OUTBREAK
Demos by Outbreak from 1997 to 2010, ported from DOS, Windows and the Dreamcast and running in the browser (WebAssembly; Attraction, Autumn Dreams, 10 years, My Diamond Mind Broken, COGS, Vintage, Grand Central, Vintage II, the Compusphere 2009 invitation, Zenit, Stress and Electrify with WebGL 2). They start with a click or a key, and all but 256b and fire play music. Space pauses (in New Years it makes the logo bounce, in Attraction P pauses), the arrow keys jump five seconds (in My Diamond Mind Broken half a second, and page up/down too), M mutes Autumn Dreams, My Diamond Mind Broken, COGS, Vintage, Grand Central, Vintage II, Compusphere 2009, Zenit, Stress and Electrify, Enter is START in Sinus Experiment (which ends it), F is fullscreen and Esc ends a demo.

Lovetro
4th at Hype 1997 · DOS
ANSI
11th at Hype 1997 · DOS
Dansdemo
1st at P^5 1997 · DOS
Saga
2nd at Icing 1997 · DOS
Sharp
1st at Yodel Conference 1997 · DOS
Supreme
1st at Hype 1998 · Windows version from 2003
Oblivion
3rd at Remedy 1998 · DOS
Muhammad
Hype 1999 · Windows version from 2003
Attraction
6th at Assembly 2000 (combined intro, with TMB) · Windows
Dangerous Outbreaks
5th at TRSAC 2001 · Windows
New Years
December 2001 · Windows
luftvarg
3rd at Hype 2002 (4k) · Dreamcast
256b
July 2002 · Dreamcast
Sinus Experiment
With Flare, August 2002 · Dreamcast
Autumn Dreams
2nd at Mainframe 2003 · Linux
fire
March 2005 (128b) · Dreamcast
10 years
Compusphere 2005 · Windows, Linux
My Diamond Mind Broken
Assembly 2005 · Windows, Linux, Mac OS X
COGS
scene.se fastcoding compo 2007 · Windows, Linux, Mac OS X
Vintage
Compusphere 2007 · Windows, Linux, Mac OS X
Grand Central
3rd at Icons 2008 · Windows, Linux
Vintage II
Compusphere 2008 · Windows, Linux
Compusphere 2009
Invitation, May 2009 · Linux
Zenit
1st at Compusphere 2009 · Windows, Linux
Stress
Evoke 2009 · Linux
Electrify
Compusphere 2010 · Windows, Linux
HEMULIANERNA
Demos by Hemulianerna, ported from Windows the same way. Voodoo Cowboy and _bsp draw everything themselves, their 3D Studio scenes too; 1990 Powah is OpenGL (WebGL 2 here), on thec's Loadrunner like 10 years. In _bsp Space and right Ctrl are the demo's own (a beat, a picture), P pauses, and it never ends: Esc does. 1990 Powah's arrows jump half a second and M mutes it.