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Released in 2006, Penumbra Tech Demo is a presentation of the graphics and physics engine developed by Frictional Games. Despite being 'just' a tech demo, it manages to be a well crafted horror FPS game. It is available for free download here.

PenumbraTechDemo   PenumbraTechDemo

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Single-segment: 0:01:58.21 by 'FPSDemoSpeedruns'

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Author's comments:

I'm pretty happy with this run. Have not been able to beat it yet, after quite a few attempts, but I'm sure 1:57 is at least possible with the route strat I've developed here. There are several tricky spots in the run, with the most noteable ones probably being the steam valve, the flying creature, and the gas can on the shelf. Making a sharp turn with the game's heavy mouse accel can also suddenly send your run to the recycle bin. As with all of my runs, they are viewable on my YouTube channel(FPSDemoSpeedruns), with frame-perfect timing/timers added.

Run time (without loads) - 1:58 and 6/60 frames.
Run time (with loads) - 2:19 and 27/60 frames.

Thanks for watching! :]

Single-segment with Large-skip glitches: 0:00:20.90 by 'FPSDemoSpeedruns'

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Author's comments:

Hello! This is my first attempted run verification, and my first time beating a WR run! :D Had been working on a glitchless run of this demo, until I found out about Bart de Waal's SDA run in 2010 with the locker glitch.

Key improvements in my run, besides a faster time in each room, are the faster final room route and faster door code trick at the 1st door. The final door can often give you a hard time, but the 1st room is where the demon of this run lies. Estimated run attempts: ~1,000-2,000.

Shout out to all the Greats at The-Elite.net for being trailblazing speedrun Heroes, to Karl Jobst & RWhiteGoose for spreading the gospel of speedrunning through passionate storytelling & detailed record archive retrieval, and to everyone out there trying to score their first WR run! <3 If you would like to see more of my runs, check out my YouTube (FPSDemoSpeedruns).

Run time (without loads) - 0:20 and 52/60 frames.
Run time (with loads)     - 0:28 and 0/60 frames.

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