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Rasvyat Nuclear Power StationEventsRasvyat 1.0.3 Public Test Build is live
In-game event

Rasvyat 1.0.3 Public Test Build is live

Rasvyat Nuclear Power Station · published 18 Jun 2026, 05:18 UTC

All eventsPlayers around this dateRead on Steam

Hello! The 1.0.3 public test build is now available via the Steam "betas" tab and will continue to be available over the next few weeks, all the while I will be taking user feedback and possibly releasing subsequent test builds before publishing the final build.

1.0.3 (Public Test Build) Changelog

New Content

  • AR-1

  • AR-2

  • ARM

  • Various New Sensors for the AR systems

  • Easter Egg

Gameplay Changes

AZS Changes

  • AZSP is no longer restricted from use at high power

  • AZSR is no longer restricted from use at low power

  • "AZSP(R)" AZ-5 reason retired

AZM Rework

  • Re-added AZMM

  • AZMM can now be enabled and disabled

  • AZMM cannot be used over 150MWt without being triggered

  • AZM cannot be used under 80MWt without being triggered

Other Changes

  • Significantly reduced reactor stability

  • Changed the sensitivity of the channel rupture event

  • Changed the sensitivity of the "Water Decrease" annunciator

Misc changes

  • Added a cooldown to the automatic AZ-5 stinger to prevent spam

  • Minor UI changes

Bug fixes

  • Fixed a desync issue with AZS

  • Fixed an issue where some switches had misleading positions

More from Rasvyat Nuclear Power Station

Other announcements

All events
Game update19 Jun 20261.0.3 Public Test Build Revision 2Hello! Only around a day since the release of this test build and I've gotten some amazing feedback. Due to this, I've managed to put together some small changes and bug fixes that should make the update more enjoyable. Please remember that if you wish to submit feedback, either do so in the Community Discord server using the feedback, suggestions and bug reports channels, or send me an email a…Community15 Jun 2026New Public Test Build Coming SoonHello again! The state of 1.0.3 Following the recent pause / break, I've made enough progress on the 1.0.3 update to release a public test build, this is not the complete update and is still missing the tutorial and a few other things. When is the PTB coming out? I will be releasing the public test build over the next couple of days with the full list of patch notes, however it's important to s…Community12 Feb 2026Followup / ClarificationWhat did "parting ways" mean? Unfortunately a lot of people saw the phrase "parting ways" and assumed it meant I was canceling development. This is not the case, and instead purely refers to me severing my relationship with the games publisher. What is happening with RNPS development? It is being paused , NOT canceled as a lot of people were thinking (Paused meaning a couple months of inactivit…