The hyperlinks for downloading the sK1 color-palettes packs are deadlinks as of July-2022, so offer alternative non-deadlink download links
A TEMPORARY SOLUTION:
I have 2 links from which you can download the .gpl palette-format color-palette pack offered on the sK1 website (you can use sK1-project's uniconvertor 2 CLI tools to convert all of these color-palette files into one of the other color-palette file-formats for use with other graphics applocations which use other color-palette file-formats!):
You are free to add these alternative download links to the official sK1 website's section listing the color-palettes packs for bulk downloading...
P.S. Another good resource for downloading color-palletes is http://lospec.com 's section with hundreds of pixel-art-oriented color-palettes as well as http://opengameart.com , http://pixeljoint.net , http://deviantart.com , and http://colourlovers.com , etc. Apps like AdobeAIR-based ShoeBox and PickleApp (you may need to change OS date to an earlier date in order to install the now-sorta-obsolete last official version of AdobeAIR... then change the date back to the current year after installing AdobeAIR and maybe those listed apps as well) and many freeware and abandonware graphics-editing apps also feature some nice packs with nice built-in color-palettes (see a list of such apps in the 'ultimate list' .txt over at my GitHub.com project http://github.com/sahwar/Bulogos - similar to the 'awesome' GitHub compilation-lists github repositories with hyperlinks to curated apps and resources).
THE PROBLEM:
The hyperlinks for downloading the sK1 color-palettes packs are deadlinks as of July-2022, so offer alternative non-deadlink download links
A TEMPORARY SOLUTION:
I have 2 links from which you can download the .gpl palette-format color-palette pack offered on the sK1 website (you can use sK1-project's uniconvertor 2 CLI tools to convert all of these color-palette files into one of the other color-palette file-formats for use with other graphics applocations which use other color-palette file-formats!):
https://web.archive.org/web/20200610170645/https://downloads.sk1project.net/palettes/v1.0/palette-collection_1.0_GPL.zip
https://www.mediafire.com/file/kpbnjjiggni0omv/palette-collection_1.0_GPL.zip/file
You are free to add these alternative download links to the official sK1 website's section listing the color-palettes packs for bulk downloading...
P.S. Another good resource for downloading color-palletes is http://lospec.com 's section with hundreds of pixel-art-oriented color-palettes as well as http://opengameart.com , http://pixeljoint.net , http://deviantart.com , and http://colourlovers.com , etc. Apps like AdobeAIR-based ShoeBox and PickleApp (you may need to change OS date to an earlier date in order to install the now-sorta-obsolete last official version of AdobeAIR... then change the date back to the current year after installing AdobeAIR and maybe those listed apps as well) and many freeware and abandonware graphics-editing apps also feature some nice packs with nice built-in color-palettes (see a list of such apps in the 'ultimate list' .txt over at my GitHub.com project http://github.com/sahwar/Bulogos - similar to the 'awesome' GitHub compilation-lists github repositories with hyperlinks to curated apps and resources).