How many people are playing The Brookhaven Experiment right now?

The Brookhaven Experiment is app 440630 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of The Brookhaven Experiment?

3 concurrent players on 17 Oct 2026.

When was The Brookhaven Experiment released on Steam?

The Brookhaven Experiment was released on Steam on 5 Jul 2016.

Status

SteamPeaks

The Brookhaven Experiment

GameApp ID 440,630by Phosphor Games StudioReleased 5 Jul 2016

Playing now

All-time peak

21:29 UTC · 20 Oct 2026steampeaks.com

WindowsEngine —

Action VR Indie Horror Gore Violent +3 +5

Update history

A permanent record of every observed change.

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The Brookhaven Experiment Update History · SteamPeaks

Time (UTC)SourceWhat changedAddedEditedRemovedReference

16 Sep 2026

21:47:28PICSStore metadata edited——−1#38,943,343

Recorded change · 16 Sep 2026, 21:47:28 UTC

Status	Key	Previous value	New value
Removed	steam_deck_compatibility · configuration · recommended_runtimecommon.steam_deck_compatibility.configuration.recommended_runtime	proton-stable	Removed from source

Raw values

12 Sep 2026

15:48:51Achievements20 definitions added+20——Schema snapshot

Definitions added · original values preservedView all 20

Status	Key	Previous value	New value
Added	000	—	Abandoned Factory — Survive the first campaign level.
Added	001	—	Town Square — Survive the second campaign level.
Added	002	—	Laboratory Basement — Survive the third campaign level.
Added	003	—	Observatory — Survive the fourth campaign level.
Added	004	—	Storm Drain — Survive the fifth campaign level.
Added	005	—	Reservoir — Survive the sixth campaign level.
Added	006

5 Sep 2026

07:02:13PICSPublic manifest changed+145——#37,434,570

Recorded change · 5 Sep 2026, 07:02:13 UTC

Status	Key	Previous value	New value
Branches · 3
Added	Build ID on publicdepots.branches.public.buildid	—	2342763
Added	Build time on publicdepots.branches.public.timebuildupdated	—	5 Dec 2017, 21:06:36 UTC1512507996
Added	Updated time on publicdepots.branches.public.timeupdated	—	5 Dec 2017, 21:35:40 UTC1512509740
Depots · 9
Depot 228986
Added

5 Dec 2017

21:46:29NewsThe Brookhaven Experiment - 5-Dec-17 Update———Community

Community · published 5 Dec 2017, 21:46:29 UTC

The Brookhaven Experiment - 5-Dec-17 Update

This is a minor update, including the following: · Basic support for the new Windows Mixed Reality devices. These devices should play similarly to existing Vive and Oculus devices. · In supporting these new devices, we also added a "generic" path so that the game should work with devices other than Vive, Oculus or WMR. No other devices are officially supported, so we can't guarantee your experi…

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21:35:40BuildsPublic branch updated · 1 depot—~1

31 Oct 2017

22:23:04NewsThe Brookhaven Experiment - 31-Oct-17 Update———Community

Community · published 31 Oct 2017, 22:23:04 UTC

The Brookhaven Experiment - 31-Oct-17 Update

Happy Halloween, creature hunters! We realize it's been a long time since we updated The Brookhaven Experiment, so we are happy to announce the release of our Halloween 2017 Update for Steam VR. This update features the following: · New survival levels: Radio Tower and Darkholme Manor · New weapon: Falcon (crossbow) · New throwable: Auto-turret · New ammo types: Tracer and Toxic Ammo · New enem…

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8 Dec 2016

00:44:18NewsThe Brookhaven Experiment - 07-Dec-16 Update———Game update

Game update · published 8 Dec 2016, 00:44:18 UTC

The Brookhaven Experiment - 07-Dec-16 Update

Hello everybody! Just a quick update to address a few issues that came to light after our previous update was released into the wild. This update includes the following changes: - Fixed nav volumes blocking gunfire in some survival maps. - Fixed Oculus Touch tutorial controllers appearing offset and at the wrong angle. - Updated credits. Please continue to let us know if you run into any problems.

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6 Dec 2016

04:27:01NewsThe Brookhaven Experiment - 05-Dec-16 Update———Game update

Game update · published 6 Dec 2016, 04:27:01 UTC

The Brookhaven Experiment - 05-Dec-16 Update

Hello Everyone! We're happy to launch this update adding support for the Oculus Touch to The Brookhaven Experiment! Some additional improvements and fixes include: • Improved Japanese localization • Japanese VO, voiced by Atsuko Tanaka • Added Oculus Touch support • Fixed a crash that occurred on some AMD cards on startup • Fixed Windows firewall warning popping up on first run • Decreased diff…

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28 Oct 2016

22:53:46NewsThe Brookhaven Experiment - 28-Oct-16 Update———Community

Community · published 28 Oct 2016, 22:53:46 UTC

The Brookhaven Experiment - 28-Oct-16 Update

Hi everyone! Here's an update just in time to terrify yourselves and scare the candy corn out of your friends and family in The Brookhaven Experiment during Halloween! 21 Steam Achievements have been added. A wide range of minor fixes which include: - Optimization and performance improvements - Enemy pathing issues addressed (enemies getting stuck, preventing waves from ending) - Collision issu…

