A new world record speedrun of Half-Life, completed in 6:26.133 by the SourceRuns team, done on Hard difficulty in 1226 segments, utilizing the "save warp" glitch.

On the 4th of May, 2016, only 3 days after the release of the Half-Life 2: Done Quicker speedrun, Rama discovered a new, game-breaking glitch known as "save warping". 3 months later, once the use of this glitch in real-time speedruns became more prominent, shar sought out to begin a new segmented speedrun of Half-Life, with the goal of beating the previous Half-Life world record of 20:41 by abusing the "save warp" glitch. The original time estimate clocked in at just below 20 minutes.

In the project's infancy, the runner, "hlstuff", created some handy tools that simplified the routing process. This made the discovery of potential skips involving the save warp glitch much easier and faster. Shortly following, once the "wrong warp" glitch was discovered by Centaur1um, we quickly learned that the majority of the game could be skipped. Thanks to the hard work from those involved in the routing process, and hlstuff's "Save Warp Tool", we were able to bring the expected time down to a shocking 7 minutes.

Our biggest obstacle was retaining morale and motivation, despite early expectations of how extreme this speedrun turn out. Due to segments requiring near-perfection for warps, or generally being very short, many runners/SourceRuns Members expected this run to be completely unwatchable, possibly even unenjoyable to the viewers. This run was made possible due to the dedication of those few runners who put in the massive amount of work and hours, progressing trivial warping sections of the run, to bring us to this final product. Despite everything, the project went inactive for 7 months once we reached the last map of Lambda Core (This was around June of 2017), which caused us to miss our 2017 deadline as listed on the trailer.

However, despite all difficulties, and almost 2 years later, we have finally managed to finish the project and we are excite to finally show off our hard work!

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Technical details:

This run was performed on a clean, unmodded Steam version of Half-Life using the latest build (6153) at the time of commencement (August, 2016) on default settings. This version has a 170% speed cap, meaning that if the player tries to jump with their velocity exceeding 544 ups (units per second), their speed resets back to 353 ups. To avoid the speed cap, we use a scripted ducktapping technique, instead of bunnyhopping with high velocity.

This run heavily abuses the "save warp" glitch. A brief explanation is provided in the intro. For a more detailed explanation video, check out:
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This run uses scripting via in-game console. The most common scripts are:
Autojumping
Ducktapping and Duckspam
+use spam
180º turn script (for quick gauss boosting)
Scripts providing warp chain execution

For better segment recording functionality, autojumping and ducktapping scripts, additional HUD features and more accurate timing this run utilizes Bunnymod XT tool made by YaLTeR. More info: [ Ссылка ]

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Download the high quality 60 FPS and 120 FPS videos here:
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Timesheet:
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Temporary live commentary of the entire run can be found here:
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Runners, in order of total amount of completed segments:

shar - 1012 segments
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d0t - 199 segments
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nin_talal - 4 segments
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ProtoAus - 3 segments
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zeta - 3 segments
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waezone - 2 segments
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Maxam - 2 segments
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qckdth - 1 segment
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Enjoy!
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