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

Warhammer 40,000: Battlesector

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]

Deeds of the Fallen DLC | Vlog #1 - Map Design

[p]Welcome to the first episode of our behind-the-scenes vlog on Warhammer 40,000: Battlesector – Deeds of the Fallen. In this chapter, we dive into the art and strategy of Map Design. Discover how our team crafted the immersive battlefields that bring the grimdark universe of Warhammer 40,000 to life. [/p][p][/p][p]Join us on this journey through the war-torn landscapes that set the stage for epic clashes.[/p][p][/p]

Deeds of the Fallen DLC | Vlog #1 - Map Design

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

Warhammer 40,000: Battlesector - 1.05.275 - 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 1.5.264[/p][p][/p]

General

  • [p]This update fixes several bugs and issues and adds expanded functionality to the Crusade game mode[/p]
  • [p]Added New Skirmish map for SP and MP: Defence of Eonis[/p]
  • [p]First steps to updating how enemy armies are selected for game modes like Crusade and Planetary Supremacy to try and reduce instances of massively overpowering enemy armies at low player level (more to come on this in the future)[/p]

Crusade

  • [p]Rework of the level up rewards. There are now 40 upgrades divided in common and rare.[/p]
    • [p]NOTE: Old save files will load, but your upgrades will be reset and must be rechosen. If you load a Battle Save then your units will temporarily have no upgrades.[/p]
  • [p]Upgrades are filtered for Melee and Ranged only upgrades to reduce instances of useless upgrades.[/p]
  • [p]Added the ability to reroll upgrades by spending Requisition points.[/p]
  • [p]Added new map layouts to existing map theme: Bastion, Incursion and Necron Ruins[/p]
  • [p]Added new map theme: Forest Clearing[/p]
  • [p]Updated Boss Battles to require the elimination of both the Boss and the accompanying Army[/p][p][/p]

Balance

Adepta Sororitas

  • [p]Castigator now gives correct momentum reward on death[/p]
  • [p]Blessed Onslaught no longer stacks all attacks if you select a single target[/p]
  • [p]Empowered Sacred Healing now gives +70Hp immediately to all models in a unit and then +75HP split between the unit models on subsequent turns[/p]

Astra Militarum

  • [p]Added Disembarked Transport status effect that gives -5% ranged accuracy for units that are dropped by Valkryie[/p][p][/p]

Bug Fixes

Crusade Mode

[p]Fixes for:[/p]
  • [p]Biome Tile not appear under Boss Pillar[/p]
  • [p]Boss Tile is not selectable[/p]
  • [p]Save&Load cause flags and playermarker on the tile to disappear[/p]
  • [p]Level Up Reward assigned to Units is different from the selected one[/p]
  • [p]Clicking proceed without selecting an upgrade always select the middle one regardless of the selected one in the UI[/p]
  • [p]CriticalChance and RangedDamage (for transport Unit) powerUp, they were using the wrong status effect[/p]
  • [p]Issues with Gamepad interface on level up panel[/p]
  • [p]Reduce Cost don't have Description[/p]
  • [p]Tooltip Increase Requisition Cost say Health instead of Cost[/p]

Deeds of the Fallen

  • [p]Fixes for issues where objective markers didn’t respawn on save game load[/p]
  • [p]Wrath of the Ecclesiarcy gives +25% Crit Chance, not +0.25%[/p]

General

[p]Fixes for:[/p]
  • [p]Bastion of the Faith was retaining extra stacks when it shouldn’t[/p]
  • [p]Selected loadout wouldn't transfer properly after adding a unit to the army[/p]
  • [p]Reduced SFX count for Zephyrim and Seraphim to reduce overwhelming noise[/p]
  • [p]T’au AI will now correctly target units which have been Markerlit[/p]
  • [p]Allowing the From the Sky achievement to be unlocked outside of the Age of Crimson Dawn campaign[/p]
  • [p]Occasional issue where “charge” skills (like Devastating Charge) would not trigger their final attack correctly[/p]
  • [p]Ground based enemy AI units should no longer try to walk through enemies, thus suppressing themselves[/p]
  • [p]Siege battles didn’t always end when all enemy units defeated[/p]
  • [p]Melta Mines were sometimes invisible to all players[/p][p][/p]
[p][dynamiclink href="https://store.steampowered.com/app/1295500/Warhammer_40000_Battlesector/"][dynamiclink href="https://store.steampowered.com/app/3577600/Warhammer_40000_Battlesector__Deeds_of_the_Fallen/"][/p]

Warhammer 40,000: Battlesector - 1.05.264 - Patch Notes

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.

Changes since 1.5.257

General


  • This is a bug fix / issue fix update following the patch release for Skulls 2025 which added Deeds of the Fallen and Crusade mode.
  • There will be more balance updates and improvements to the new Crusade mode in the coming months.

Balance



Crusade


  • Corrected army size for Boss Battles
  • Corrected the Tyranid starting army to be 1000 points
  • Various balance changes for the Crusade level ups

Deeds of the Fallen


General


  • Moved Castigator unit unlock to be after Mission 4
  • Added Sister Superior Power Sword upgrade to Selicia’s tech tree

Mission 2


  • The Inspiration Status Effect on the Garrison Battle Sisters now lasts for the entire mission

Mission 3


  • The Inspiration Status Effect on the Battle Sisters now lasts for the entire mission

Mission 5


  • The Defiance Status Effect now lasts for the entire mission once it has been applied

Mission 6


  • Removed the Orks that spawned in the room with the Paragon Warsuit and instantly attacked, often killing the Repentia before the player could use them…

Mission 11


  • Mixed up the locations of the Weirdboyz on the map to ask the AI to use their CP powers sooner, not just to save them up for an end mission alpha strike

Bug Fixes



Crusade Mode


  • Fix for Cohesion limits not applying nor showing in battle
  • Added popup to show when insufficient requisitions
  • Updated some tooltips to improve understanding of level up awards
  • Fixed HQ units not showing CP button
  • Fixed Siege Objective showing Exterminatus goal
  • Fixed unlocked difficulty levels not being saved correctly on Xbox
  • Fix for gamepad controls to allow Warzone selection to work correctly
  • Fix for Conqueror Objective spawning in a new place on Load game
  • Fix for transport unit powerups using the wrong status effect

Deeds of the Fallen


  • Updated some textures from later missions to improve resolution
  • Fixing issue with audio volume mixing on Narrative voice lines
  • Fixing issues where some subtitles did not match the voice lines
  • Fixing issue where game UI was sometimes shown during cutscenes
  • Fixes for some issues with wrong tile traversability
  • Fix for some locations where shots could go through cover (e.g. end of mission 6)
  • Fixed Saintly Benedictions to be HP buff per model
  • Fix for some interaction markers not being restored on save/load

General


  • Fix for Sister Verity mission objectives not proceeding correctly in Age of Crimson Dawn
  • Fix for Choppa Boyz not having all their barks
  • Fix for Blood Angel’s Lieutenants spawning when they shouldn’t (may not be 100%, please let us know if he still arrives)


https://store.steampowered.com/app/1295500/Warhammer_40000_Battlesector/
https://store.steampowered.com/app/3577600/Warhammer_40000_Battlesector__Deeds_of_the_Fallen/