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31 Aug 2016

22:21:00NewsThe Brookhaven Experiment - 31-Aug-16 Update———Game update

Game update · published 31 Aug 2016, 22:21:00 UTC

The Brookhaven Experiment - 31-Aug-16 Update

Hi everyone! I am pleased to announce that we have just released a major update to "The Brookhaven Experiment." Updates and changes include: · Options screen for things like super-sampling, flashlight shadow-casting, and right vs. left-handed controls. · New difficulty levels! The "default" difficulty that you've all been playing is "Normal" difficulty; we've added "Hard" and "Apocalyptic." Set…

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19 Jul 2016

03:34:14NewsThe Brookhaven Experiment - 18-Jul-16 Update———Game update

Game update · published 19 Jul 2016, 03:34:14 UTC

The Brookhaven Experiment - 18-Jul-16 Update

Hello! Our apologies for the long delay since the last update. We added and fixed a few big issues that caused some new bugs to be exposed that had to be fixed up so we could push out a stable update. We're continuing to fix issues that our players our finding and adding new features in response to requests. More updates are in the works! Here's the list of high-level changes in this update: -…

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8 Jul 2016

22:34:59NewsThe Brookhaven Experiment - 8-Jul-16 Update———Game update

Game update · published 8 Jul 2016, 22:34:59 UTC

The Brookhaven Experiment - 8-Jul-16 Update

Just a quick update with a few more fixes and adjustments. Thanks again for all the suggestions and bug reports. We're keeping a close eye on all the posts here and making note of all the issues raised and ideas made for improvements. Here are the changes in this update: -Red damage effect has been reduced so it isn't so hard to see when hurt -Flashlight beam is now a bit brighter with a more f…

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7 Jul 2016

23:23:27NewsThe Brookhaven Experiment - 7-Jul-16 Update———Game update

Game update · published 7 Jul 2016, 23:23:27 UTC

The Brookhaven Experiment - 7-Jul-16 Update

Thank you for all the very positive and very supportive reviews. It’s great to see that so many people are enjoying the game. The feedback you’ve written and bugs you’ve reported have been tremendously helpful, please keep ‘em coming! This update fixes some of the higher priority issues that the team could quickly get to as they recover from the launch of the game and continue work on the ‘to d…

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6 Jul 2016

13:44:11NewsThe Brookhaven Experiment is out!———Community

Community · published 6 Jul 2016, 13:44:11 UTC

The Brookhaven Experiment is out!

Hey everyone! We're so excited that the game is finally live and everyone is having fun with it! Over the next several weeks, we'll be fixing things up and watching the boards to see feedback and bug reporting, so make sure to call it like you see them! Thanks for supporting the game! Here are some of what we'd like to do in the short term and long term. Short Term (next few weeks, we hope) - W…

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21 Jun 2016

15:00:18NewsLaunch pushed 1 more week to July 5th (to avoid the Steam Summer Sale)———Community

Community · published 21 Jun 2016, 15:00:18 UTC

Launch pushed 1 more week to July 5th (to avoid the Steam Summer Sale)

Hey everyone, The game is wrapping up well! We can't want for you to try all the new guns, freak out at the new monsters, battle them in all the new locations, and experience the story of The Brookhaven Experiment. There is also Endless Challenge Mode, more upgrades and gear - just tons of cool stuff on the way! BUT, it all needs to wait just one more week. Sorry for the delay. Valve has wisely…

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7 Jun 2016

18:32:42NewsThe Brookhaven Experiment is Launching June 28th!———Community

Community · published 7 Jun 2016, 18:32:42 UTC

The Brookhaven Experiment is Launching June 28th!

Here at Phosphor Games, we’ve been working hard to make The Brookhaven Experiment even more fun, terrifying and expansive than the critically acclaimed demo for the full release later this month. It’s been absolutely thrilling to develop the full version of the game with new modes, new maps, new weapons, and new monsters. In order to give you the best possible experience, we have decided to pus…

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5 Apr 2016

02:13:00NewsBrookhaven is getting bigger and launching later———Community

Community · published 5 Apr 2016, 02:13:00 UTC

Brookhaven is getting bigger and launching later

We've been working really hard to bring you The Brookhaven Experiment for a late April release. Our development has been progressing well, however, we feel that we need a little more time to work on expanding the game to be even better. It's our goal to give you a lot of amazing content beyond what the demo provides. In order to accomplish that goal, we will require a longer period of developme…

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29 Feb 2016

19:01:46News"Vive's Scariest Horror Game" -- Polygon.com———Community

Community · published 29 Feb 2016, 19:01:46 UTC

"Vive's Scariest Horror Game" -- Polygon.com

How Two Guys Made the Bones of Vive's Scariest Horror Game in Only Three Weeks Ben Kuchera gives Brookhaven a spin and chats with the developers, Jeremy Chapman and Steve Bowler! We discuss some story elements, game mechanics, and talk about how we put together Brookhaven in just three weeks!

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