Warhammer 40,000: Battlesector cover
Warhammer 40,000: Battlesector screenshot
Genre: Strategy, Turn-based strategy (TBS), Tactical

Warhammer 40,000: Battlesector

Black Legion DLC | Release date announcement

[p]The wait is almost over, Commanders.

We’re excited to announce that the next faction DLC for Warhammer 40,000: Battlesector — Black Legion — will launch on February 24th.[/p][p][/p][p][img src="https://clan.akamai.steamstatic.com/images/39808373/77ed07a697cd9357ba84780927ae6329b0390d75.png"][/p][p]Prepare to bring the might of the Warmaster’s chosen to the battlefield, with new units and new ways to dominate your enemies. [/p][p][/p][p][dynamiclink href="https://store.steampowered.com/app/3577620/Warhammer_40000_Battlesector__Black_Legion/"][/p]

Warhammer 40,000: Battlesector - Dev Diary #17 - Obscura nox incipit

[p]Warriors, it’s been a while since we updated you on how Battlesector is proceeding, so now is the time.[/p][p]
Firstly, a reminder that Battlesector was featured in December’s Slitherine Next presentation where we gave the first sight of the upcoming Black Legion faction and we also revealed our roadmap for 2026:[/p][p]
[img src="https://clan.akamai.steamstatic.com/images/39808373/01b10e28509321b858f5058bad910137df624b25.jpg"][/p][p]The Battlesector team is hard at work bringing all of these plans to fruition and we’ll have more news on each of them throughout the year ahead. For today, however, we return to the subject of Abaddon's forces, the Black Legion.[/p][p]
The ways of the warp are unpredictable at best, and whilst we had ambitions to release the faction to your beclawed hands in December last year, our machinations did not play out as we’d hoped. I can tell you that the Faction is now feature complete however, and it is in closed beta testing to ensure that we have a fantastic new force to add to Battlesector. We’ll have a release date for you very soon![/p][p]
The Black Legion store page gives some details on the units that we have selected for the faction, but we thought that you might be interested to know a little bit more about how these were decided upon.[/p][p]
[dynamiclink href="https://store.steampowered.com/app/3577620/Warhammer_40000_Battlesector__Black_Legion/"]There are many potential units for the Black Legion. Their codex is not small, and it shifts and grows as Games Workshop finds new fantastic units to bring to us all.[/p][p]
Our first long-list was 37 units from the latest codex, each of which also had a physical version available. This is important for our model making processes (see our previous dev logs on the Astra Militarum Primaris Psyker) and also so that we can agree our interpretation of that unit with Games Workshop.[/p][p]
This list was then much debated, voted upon and finally squeezed into an agreed list which featured some important elements that we want our initial faction releases to have.[/p]


Great HQ Units

[p]On the tabletop you have access to some amazing name characters and epic heroes. In Battlesector we aim to give each faction 3 to 4 “HQ” units, which can lead your forces with distinction, and also gain access to the potentially game changing CP abilities.[/p][p][/p][p]We knew from the start that we needed a Chaos Lord and a Sorcerer as iconic leaders and wielders of the powers of the warp. We then took a look at the other warlords and dark powers available and decided on two that would stand apart as distinct and unique in their own right. The Master of Executions provides something unique, a melee-focused whirlwind of death that can pose a very immediate threat to any opposition leader. And the Cultist Firebrand gave us a Chaos Cultist HQ to let players engage with their merely human side (and also gain access to a flamer!).[/p][p][/p][p][img src="https://clan.akamai.steamstatic.com/images/39808373/77ed07a697cd9357ba84780927ae6329b0390d75.png"][/p]

A Solid Core

[p]The core of the Black Legion is well settled. Chaos Terminators, Legionaries, Raptors, Chosen and Havocs each lend a very different element to a Black Legion army, but they are all recognised as the heart-beat of their infantry. We had to have them all.[/p][p]
Something that might cause discussion is that the Legionaries and Chosen have been given their own distinct roles in Battlesector, with the Legionaries wielding Bolters and grenades whilst the Chosen bring Accursed Chain Weapons and Power Weapons. Many of you will prefer to take these in different guises on the tabletop (maybe all melee, or swapping their ranged and melee specialities), but we always try to give Battlesector units a unique identity and we agreed as a team that the Chosen needed to be the ones getting stuck into the hand to hand combat.[/p][p]
Add to this the Cultist Mob and Warband, and there is a fantastic battleline that can take on any challenge.[/p][p]
I’m sure there are some of your favourites that aren’t here (Possessed? Chaos Spawn? Warp Talons?), but we only had so many spots and there’s always a chance for these units to arrive at a later date![/p][p][/p][p][img src="https://clan.akamai.steamstatic.com/images/39808373/ef984e109b2930443c3947bc4c717947caf6dd39.png"][/p]

