The Windows beta.

An independent Windows adaptation, with the portable runtime included.

Windows x64 licensed beta

US$1 one-time purchase through Polar, for 64-bit Intel/AMD Windows 10 or 11. ZIP: 68,521,073 bytes (65.3 MiB). A licence key activates one PC and Windows user. Internet is required at activation, every launch and checks every 30 minutes.

Download the complete ZIP from Polar and extract everything before opening the executable. The MIT-licensed source is available separately.

Download SHA-256 checksum

80ac19fff99604bf2a44034d7eab832943f6b63f216e8c3d50e0c549d08857c6

Included in 0.3.0

• A draggable, foldable cloth rug with roll/unroll and desktop-icon bumps.
• Peek mode, with configurable Control, Shift or Alt key.
• Fifteen rug patterns and a local custom-picture option.
• Sizes, clock-based lighting, procedural sound and volume controls.
• A shared rug across multiple monitors, with one desktop window per display.
• Local preferences, optional launch at sign-in and tray controls.
• A bundled .NET runtime and included upstream/runtime attribution.
• Polar licence activation, Windows-protected saved credentials and device deactivation.

What was checked

Model checks passed for contact, finite cloth positions, picking, dragging, roll/unroll, resize, monitor-origin translation, all rug images, custom weaving and audio generation. A fresh extraction of the 0.3.0 package opened its activation screen and rejected unlicensed desktop startup.

Licence checks using mocked Polar responses passed for activation, validation, device limits, deactivation, encrypted credentials and rejection of invalid or copied credentials. Real Polar activation and device transfer have not yet been verified.

Earlier desktop integration was checked on one Windows PC with two monitors and 21 desktop icons. Its windows stayed above desktop icons and below the foreground app. Other Windows configurations need further testing.

Known limits

• The executable is unsigned; Windows may show an unknown-publisher warning.
• ARM64 hardware has not been tested.
• The menus are English.
• Preset rugs reuse upstream preview images. The original procedural painter and exact Metal shading are not ported.
• A file picker provides custom pictures; tray drag-and-drop is not included.
• Windows shell variations, mixed-DPI display changes and Show Desktop behaviour need more testing.

This is a portable beta, not an official Windows release from the original Kilim author. Read the credits and setup guide.