- Update 2.15d: Hotfix #3 - 28 September 2026
- Addition: Microphones to all headsets- Improvement: Two-enemy patrols are now less frequent- Improvement: Security systems can now only be destroyed by shooting their control panels- Fix: Grenade throw trajectory prediction on the tac-map and when using Quick Orders- Fix: Trees on the “Kozol-Tai Mountains” map using the wrong collision setup- Fix: Enemy spawn collision issues near the escalators on the “Mall of Eden” map- Fix: Weather ambient sounds being too loud- Fix: A table from certain buildings being visible on the tac-map on the “Al-Jan Province” map
- Update 2.15c: Hotfix #2 - 21 September 2026
- Fix: Gunshot sound propagation being too strong indoors- Fix: Issue preventing players from zooming with binoculars and the drone while in third-person view- Fix: Issue where two new handguards did not have a grenade launcher available- Fix: Night vision goggles outline sometimes remaining visible on the tac-map on certain maps- Fix: Third-person shooting issue when using the crosshair- Fix: Some AI navigation issues
- Update 2.15b: Hotfix #1 - 14 September 2026
- Fix: Demolition objectives not being properly placed on the “Kozol-Tai Mountains” map- Fix: Player-controlled hostages not being able to interact with certain environmental objects, such as ladders- Fix: One of the stocks not being properly positioned on the “VK416” assault rifle- Fix: Tactical Phone not working properly when using the “Toggle Aiming” option- Fix: Issue where the “Manorhin MH 78” revolver was assigned the wrong cartridge- Fix: Issue where the “AVD Dragon” sniper was assigned the wrong cartridge- Fix: Issue where the “V4 Benili” shotgun was assigned the wrong cartridge- Fix: Issue where the “R90” submachine gun was assigned the wrong cartridge
- Early Access - Update 2.15 is now available - 9 September 2026
Dear Operators, Black One Blood Brothers - Update 2.15 is now available for the Early Access. This update introduces a new map, a new way to navigate, new weapons, new gears and new options for you to experiment. The community has made a lot of great suggestions about weapons and improvements. While this does not mean that Helios will implement every single one of them, we are always listening. Read the patch notes below: FEATURED- Addition: Tactical Phone- Addition: New Map - Kozol-Tai Mountains- Addition: Civilian Clothes- Addition: New Weapons and Accessories- Addition: Night Vision & Thermal Clip-Ons WEAPONS AND ACCESSORIES CONTENT- Addition: Assault Rifle - VK416- Addition: Submachine - R90- Addition: Revolver - Manorhin MH 78- Addition: Sniper - Hadrov 7- Addition: Sniper - Barrett M84- Addition: Handguard - AR I- Addition: Handguard - AR II- Addition: Handguard - AR III- Addition…
- Update 2.15 - Preview - 4 September 2026
Attention, Operators.The next major update is just around the corner. Here’s everything you need to know about what’s coming.Thank you for all your feedback. It has helped Helios continue improving the game while introducing new features and content you’ve been asking for.1. Overall ImprovementsHelios continues to improve the overall experience. Staying true to the realism and immersion that define Black One Blood Brothers, Operators who want to completely remove the HUD and on-screen indicators will now be able to navigate using the tactical phone and access mission information directly through this diegetic interface.Improvements have also been made to weapon sights, particularly sniper scopes, while issues affecting accessory placement on certain weapons have been fixed.Operators will now attempt to protect wounded teammates by deploying smoke grenades to provide cover.More improveme…
- Helios Drop #3 - A small glimpse of September - 14 August 2026
Greetings, Operators!I hope that you’re having a great summer. While it’s always a great time to disconnect and come back with renewed energy, I’m still having a busy break, with the September update in my mind. Here’s a few things that you can expect, among other things. And, given the requests and suggestions on the Discord, I believe that a lot of you will enjoy these new gears! Of course, stay tuned for more: the future is bright for the game. Until then, stay safe, and thank you for your support. Helios, out.