Daemon Engines

[p]The last group are the great Daemonic Engines of war that add epic power and impact to the forces of Chaos. The Helbrute was one of the first names on our teamsheet, closely followed by the Heldrake to be our aerial support unit.[/p][p]
We chose to take only one of the Maulerfiend and Forgefiend, and with the Helbrute already getting up close and uncomfortably personal with the enemy, we selected the Forgefield with Hades Autocannon and Ectoplasma Cannon loadouts to add some extremely durable long range support.[/p][p]
Our final selections were the Chaos Rhino (absolutely selected because we loved the idea of some Power Weapon wielding Chosen and a Master of Executions being unloaded onto an exposed enemy flank!) and then the Obliterators and the Venomcrawlers. These last two not only added a great swiss army knife  of fleshmetal guns and a horrifically quick skirmisher, but they are two of our favourite kits from the tabletop in recent years![/p][p]
[img src="https://clan.akamai.steamstatic.com/images/39808373/9cde8b95d5789d3b2c39e38e05cc50dba8f71ae6.png"][/p]

Black Legion DLC – Beta Sign-Ups Now Open

[p]The forces of Chaos are gathering.[/p][p][/p][p]We’re excited to announce that beta sign-ups for the upcoming Black Legion DLC for Warhammer 40,000: Battlesector are now officially open![/p][p][/p][p]The beta will be available on Steam, and players must own the base game Warhammer 40,000: Battlesector in order to access it. Once you’ve signed up, you’ll be notified automatically when the beta goes live.[/p][p][/p][p]Sign up now here and prepare to spread Chaos across the battlefield.[/p][p][/p][p][/p][p][/p]

Warhammer 40,000: Battlesector | Black Legion showcase & Roadmap 2026

Black Legion DLC

[p]For the first time ever, we unveiled the Black Legion DLC, bringing the Warmaster’s most ruthless Chaos Space Marines into Warhammer 40,000: Battlesector.[/p][p]Fans got a full first look at units, abilities, and the sheer brutality the Black Legion will unleash when they arrive. More details and gameplay previews will follow soon—prepare your forces.[/p][p][/p]

Roadmap 2026

[p]We also lifted the veil on our 2026 roadmap, confirming two major additions coming next year:[/p]
  • [p]Ultramarines Faction – The Emperor’s finest will soon join the fray as a full, playable faction.[/p]
  • [p]New Narrative Campaign – A brand-new story experience is in development, expanding the Battlesector universe with fresh missions, characters, and strategic depth.[/p][p][/p]
[p][img src="https://clan.akamai.steamstatic.com/images/39808373/5f39e339feaebd1546966ea019fc8c7584bcc5e3.jpg"][/p]

New tournaments open for sign ups:

[p]Do not miss the chance to sign-up to two new tournaments: Domination Elimination and Dual Duals.

You can sign-up here.

The tournaments follow Swiss Tournament rules: you can find the full list of rules here.

The first round will commence on Tuesday, 16th December 2025. No further entries can be accepted after the tournament has begun. The tournaments will last 7 and 6 rounds, 11 days each. Games are paired, so each matchup will be played both ways. All you need to do is sign up, then the system will pair you with opponents and create your PBEM games. You will be notified by mail of when the tournament is starting and when it will be time to play your turns.

