Status
SteamPeaks
ChartsSalesUpcomingPatchesNewsCalculator
New on SteamEvery app, DLC and depot the minute Steam creates itAppsEvery app on Steam, newest change firstPackagesSubs and bundles, and what each containsDepotsDepots, manifests and install sizesTagsSteam's user tags and the games under themDevelopers & publishersCompanies and their cataloguesTechnologiesEngines, SDKs and anti-cheat found in the filesChange historyEvery PICS changelist as it lands
SignalsNineteen readings of the whole catalogueCompareAny games side by sideRecordsAll-time peaks and the days they were setReportsWeekly and monthly write-upsAlerts & newsroomWatch a game, get told when it movesSteam statusIs Steam up, right nowWeb API explorerTry the endpoints in the browser
NewsSteam's own announcements and the sales calendarCalculatorWhat a Steam account is worth, and its pile of shame
/
Sign in
/
SteamPeaks
The ultimate resource for Steam data.
ExploreChartsSalesSales and festsUpcomingPatchesNewsRecordsTrendingSignals
DatabaseAppsPackagesDepotsTagsDevelopersTechnologiesChange history
ToolsCalculatorCompareSearchAlertsSteam statusAPI
SiteMethodologyFAQDiscordSupportSign in via Steam
Not affiliated with Valve or Steam. Game names and artwork belong to their owners. All times UTC.
PrivacyCookiesFair useStatus
Hell Let LooseNewsU21 Experimental Branch is LIVE
Community

U21 Experimental Branch is LIVE

Hell Let Loose · published 4 Sep 2026, 13:16 UTC

All newsPlayers around this dateRead on Steam

Hello everyone,

The Update 21 Experimental Branch Playtest is LIVE NOW on Steam!

Jump in and test the latest additions and changes coming in Update 21, including:

  • New weapons
  • New loadouts
  • Fire-mode selectors
  • Conquest game mode
  • Armor and Anti-Tank changes

➡️ To join, head to Hell Let Loose > Properties > Betas on Steam and select Exp_Branch.Please submit your feedback here:

  • U21 Feedback Form: Hell Let Loose - Update 21 - Part 2 – Fill in form

  • U21 Bugs Form: Hell Let Loose - Update 21 - Bug Form - Part 2 – Fill in form

Read the full breakdown of everything coming in Update 21:
🔗 Blog - Dev Brief #220 | What's Coming Next? | Hell Let Loose | Hell Let Loose

Weapons

This experimental branch will include 5 new weapons:

  • The M1903A3 Springfield (US)

  • The ROKS 2 Flamethrower (Soviets)

  • The M7 Grenade Launcher for the M1 Garand (US)

  • The Schiessbecher Grenade Launcher for the Karabiner 98k (Germany)

  • The No.1 MK I Cup Discharger Grenade Launcher for the SMLE No.1 MK III EY (Britain and Canada)

For the purposes of this Experimental branch, all of the above weapons will be unlocked by default for all players to try. Come release they will be locked behind their respective loadout levels.

Rifle Grenades

As mentioned above, this update is adding Rifle Grenades, a new weapon type. They are unique in that they can swap between being used as a regular infantry weapon and a grenade launcher. Players can hold the fire select button (CAPS lock on keyboard, right d-pad on controller) to open up a radial wheel listing all available grenade types or simply tap the button to quick swap to their most recently selected grenade. Note that swapping will take some time to complete depending on if the weapon has been fired or not.The exact number of grenades available will vary depending on the role using it. The available grenades are:

  • Frag grenades, with a similar explosion radius to a regular thrown grenade

  • Smoke Grenades

  • AT grenades, with a smaller explosion radius but light armour penetration making them capable of taking out lighter tanks from the rear, structures (but not garrisons) and the tracks on medium and heavy tanks

Historically some of the grenades used would have had timed fuses, but for gameplay reasons, all of them will act as impact grenades.

Fire Selector

All weapons that historically featured fire select modes have now had that functionality implemented. You can now freely toggle fire modes on the following weapons

  • MG34

  • FG42

  • STG 44

  • BAR (fast and slow auto)

  • Thompson M1

  • Thompson M1928a1

  • Bren Gun

  • Sten Gun MK2

  • Sten Gun MK2 (Canadian)

  • Sten Gun Mk5

  • PPSH 41

Fire modes can currently be toggled by pressing Caps lock on keyboard

Loadout Changes

All factions with Rifle Grenades have received the following loadouts

Rifleman

Level 8 loadout with a Rifle Grenade with 4 Frag and 2 Smoke Grenades

Medic

Level 6 loadout with a Rifle Grenade with 6 smoke Grenades

Engineer

Level 8 loadout with a Rifle Grenade with 3 AT, 2 Frag and 1 Smoke GrenadeOn top of these, there have been several other loadout additions and alterations:

US Rifleman

  • New level 6 loadout for the US Rifleman called “Marksman”.

  • Comes equipped with a M1903A3 Springfield and an explosive ammo box.

US Tank Commander

  • US tank commander’s default loadout weapon changed to the M3 Grease Gun from the Thompson.

Default Crewman

  • The blowtorch equipment is now available on all default Crewman loadouts.

Technician Wrench

  • Added the ability to build nodes with the Technician wrench.

US Anti-tank

  • Primary weapon for the default US Anti-tank role changed from the M1 Garand to the M1 Carbine (the level 3 loadout will keep the Garand)

US Operator

  • Primary default loadout weapon changed to the Springfield M1903A3

Armour Changes

SPAS

All SPA gunner seats now have a single additional zoom level. On top of this the default SPA that spawns in each team’s HQ will now auto respawn once destroyed, similar most non heavy tanks. The time for this to happen is currently 7 minutes and 30 seconds.

More from Hell Let Loose

Other announcements

All news
Community1 Sep 2026Dev Brief #220 | What's Coming Next to Hell Let Loose?Upcoming Hell Let Loose Plans With Hell Let Loose: Vietnam taking the spotlight over the last few weeks, we also want to reaffirm our continued commitment to Hell Let Loose and share an update on what’s coming next for the game. There is still plenty on the way, including new maps, weapons, vehicles, game modes, and more. We also want to provide an update on our progress against the 2026 Roadma…Community13 Aug 2026Hell Let Loose: Vietnam is Out Now!Welcome to Hell Let Loose: Vietnam Hell Let Loose: Vietnam is officially live now across PC, PlayStation 5, and Xbox Series X|S! Whether you’ve been supporting Hell Let Loose since its original Kickstarter or you’re brand new to the franchise, we cannot wait to welcome you to the community as we enter the brutal battlefields of Vietnam. As you prepare to deploy, we highly recommend checking out…Community4 Aug 2026Dev Brief #219 | First U21 Experimental Branch Test | Weapon & Armor ChangesWhat’s in the First Update 21 Experimental Branch Playtest? Hello everyone, Welcome to our first playtest for Update 21 coming later this year. Update 21 introduces a number of new additions, alongside significant changes to several core gameplay systems that we're excited for you to get hands-on with. The Experimental Branch playtest will kick off Friday 7 August, at 6am PDT | 9am EDT | 2pm BS…