Crimson Assassin — an 18-second live wallpaper, ready for your Mac.
1440p • 18 sec • Others
Crimson Assassin is a 1440p live wallpaper for Mac from the Red collection in the MacWall catalog.
It is encoded at 2560x1440 (16:9) and loops every 18 seconds without a visible cut. Themes: cinematic, fantasy. Preview it above, then set it on your MacBook, iMac, or external display with MacWall.
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How to set Crimson Assassin as your Mac wallpaper
- Download MacWall for macOS (macOS 15 or later) and open it.
- Choose Set on Mac on this page, or search "Crimson Assassin" in the app.
- Pick one display or all of them. Crimson Assassin starts playing as your desktop wallpaper.
- Optional: with Pro on macOS 26 (Tahoe) or later, also use it on the Lock Screen and as a Screen Saver.
Crimson Assassin FAQ
- How do I set Crimson Assassin as my Mac wallpaper?
- Install MacWall, then choose Set on Mac on this page or search "Crimson Assassin" in the app. It plays behind your windows as a live desktop wallpaper on any connected display.
- Is Crimson Assassin a video or a still wallpaper?
- It is a video loop at 2560x1440 that repeats every 18 seconds, played with hardware decoding so it stays smooth without slowing your Mac.
- Will the Crimson Assassin live wallpaper drain my MacBook battery?
- MacWall pauses playback behind full-screen apps and when the display sleeps, so Crimson Assassin costs very little in everyday use.
- Can I use Crimson Assassin on the Mac Lock Screen?
- Yes, with MacWall Pro on macOS 26 (Tahoe) or later. Pro is a one-time $12.99 payment that unlocks the full catalog, with no subscription.
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Minimum macOS 15.0 or later