- Summer break is here! - 17 July 2026
Greetings, Operators,Summer has arrived, and with the heatwave comes the perfect opportunity to look back at the first half of 2026.The migration to Unreal Engine 5.7 has been the game's biggest milestone so far, bringing a wide range of significant improvements. Black One Blood Brothers is now more visually impressive, more immersive, with enhanced graphics, improved AI, smoother animations, and better pathfinding for both allies and enemies. This transition also made it possible to introduce major gameplay features, most notably tactical swimming and ladders.And that's only the tip of the iceberg. Expanding your tactical possibilities, refining existing gameplay systems, and improving Black One Blood Brothers one step at a time is a long but exciting journey. The goal has always remained the same: to deliver an increasingly immersive and realistic experience while staying true to the…
- BTS - Part 2 - Rethinking Level Design After the Migration - 10 July 2026
New Tools, New Tactical PossibilitiesGreetings, Operators. You enjoyed Helios' overview of the philosophy and vision behind Black One Blood Brothers' level design, so here's the second and final part. This time, let's explore how the migration to Unreal Engine 5.7 has impacted the game's level design.The migration to Unreal Engine 5.7 unlocked new possibilities and tactical tools for map design, including the addition of swimming and ladders, two features that had been highly requested by the community. These additions also required major underlying changes, because introducing more verticality and depth into level design means reworking the AI, pathfinding, and animation systems as well. The goal is to deliver new gameplay possibilities while maintaining an AI that feels coherent and immersive, capable of navigating these new environments naturally.Learning From Past MapsChanging level…
- Update 2.10e: Improvements - 9 July 2026
- Improvement: Arm and weapon movement while aiming- Improvement: Player movement transitions based on changes in movement speed- Fix: Player directional movement issues in certain cases- Fix: Backpacks disappearing when an operator was in water- Fix: Issue with electric lights flickering when malfunctioning
- Update 2.10d: Hotfix #2 - 7 July 2026
- Addition: New icons for certain kits- Fix: Certain clothing and gear items being available with scuba gear and visually overlapping- Fix: Weather sound volume not being adjusted according to the selected SFX volume- Fix: Rail covers on a weapon’s handguard sometimes being visible inside rifle scopes- Fix: Villa interior being too dark on the “Sullivan’s Bachelor Pad” map- Fix: Floor display not working properly on the “Sullivan’s Bachelor Pad” map- Fix: Weapon-switching animation issue in third-person view
- Update 2.10c: Hotfix - 30 June 2026
- Fix: Weapons not being properly positioned on the operator’s back-mounted gear- Fix: Incorrect operational skill values on the “Empty” squad- Fix: Bullet whiz sound not triggering at the correct time- Fix: Issue where enemy AI could fail to properly enter combat behavior
- Update 2.10b: Closed Circuit Rebreather Gear + Back-mounted operator gear - 29 June 2026
- Addition: Closed Circuit Rebreather Gear- Addition: Gear placed on the back of the tactical vest is now available in the Backpack category- Addition: Back-mounted tactical vest gear to official squads- Fix: Issue in Quick Orders where available orders were not updated when switching operators- Fix: Issue with the operator height slider- Fix: Some AI errors
- EA 2.10 IS NOW AVAILABLE - 25 June 2026
Greetings, Operators.The wait is over, Black One Blood Brothers Early Access 2.10 update is now available. You can read the full preview here. Reworked maps, new gear, AI improvements, and numerous quality-of-life enhancements... there's a lot to unpack. As you may have noticed, this marks the first step in a major overhaul of the game's level design. Our goal is to revisit maps over time, refining them when needed to provide new tactical opportunities while supporting both current and future gameplay mechanics. Great things are coming your way.Without further ado, here's the complete list of changes included in this update.FEATURED - Overhaul: “The Gabriel” map has been completely reworked and is now “Gabriel Harbor”- Overhaul: “Residential House” map has been completely reworked and is now “Residential Neighborhood”- Overhaul: “Valenwood Villa” map has been completely reworked and is…
- Early Access - Preview 2.10 - 19 June 2026
Greetings, Operators,Many of you have been eagerly waiting for this announcement, especially after the recent speculation about the release date of the next major Black One Blood Brothers update on the community Discord. Today, we're giving you a first look at what's coming in Early Access 2.10.Three Major Level OverhaulsWe've already shared a few previews across our platforms: Helios has completely reworked three maps from the ground up, bringing a whole new tactical dimension to these environments. Beyond refining progression and level design, these changes also serve to seamlessly introduce two new gameplay mechanics: swimming and ladder climbing.The Gabriel has been entirely redesigned. Now docked in a harbor, the map offers a much larger and more diverse area to infiltrate and secure, complete with an immersive port environment. It is now called Gabriel Harbor.The residential house…