[/p]

Dual Duals

[p]Round Info:[/p]
  • [p]Round 1 - Mode: Strategic Command - Map: Feeding Grounds - Army Size 2000, Target 75[/p]
  • [p]Round 2 - Mode: Domination - Map: Feeding Grounds - Army Size 2000, Target 75[/p]
  • [p]Round 3 - Mode: Strategic Command - Map: Aisle of Tithes - Army Size 2000, Target 75[/p]
  • [p]Round 4 - Mode: Domination - Map: Aisle of Tithes - Army Size 2000, Target 75[/p]
  • [p]Round 6 - Mode: Strategic Command - Map: Salt Exchange - Army Size 2000, Target 75[/p]
  • [p]Round 7 - Mode: Domination - Map: Salt Exchange - Army Size 2000, Target 75[/p]
[p][/p]

Domination Elimination

[p]This is a two stages tournament with a ranking round and knockout stage. [/p][p]Match info: [/p]
  • [p]Mode: Domination - Army Size 2000 - Target 75[/p]
[p]Stage info:[/p][p]Stage 1 - Ranking match [/p][p]Stage 2 - Tournament bracket - Knock out tournament [/p][p][/p][p][dynamiclink href="https://store.steampowered.com/app/3577620/Warhammer_40000_Battlesector__Black_Legion/"][TAG-104][/p]

Warhammer 40,000: Battlesector - 1.05.331 - Patch Notes

[p]We're releasing a new update for Battlesector. As per usual, please let us know what you think of the list of changes. Your feedback is essential to keep improving the game.[/p][p align="start"][/p][p align="start"]Changes since 1.5.330[/p][p][/p][p]This patch is for PC platforms only, the issue that it fixes was not present on PlayStation or Xbox.[/p][p][/p]

Bug Fixes

General

  • [p]Fixed issue that was causing Assault Terminator Lightning Claws and Storm Shields to be rendered without textures[/p]
[p][p][dynamiclink href="https://store.steampowered.com/app/1295500/Warhammer_40000_Battlesector/"]

Warhammer 40,000: Battlesector - Black Legion DLC | Important news

[p]Players,

We wanted to inform you that the release of the upcoming Black Legion DLC for Warhammer 40,000: Battlesector has been delayed. The team is working hard to ensure the new content meets the level of quality you expect, and we appreciate your patience and support. We're sorry that the DLC won't be releasing this year as intended.

We’ll be sharing more details, updates, and a closer look at what’s coming during Slitherine Next, our live streaming event on December 9th. We hope you’ll join us as we reveal what's next for Battlesector.

Thank you for your understanding.[/p][p]
[/p]

Deeds of the Fallen DLC | Vlog #2 - Research

[p]Welcome to the second episode of our behind-the-scenes vlog on Warhammer 40,000: Battlesector – Deeds of the Fallen. This time, we explore the deep dive our team took into the lore and universe of Warhammer 40,000. From poring over codices to working closely with Games Workshop, discover how research shaped the characters and storylines of Deeds of the Fallen. [/p][p][/p][p]Get a glimpse of the creative foundations that drive the game forward.[/p][p][/p]

Deeds of the Fallen DLC | Vlog #2 - Research

[p][dynamiclink href="https://store.steampowered.com/app/3577600/Warhammer_40000_Battlesector__Deeds_of_the_Fallen/"][/p]

Warhammer 40,000: Battlesector - 1.05.297 - Patch Notes

[p]We're releasing a new update for Battlesector. As per usual, please let us know what you think of the list of changes. Your feedback is essential to keep improving the game.[/p][p][/p][p]Changes since 1.5.288[/p][p][/p]

General

  • [p]This is a patch fix update to address some issues that were added with the Deffkilla Update[/p]

Bug Fixes

  • [p]Fix for Valkyrie not returning transported units to the battlefield[/p]
  • [p]Corrected tooltip on the Reinforcements option when starting a Daemonic Incursion campaign[/p]
  • [p]Corrected Deffkilla HQ priority so more likely to be the CP ability user[/p]
  • [p]Updating some charge abilities (Furious Charge, Devastating Charge, Battering Ram) to correctly ignore pistol reaction shots[/p]
  • [p]Updated Angel's Leap to encourage the Harpy to be more active[/p]
  • [p]Fix for Righteous Aura adding an extra tile than intended[/p]
  • [p]Fix for enemy AI units being able to sometimes move through your units if they are trapped in a corner[/p]
  • [p]Updated Mission 11 of Deeds of the Fallen to reduce memory footprint and improve console stability[/p]
  • [p]Fixing terrain on Breach in the Heavenwall[/p]

