Hello everyone!
Today, we’re excited to release RBWR 2.1.0, the Zone A Update, the first major update post 2.0!
Following the release of RBWR 2.0, our team immediately shifted focus to continuing the game’s modernization. While 2.0 brought major foundational changes to the game, there were still many areas of the plant that no longer met the visual and quality standards we have set for RBWR moving forward.
This update delivers a complete overhaul of Zone A, including a full redesign of the facility lobby, main hallways, and numerous miscellaneous areas throughout the zone. While this update may not introduce major new gameplay mechanics, it’s an important step in continuing the modernization of RBWR for years to come.
This update is not part of the Overhaul Series, which will continue and finish in the next update.
— — — — — UPDATE LOG — — — — —
Zone A Revamp 
We have completely rebuilt and refreshed major areas across the map!
- Completely redesigned lobby with a more lore-accurate appearance, improved lighting, and a stronger first impression for new and returning players.
- Rebuilt all hallways throughout Zone A, featuring updated architecture, higher-quality detailing, optimization, and improved visual consistency.
- Minor refreshes to Unit 01 and Unit 02 Control Rooms, redesigned rooms, updated models, cleaner visuals, and a ton of optimization!
- Dozens of miscellaneous areas modernized, replacing outdated assets and ensuring the entirety of Zone A matches the quality standards established in RBWR 2.0.
- Improved atmosphere across the entire zone, with enhanced lighting, materials, and environmental details to create a more realistic and visually consistent facility.
New Unit 02 Gauges 
We have completely rebuilt and refreshed major areas across the map!
- All Unit 02 gauges have been upgraded across the facility, including areas such as TCR, FWP, CMCR, and other Unit 02-specific locations.
- Completely remade gauge models provide a cleaner, more detailed, and more realistic appearance throughout the plant.
- Improved optimization means the new gauges not only look better, but also perform better—making this a win-win for both visuals and performance.
- Please note: The Emergency Diesel Generator (EDG) Building still uses the previous gauges. That’s intentional. We have much bigger plans for that area in the next major update.
RBMK Rework 
Revamped RBMK reactor mode, featured in both units!
- Drum Level replaces Water Level
- Recirculation flow is now required for reactor cooling
- New meltdown mechanics tied to insufficient recirculation
- New gauges for reactor overheating and steam quality
- Steam quality now affects turbine efficiency
- Updated protection logic during turbine trip conditions
RBMK Rework Additional Details
Drum Level
- RBMK mode now uses Drum Level instead of a traditional water level. This better represents how real RBMK reactors monitor water inventory, as the reactor channels contain a mixture of water and steam rather than a single water level.
Recirculation Cooling
- Reactor cooling now depends on recirculation flow. As reactor power increases, operators must provide more recirculation flow to safely remove heat from the core.
Meltdown Mechanics
- Operating with insufficient recirculation can now lead to overheating and, if left unchecked, a reactor meltdown.
New Instrumentation
- Additional gauges have been added to monitor reactor overheating and steam quality, providing operators with better awareness of reactor conditions.
Steam Quality
- Steam quality now directly impacts turbine efficiency. It is calculated using the reactor’s hidden water inventory, steam content, and water expansion to more accurately simulate real RBMK operation.
Protection Logic
- When operating in RBMK mode, reactor protection will automatically disable whenever the turbine is not synchronized to the grid. This allows recirculation pumps to remain powered during trip conditions, matching the intended operating procedure.
Revamped Onboarding/Tutorial System 
The most advanced tutorial system in the genre!
- New players now spawn in the lobby until onboarding is completed.
- Improved Site Tour with better guidance and dialogue flow. An NPC will now walk you through the facility!
- Unit 01 Startup Tutorial has been significantly improved with new safeguards and quality-of-life changes.
- Designed to create a smoother first-time player experience and improve new player retention.
Onboarding System Additional Details
Lobby Spawn
- Players who have not yet completed the tutorial will now spawn directly in the lobby, creating a more intuitive starting point.
Improved Site Tour
- Players who have not completed the facility tour will now be guided to it with a directional arrow.
Reworked Unit 01 Startup Tutorial
- Players can now begin the startup tutorial by interacting with a Proximity Prompt inside Unit 01.
- A 5-second delay has been added between dialogue progression to encourage players to read the instructions instead of rapidly clicking through them.
- Multiple safeguards have been added to improve completion rates, including:
- Automatic annunciator acknowledgements.
- Important values such as pressure and turbine RPM are clamped when necessary.
- Players can only interact with the controls currently highlighted by the tutorial, preventing accidental mistakes.
Why These Changes?
- These improvements create a much smoother onboarding experience for first-time players while helping them build confidence before entering public servers. Our goal is to increase Day 1 player retention and ensure new operators arrive with a stronger understanding of the facility.
“Plant Investor” Subscription 
A subscription that players can buy for 249 Robux/month. Perks include:
- VIP Tag: A chat tag that will denote subscription status.
- Overhead Icon: An overhead icon that will denote subscription status.
- Name Color: A special name color that will denote subscription status.
- Speed Coil: Gives access to utilize the brand new speed coil tool.
→ Tool grants the ability to run faster and break through doors. - Maxwell: Gives access to Maxwell.
- Custom Phone Number: Gives access to the CapyTac Brickphone and custom supervisor number.
- VIP Spawn: Players subscribed to VIP will spawn in a special room.
Miscellaneous Changes & Improvements
- Updated log printers. (visual improvements and backend optimizations)
- Revamped security camera system and models. Use your mouse to look around.
- Remade all* of the game’s UI, including announcements, voting, player reports, settings, etc.
- A slew of optimizations, including multiple memory leak fixes.
- New Freecam gamepass, costs 199 Robux.
- Better sounds across the game.
- Streaming Enabled support.
- Phone improvements, including NPC phone GUI for players without chat.
- New group membership requirements.
- Spinning chairs and proximity prompt seats.
- New community-made artwork.
- New animated NPCs and dialogue.
- And a whole lot more!
Notable Removals 
The following items have been deleted and removed from RBWR.
- Deleted interior of the Administration Building
- Service air system in Unit 02 - May see a return in the far future.
- Security office
- Simulation room
- Supporter offices
- Other empty/useless rooms irrelevant to gameplay
New Official Points Master Spreadsheet 
The purpose of this new spreadsheet is to provide more transparency on how points are earned and how players are penalized in RBWR.
Please locate this spreadsheet in our community server.
New Update Schedule 
With the release of 2.1.0, we’re also introducing a new goal for our approach to development moving forward.
Rather than spacing major updates sometimes 7, 8, or 9+ months apart, we plan to release one major content update each season: Spring, Summer, Fall, and Winter. This approach allows us to deliver meaningful improvements more consistently while keeping development focused and sustainable.
While plans can always change and quality will always come before deadlines, our goal is to give the community a steady stream of new content, improvements, and features throughout the year.
As always, we’d rather delay an update than rush something unfinished. But we’re excited to move toward a more predictable and consistent release cadence for RBWR.
Closing Remarks 
As always, we want to thank everyone who continues to support RBWR, whether you’ve been with us for years or just joined the community. Every update is made possible by the feedback, patience, and enthusiasm of our players.
We’re far from finished. With even larger projects already in development, we’re excited to continue expanding and improving the facility in the months ahead.
Thank you for being part of the journey!