
Half-Life Deathmatch: Source
Valve
Half-Life Deathmatch: Source is a recreation of the first multiplayer game set in the Half-Life universe. Features all the classic weapons and most-played maps, now running on the Source engine.
Year 21
May 1, 2026 - Aug 25, 2026
Tracked sources for Half-Life Deathmatch: Source were limited between 2026-05-01 and 2026-08-25, with only 2 verified changes captured in this window. The recorded activity centers on Security and stability improvements and Fixed asset loading issue for custom maps on Linux and sits between Added 64-bit Support on 2025-02-18 (system) and no later tracked updates in the current dataset, making this a light but still readable period in the game's history.
- Verified activity: 2026-08-24 - Security and stability improvements; 2026-08-24 - Fixed asset loading issue for custom maps on Linux.
- What stands out: The period is defined more by a small number of isolated updates than by a large roadmap beat or expansion-sized release.
- Before this window: The closest earlier tracked activity was Added 64-bit Support on 2025-02-18 (system).
- After this window: No later tracked activity is present in the current dataset.
Year 20
May 1, 2025 - May 1, 2026
Year 19
May 1, 2024 - May 1, 2025
Half-Life Deathmatch: Source launched several significant updates on February 18, 2025, including 64-bit support and Steam networking capabilities, enhancing the overall gameplay experience. The game now defaults to native resolution and includes new UI options for high-resolution screens.
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Gameplay Enhancements: Players now experience a smoother launch in native resolution instead of 640x480. The default server name for listen servers now conveniently includes the player's name.
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UI/UX Improvements: The update added UI scaling for high-resolution screens and introduced a borderless window option in video settings to enhance user experience.
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Network Upgrades: Support for Steam networking was added, improving connectivity and matchmaking capabilities.
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Visuals Refresh: The update incorporated bicubic lightmaps and radial fog, both taken from the Half-Life 2: 20th Anniversary Update, enhancing the game's visual fidelity.
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System Support: The game introduced 64-bit binaries, ensuring better compatibility and performance on modern systems with 64-bit operating systems.
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Gameplay Fixes: Numerous bug fixes were implemented, including improvements to player base velocity sync, corrections for breakable props not gibbing correctly, and various prediction fixes for player movement and animations.
Year 18
May 1, 2023 - May 1, 2024
Year 17
May 1, 2022 - May 1, 2023
Year 16
May 1, 2021 - May 1, 2022
64-bit Support arrived on July 2, 2021, automatically launching 64-bit binaries on 64-bit operating systems. The same update added Steam Networking, upgraded rendering with Bicubic Lightmaps and Radial Fog, and focused heavily on prediction and display improvements rather than new maps or modes.
- 64-bit Support: Client-side Prediction Fixes reduced jank and rollback, while fixes for player movement, weapon idle animations, viewmodel sway, position updates, walking on props, and Player’s Base Velocity Sync Issues improved client/server consistency. Client-side Entities Trigger Local Prediction Errors was also corrected so certain errors remained local.
- Steam Networking: Added Steam networking support alongside the Borderless Window Option, UI Scaling for High-Resolution Screens, native-resolution startup, and listen-server names that included the player’s name.
- Bicubic Lightmaps and Radial Fog: Added both visual features from the Half-Life 2: 20th Anniversary Update and fixed Breakable Props Not Gibbing Correctly.
Year 15
May 1, 2020 - May 1, 2021
Year 14
May 1, 2019 - May 1, 2020
Year 13
May 1, 2018 - May 1, 2019
Year 12
May 1, 2017 - May 1, 2018
Year 11
May 1, 2016 - May 1, 2017
Year 10
May 1, 2015 - May 1, 2016
Year 9
May 1, 2014 - May 1, 2015
Year 8
May 1, 2013 - May 1, 2014
Half-Life Deathmatch: Source Beta became available to Linux and Mac OS X players, bringing the game into a broader cross-platform test alongside its SteamPipe conversion. The beta also introduced weapon icons in death messages and restored the Glock’s 17-round magazine, while follow-up updates added audiovisual and interface refinements.
- Linux and Mac OS X beta: The Half-Life Deathmatch: Source Beta expanded platform support, with the SteamPipe content system replacing the previous delivery setup. Windows players could also opt into the SteamPipe beta through the game’s properties.
- Combat and feedback: Several named gameplay-facing changes improved weapon readability and consistency:
- Weapon Icons in Death Messages displayed the weapon involved in each kill.
- Glock ammunition was corrected to 17 bullets per magazine, matching the original Half-Life.
- Muzzle Flash effects returned to weapons after being absent.
- Crowbar hit sounds were corrected.
- Interface and audio: The beta added a handful of presentation improvements:
- Create Server was fully localized.
- Game Menu styling was updated to match other Valve titles.
- Drowning Sound Effects were added for players underwater.
- Widescreen Death Notices received a display fix.
Year 7
May 1, 2012 - May 1, 2013
Year 6
May 1, 2011 - May 1, 2012
Year 5
May 1, 2010 - May 1, 2011
Year 4
May 1, 2009 - May 1, 2010
Year 3
May 1, 2008 - May 1, 2009
Year 2
May 1, 2007 - May 1, 2008
Year 1
May 1, 2006 - May 1, 2007