This item was awarded to players who launched Team Fortress 2 using any Linux distribution between February 14th, 2013 and March 1st, 2013. The Tux was still obtainable in-game past the original stated date, it was not until mid to late-March that the Tux finally became unobtainable. This item is a stylized version of Tux, the Linux operating system mascot.

There are over 10,000+ known instances of this item, and all are non-tradable.