UTC

Game update

Free Adult DLC "18+ Adult Content" Now Available

Thank you for playing NULL DUN. The adult DLC "NULL DUN - 18+ Adult Content" is now available, free for owners of the base game. ・Eight story scenes from the main game are replaced with fully explicit (R18) versions ・Includes newly drawn R18 CGs, with subtitles in 6 languages ・Once installed, the scenes switch to their R18 versions automatically, and can be replayed anytime from the recollectio…

—

9 Jul 2026, 23:42 UTC

Game update

Ver 1.0.4 Update

Thank you for playing NULL DUN. ・Added gamepad (controller) support — you can play with a controller alone, from the title screen all the way through the dungeon ・On-screen input hints are shown per screen and switch automatically as you move between keyboard and controller ・Built for the XInput (Xbox) layout; also works with various controllers through Steam Input Thank you for your continued…

24136188

8 Jul 2026, 05:31 UTC

Game update

Ver 1.0.3 Update

Thank you for playing NULL DUN. - Added key rebinding options (Settings screen) - Fixed a bug where pressing buttons during a boss-floor intro scenario could skip the boss fight and advance past the final floor - Fixed a bug where HP would not recover when clearing a boss floor - Fixed a bug where enemies took no damage while spamming movement with auto-attack enabled - Other bug fixes Thank yo…

24103017

5 Jul 2026, 21:53 UTC

Game update

Ver 1.0.2 Update

Thank you for playing NULL DUN. ・Bug fixes

24064124

5 Jul 2026, 19:41 UTC

Game update

Ver 1.0.1 Update

Thank you for playing NULL DUN. ・Custom Dungeon feature enhancements ・Other bug fixes

24062971