This specific build corresponds to a series of released on August 29, 2022, shortly after the massive Act II: Imperfect Hatred update. Core Update Details (August 29, 2022)
While you can find official update notes on the ULTRAKILL SteamDB Page or the official ULTRAKILL Wiki , users should be cautious if they encounter this file on third-party sites:
: Tweaks to the Whiplash (V2's arm), style meter mechanics, and the application of hard damage. This specific build corresponds to a series of
: Updates to the Rocket Launcher , including bug fixes and performance tuning.
: Zip files with this naming convention often appear on unofficial mirrors or piracy sites. It is generally recommended to purchase the game through official retailers like Steam or Itch.io to ensure you have the most recent, secure version. : Zip files with this naming convention often
The August 2022 period was a major milestone for the game, as it completed , bringing the total number of layers to six (Prelude through Heresy). Later updates in 2024 and 2025 have since introduced Act III and the Full Arsenal update, making the 2022.08.29 version significantly outdated compared to current gameplay. ULTRAKILL ACT 2 OUT NOW - SteamDB
This version was primarily focused on balancing and technical stability following the release of Act II on August 16, 2022. Notable changes included: Later updates in 2024 and 2025 have since
: Refinement of enemy behaviors and AI logic to ensure fair difficulty spikes in the new levels.