Glowing lines steered by computer players curve around the arena, leaving trails with little gaps; whoever crashes first loses the round.
Glowing lines steered by computer players curve around the arena, leaving trails with little gaps; whoever crashes first loses the round.
In the app you can adjust the players and speed. 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 Line Duel in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Line Duel FAQ
How do I set Line Duel as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Line Duel 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 Line Duel as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Line Duel plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Line Duel free?
Yes. Line Duel is Free Forever in SCRNSVRS – no account, no ads, no subscription.
Is Line Duel a video loop?
No. Line Duel 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 Line Duel 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 Line Duel costs next to nothing in everyday use.
Which Macs does Line Duel run on?
Line Duel needs macOS Tahoe 26 or later.
