Steam News3 October 20258mo ago

Patch 0.20.3 R2 - Unity Runtime Security Exploit Patch

There are no new features. This is purely a security update to protect players systems. Please note the game version is not updated on the menu and remains at 0.20.1.

Full notes

Full A-Spec First Assault update

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

What changed

0 fixes1 addition2 changes0 removals

Security
Gameplay

addedThere are no new features. This is purely a security update to protect players systems. Please note the game version is not updated on the menu and remains at 0.20.1. The demo has also been patched and the version number remains at 0.13.3.

changedIf you have a favourite game played in Unity and worried that it has the exploit you can patch it yourself. Its really simple to use. Download. Run the exe, point it to the path where the Unity game exe is and press the patch button. https://unity.com/security/sept-2025-01/remediation

changedEarly Access development updateI'll take this opportunity to state that development continues with A-Spec. Chapter 5 gameplay is scripted and functional, requiring some fleshing out with story dialogue, further asset development, with gameplay balancing and testing before being ready. Thank you for your patience and support.

There are no new features. This is purely a security update to protect players systems. Please note the game version is not updated on the menu and remains at 0.20.1. The demo has also been patched and the version number remains at 0.13.3.

If you want to know more then this thread is from Unity aimed directly to developers: https://discussions.unity.com/t/unity-platform-protection-take-immediate-action-to-protect-your-games-and-apps/1688031

If you have a favourite game played in Unity and worried that it has the exploit you can patch it yourself. Its really simple to use. Download. Run the exe, point it to the path where the Unity game exe is and press the patch button. https://unity.com/security/sept-2025-01/remediation

Early Access development update

I'll take this opportunity to state that development continues with A-Spec. Chapter 5 gameplay is scripted and functional, requiring some fleshing out with story dialogue, further asset development, with gameplay balancing and testing before being ready. Thank you for your patience and support.

Source

Steam News / 3 October 2025

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