- Behind the Scenes - Part 1: The Art of Tactical Level Design - 5 June 2026
Greetings, Operators,It's time for another Behind the Scenes! This time, we're focusing on level design.In a tactical FPS like Black One Blood Brothers, level design is one of the most important pillars of the experience. Every map is built like a tactical puzzle, offering diverse environments, multiple strategic approaches, and enough flexibility for players to tackle objectives in their own way, without compromising balance.Driven by his passion for tactical games, military simulations, and documentary-style storytelling, Helios also works closely with a former French Commando Marine consultant.“His feedback helps me understand what feels credible in the field and then adapt it into gameplay. I’m not trying to recreate reality 1:1, but to preserve its spirit, logic, and tension.”While real-world operations serve as an important reference, game design comes with its own constraints, es…
- Deep dive - Underwater Feature - 22 May 2026
New elements introduced in the next major update of Black One Blood Brothers. The different forms of water and underwater movement take center stage in this article, serving as a first taste of the upcoming previews for Black One Blood Brothers Early Access 2.10.Let’s dive in!Water Becomes TacticalWhile water has always been present across various maps in the game, until now it was merely part of the scenery, with no possible interaction outside of aquatic insertion cinematics. For Helios, however, it was only a matter of time before this aspect became a true gameplay element. “In a tactical infiltration game, every element should be able to create new opportunities, and water is clearly one of them.”That said, the entire system had to be designed so that water interaction would go far beyond being just a gimmick. Making the AI functional, creating the animations, adjusting underwater p…
- Updated TacMap Guide - 9 May 2026
Greetings, Operators, and welcome to the updated Tactical Map Guide. This is a crucial tool in the game. From this interface, you can define a wide range of actions. Press CAPSLOCK by default to bring it up.Once in this view, you can take full control of your operators and organize different squads based on your tactical decisions. Whether it’s based on their equipment or their skills, the choice is entirely yours. Whether you carefully plan your operation or prefer to leave room for improvisation, the map adapts to your playstyle.ControlsNo corner will remain unknown. Thanks to the different controls, you can zoom in as much as you want and study the terrain for as long as needed. Time is paused by default in the TacMap view. The panels at the bottom left provide all the options you need for both topographic and time control. You can even synchronize your phases or attacks.SquadsStill…
- Update 2.05c: Improvements - 22 April 2026
- Addition: Upgrade on Unreal Engine 5.7.4 (various fixes for GPU-related crashes)- Improvement: Visual details on certain maps- Improvement: Grass optimization on the “Residential House” map- Improvement: Optimized garden vegetation LODs on several maps- Fix: Ladders on custom maps were not working properly- Fix: Error that allowed the same kit to appear twice in the inventory- Fix: Grass scaling issue on the “Klettgau Forest” map
- Update 2.05b: Hotfix #1 - 16 April 2026
- Addition: Enemy AI now uses different fire modes depending on faction, weapon, and distance to the target- Improvement: AI spawn/despawn logic- Improvement: Grass pop-in and fade-out on the “Ancient Ruins”, “Burnwood Mansion”, and “Jin-Shu Temple” maps- Improvement: Grass pop-in and fade-out on the “Klettgau Forest” and “The Mines” maps- Fix: AI Enemies could sometimes rush the squad too aggressively during combat- Fix: Some assets from the “Burnwood Mansion” map could not be selected in the level editor- Fix: “Lost Island” map did not load correctly in the map editor- Fix: Optimized ray tracing and global illumination on the “Valenwood Villa,” “Burnwood Mansion,” and “Residential House” maps- Fix: Several landscape geometry issues on the “The Compound” map- Fix: Launching the game in DirectX 11 would display graphics options reserved for DirectX 12
- Early Access 2.05 out now - Changelog - 13 April 2026
Greetings, Operators. We're thrilled to announce that Black One Blood Brothers Early Access 2.05 is now available on Steam. Please update the game and let us know if there is any issue, as your feedback is key for Helios to improve the game.This update introduces several new features, including new ladders, improved level design on selected maps, overall AI and immersion enhancements, including new weather visual effects on your squad and equipments. Keep in mind that some features are paving the way for a bright future. You can find a detailed preview in this article.READ THE FULL PATCHNOTES BELOWFEATURED- Addition: Ladders- Addition: Clothing and equipment worn by operators and enemies are now affected by rain and snow- Addition: Firearms and accessories by operators and enemies are now affected by rain and snow- Addition: AI improvements- Addition: Visual improvements- Addition: Camp…
