Before Dawn is a cross platform program that has many cool screensavers
Screensavers are fun, they look cool and make you feel relaxed. While they don't serve their original purpose anymore, the prevention of burn-ins in displays, they may still add visual elements to the display when the device is not used actively.
Windows 10 comes with a bunch of pretty screensavers, of which my favorite is Bubbles. If you want more designs, check out Before Dawn.
It is an open source program that has nearly three dozen patterns to choose from. You have no control over where the application gets installed, but that's not a huge deal.
Run it, and it will appear on the system tray. Right-click on it and select Preferences to access the Before Dawn's interface.
The top right half of the window lists all screensavers that are available for selection. This includes a C64 pattern, a Blur screen mode, a webcam mode, and more. There are a couple of wacky ones, like the poop emoji, the lonely computer and the tall boy. And there's the DVD logo which bounces around the screen, I'm sure we have all spent time watching it and wondering if it will hit the corner.
It also has some serene options like Rain, Sparks, and Gradients. Before Dawn features a couple of photo screensaver options such as Astronomy photos, Hubble for which it pulls the data from NASA and the Hubble Telescope respectively.
Select something classic like the Starfield, or use a more modern one with the Emoji Starfield which is kind of cool. Though the program allows you to run a custom URL when the screensaver is triggered, this option didn't work for me.
The problem with having too many options is that you may not be able to decide which one to choose. Hit the random option, and the program will pick one for you. The left half of Before Dawn's interface displays a preview of the selected screensaver, and some of these have an additional option like changing the intensity, or in the case of the Cave Story screensaver, you can select a Balrog or Dragon flying across the screen.
Speaking of previews, head to the official demo page to see a preview of each screensaver in Before Dawn. There's something you need to know about the program, it doesn't replace Windows' screensaver, instead it runs separately in its own window, and is set to use full screen mode. Move the mouse or use the keyboard to dismiss the screensaver, and the window closes automatically.
You may set when the screensaver should be activated under the Settings section. The default value is 5 minutes, but you can set it to 1/10/15/30 minutes or an hour. The "never" option when enabled will prevent the screensaver from kicking in automatically, in which case you can use the program's tray icon (Run Now) to activate it manually. Before Dawn will put the computer to sleep after 10 minutes, but you can change this option as well.
Before Dawn is an open source program, it is written in Electron. It is available for Windows, macOS and Linux. The program isn't very responsive when it comes to switching screensavers, which maybe due to the preview rendering the graphics, nevertheless is a tad annoying.