Warhammer 40,000: Battlesector | 25th Slitherine anniversary update

[p]To celebrate our 25th anniversay, during Slitherine Next we have announced a new update, releasing today. On top of several fixes and balances, this new update features a new brand unit: the Deffkilla Wartrike. In order to be usable in your armies, players must own the Ork Faction DLC. [/p][p][/p][p]During the event, we talked about the origin of the game, its history and also the next steps. In case you missed the event, you can rewatch it here:[/p][p][/p][p]As per usual, please let us know what you think of the list of changes. Your feedback is essential to keep improving the game.[/p][p][/p][p]Changes since 1.5.275[/p][p][/p]

General

  • [p]Added new unit for the Ork Faction, the Deffkilla Wartrike[/p]
    • [p]This is a HQ unit for the Orks. It requires the Ork Faction DLC to be usable in your armies.[/p]
  • [p]Added new Imperial City map biome for Crusade and Planetary Supremacy[/p]
  • [p]Added 5 new T’au themed buildings to the Map Editor for players to use in their custom maps and campaigns[/p]

Crusade

  • [p]Rebalanced Enemy Army Sizes for all battles[/p]
  • [p]Added Uncommon and Legendary Level Up Upgrades[/p]
  • [p]Enemy Boss HP reduced to +100% from +200%[/p]
  • [p]Added a selection of Boss Army upgrades[/p]
    • [p]These will buff all of the other units in a Boss’ army[/p][p][/p]

Balance

  • [p]Updated Ork “Speedy Boyz” army[/p]
  • [p]Tweaks for some Crusade level ups.[/p][p][/p]

Bug Fixes

Crusade Mode

[p]Fixes for:[/p]
  • [p]Moved objective spires in Crusade mode “Siege” games to be closer to the player spawn[/p]
  • [p]Initial T’au army was larger than the initial battle size allowed[/p]
  • [p]Some Flamer units could cause an occasional game hang on level up[/p]
  • [p]Units would face the wrong way when activating capture points in Crusade[/p]

Deeds of the Fallen

[p]Fixes for:[/p]
  • [p]Mission 4 side objective does not count turns correctly after Save&load[/p]
  • [p]When Leona dies first time in mission 10 then the objective marker disappears and makes mission incompletable[/p]

General

[p]Fixes for:[/p]
  • [p]Visual fx of some Adepta Sororitas abilities, which played too quickly if gameplay time speed up was being used[/p]
  • [p]Tweaked main menu button background to aid readability[/p]
  • [p]Some tech trees were placed too far to the right on the screen, obscuring the token cost icons[/p]
  • [p]Mines no longer count as units towards location capture (like in Conqueror game mode)[/p]
  • [p]AI controlled Canoness and Sister Superior will now actually use their swords[/p]
  • [p]Clarified the description for abilities that trigger a modified charge (like Devastating Charge) and require at least 1 movement point to be used[/p]
  • [p]Issue where starting Armoured Sentinel in Crusade had Plasma Cannon, not Flamer[/p]
  • [p]Some rocks in the Defence of Eonis map were badly placed and did not match the tilemap[/p]

Warhammer 40,000: Battlesector | Defence of Eonis tournament sign-ups

[p]You still have the chance to sign-up to the new Defence of Eonis tournament which will feature the new multyplayer map:[/p]
  • [p] Defence of Eonis[/p]
[p]You can sign-up here.

The tournament follows Swiss Tournament rules: you can find the full list of rules here. [/p][p][/p][p]The first round will commence on Friday, 11th July 2025 at 11.00am GMT. No further entries can be accepted after the tournament has begun. The tournament will last 3 rounds, 11 days each. Games are paired, so each matchup will be played both ways. All you need to do is sign up, then the system will pair you with opponents and create your PBEM games. You will be notified by mail of when the tournament is starting and when it will be time to play your turns. [/p][p][/p]

Round Info:

  • [p]Round 1 - Mode: Strategic Command - Map: Defence of Eonis - Army Size 2000, Target 80 [/p]
  • [p]Round 2 - Mode: Strategic Command - Map: Defence of Eonis - Army Size 2000, Target 80 [/p]
  • [p]Round 3 - Mode: Strategic Command - Map: Defence of Eonis - Army Size 2000, Target 80[/p][p][/p]
[p][dynamiclink href="https://store.steampowered.com/app/1295500/Warhammer_40000_Battlesector/"][/p]