Valve has released a substantial update for Deadlock, its invitation-only, technically unreleased competitive hero shooter, demonstrating continuing commitment to the project two years after its initial launch. The update includes six new heroes, a complete visual overhaul of the game's map, over 10,000 new voice lines, and numerous gameplay and accessibility improvements, signalling that the developer remains invested in the title's development despite its unusual status as an unacknowledged but widely-played game.

The update introduces Nurse Harrow, Rat King, Solomon, Deadman Danny, Baba, and Violet as playable heroes, whilst all three main lanes have received aesthetic reworkings—blue lane adopting a New York mid-century style, green lane embracing gothic aesthetics, and yellow lane featuring industrial Wall Street design. Beyond map changes, improvements include enhanced UI elements such as clearer health bars and improved stat indicators, a comprehensive ping system rework, expanded custom lobbies supporting eight spectators, and substantial accessibility features including enemy colour modification and voice-over subtitles. The sheer scale of changes—Valve's own announcement notes there are too many tweaks and additions to mention in full—underscores the developer's substantial ongoing investment in the game's development and player experience.