Racing down a rough rock tunnel that jinks left and right, two spiralling rails pulsing with light.
Racing down a rough rock tunnel that jinks left and right, two spiralling rails pulsing with light.
In the app you can adjust the colours. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Rail Tunnel in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Rail Tunnel FAQ
How do I set Rail Tunnel as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Rail Tunnel in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Rail Tunnel as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Rail Tunnel plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Rail Tunnel free?
Rail Tunnel is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Rail Tunnel a video loop?
No. Rail Tunnel is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Rail Tunnel slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Rail Tunnel costs next to nothing in everyday use.
Which Macs does Rail Tunnel run on?
Rail Tunnel needs macOS Tahoe 26 or later.
