What Windows 98 actually shipped with
Open Display Properties, click the Screen Saver tab, and the drop-down held a fixed list. It changed a little depending on whether you had installed Plus! or Internet Explorer 4, but the standard set was consistent enough that most people who used the machine can still name half of it from memory.
Of that list, the ones worth rebuilding are the ones that were genuinely nice to look at rather than merely present. 3D Pipes and Mystify are the two everybody remembers; Starfield is the one people ran because it was fastest on a slow machine; 3D Maze is the one that made a Pentium sound like it was taking off.
- 3D Flower Box
- 3D Flying Objects
- 3D Maze
- 3D Pipes
- 3D Text
- Blank
- Flying Windows
- Mystify Your Mind
- Scrolling Marquee
- Starfield Simulation
- Channel Screen Saver (with Internet Explorer 4 and Active Desktop)
Why you cannot just download and run the originals
The files still exist. Search hard enough and you will find someone offering the original .scr files from a Windows 98 disc, and they will not work in any way you want them to. A .scr is a Windows executable with a different extension, compiled for a 32-bit era, and the ones with 3D in the name were written against a version of OpenGL that modern drivers no longer present in the same shape.
Even where they launch, the screensaver list they were built for has gone. Windows 11 keeps a Screen Saver Settings panel for compatibility, but the interesting entries were removed years ago and the operating system now handles idle displays by turning them off. On macOS, Linux, ChromeOS, a phone or a TV, the question does not arise at all.
The other reason is the obvious one: an executable downloaded from a nostalgia site is an executable downloaded from a nostalgia site. A web page cannot install anything, cannot survive a tab being closed, and cannot ask for administrator rights. That is the whole argument for rebuilding them rather than hosting them.
What these are, exactly
Each one is drawn from scratch in the browser, in code, to behave like the original. Pipes grows and turns and resets the way it did; Mystify bounces four-cornered polygons off the screen edges with a colour-cycling trail; Starfield accelerates outward from a vanishing point. Where the original was rendered in 3D and this one is flat, the page for it says so rather than implying otherwise.
Nothing here is copied artwork. The After Dark toasters in particular are trademarked, so the toasters on this site are original shapes that fly the same way — the homage is the motion, not the pixels. The behaviour is the part that was worth preserving, and the behaviour is the part that is free to preserve.
How to run a Windows 98 screensaver full screen
Open any of them and press F, or use the fullscreen button on the player. F11 does the same job on a desktop browser and hides the browser toolbars as well, which is what you want on a display that will be left running. Escape brings the page back.
For a screen you intend to leave alone — a second monitor, a TV, a projector at the front of a room — turn off the sleep timer in the operating system first. A browser tab cannot stop the OS from blanking the display, and any page claiming it can is guessing. Anything you change in the settings is written into the address bar as you change it, so the version you set up is a link you can bookmark or send on.