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Steam News17 December 20256mo ago

Patch v2.1.0.1

※ You cannot match with players using a different version. Please update to the latest version before playing (the network version shown at the bottom left of the title screen is v2.1.0.1). Update Details for v2.1.0.

Full notes

Full UNDERWARD update

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

What changed

1 fix1 addition4 changes0 removals
  • Server
  • Gameplay
  • Maps
  • Performance
changed※ You cannot match with players using a different version. Please update to the latest version before playing (the network version shown at the bottom left of the title screen is v2.1.0.1).
changedUpdate Details for v2.1.0.1Updated the engine version to UE5.6
addedUpdate Details for v2.1.0.1Added default placed items to the Anti-Gravity Tractor to better convey the purpose of this device
changedUpdate Details for v2.1.0.1Adjusted the difficulty of several maps in CHAOS mode
fixedUpdate Details for v2.1.0.1Fixed minor bugs and applied various optimization improvements
changedUpdate Details for v2.1.0.1That’s all for this update. We will continue striving to make the game even more enjoyable, and we sincerely appreciate your continued support!

UNDERWARD changes

changed※ You cannot match with players using a different version. Please update to the latest version before playing (the network version shown at the bottom left of the title screen is v2.1.0.1).
changedUpdated the engine version to UE5.6
addedAdded default placed items to the Anti-Gravity Tractor to better convey the purpose of this device
changedAdjusted the difficulty of several maps in CHAOS mode
fixedFixed minor bugs and applied various optimization improvements

※ You cannot match with players using a different version. Please update to the latest version before playing (the network version shown at the bottom left of the title screen is v2.1.0.1).

Update Details for v2.1.0.1

  • Updated the engine version to UE5.6

  • Added default placed items to the Anti-Gravity Tractor to better convey the purpose of this device

  • Adjusted the difficulty of several maps in CHAOS mode

  • Implemented updates related to cross-play

  • Fixed minor bugs and applied various optimization improvements

That’s all for this update. We will continue striving to make the game even more enjoyable, and we sincerely appreciate your continued support!

Source

Steam News / 17 December 2025

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