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Steam News8 August 20261d ago

Demo Patch v0.4.21

Updating the demo for several bug fixes: Fixed the behaviour of Ancient Tomes: Hymn to Istar, Tomida Femina Grand plan on the Mastermind now applies to a maximum of 5 buildings matching the ability description All "Core

Full notes

Full Underground Security Inc update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

5 fixes0 additions2 changes0 removals
  • Fixes
  • Gameplay
  • UI and audio
fixedFixed the behaviour of Ancient Tomes: Hymn to Istar, Tomida Femina
changedGrand plan on the Mastermind now applies to a maximum of 5 buildings matching the ability description
changedAll "Core" buildings apply 3 stacks of their respective buff matching the building description
fixedFixed a bug with displaying the priorities of Snake Nests when swapping buildings
fixedFixed a graphical bug with units when they receive multiple hits within a short interval
fixedFixed a graphical bug where finding new buildings modified the tag of existing buildings to add "unmovable"

Underground Security Inc changes

fixedFixed the behaviour of Ancient Tomes: Hymn to Istar, Tomida Femina
changedGrand plan on the Mastermind now applies to a maximum of 5 buildings matching the ability description
changedAll "Core" buildings apply 3 stacks of their respective buff matching the building description
fixedFixed a bug with displaying the priorities of Snake Nests when swapping buildings
fixedFixed a graphical bug with units when they receive multiple hits within a short interval

Updating the demo for several bug fixes:

  • Fixed the behaviour of Ancient Tomes: Hymn to Istar, Tomida Femina

  • Grand plan on the Mastermind now applies to a maximum of 5 buildings matching the ability description

  • All "Core" buildings apply 3 stacks of their respective buff matching the building description

  • Fixed a bug with displaying the priorities of Snake Nests when swapping buildings

  • Fixed a graphical bug with units when they receive multiple hits within a short interval

  • Fixed a graphical bug where finding new buildings modified the tag of existing buildings to add "unmovable"

  • Fixed a controller bug where the controller can get stuck on a single button

Source

Steam News / 8 August 2026

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