Easter Eggs¶

There are easter eggs on both the OptiFine website and in the OptiFine client. Some are only visible at certain dates, while others are still visible.

X-Clacks-Overhead¶

The OptiFine website returns standard HTTP headers.

In addition to the normal headers, the website also returns: x-clacks-overhead: GNU Terry Pratchett. X-Clacks-Overhead is an unofficial HTTP header to memorialize Terry Pratchett.

sp614x's birthday¶

On the main menu, the splash message will say "Happy birthday, sp614x!" if the current computer date is August 14.

Cosmetics¶

Custom Player Models¶

Custom Player Models is a feature that can change or add to the player model. Some CPMs are used seasonally.

Capes¶

Some special capes or event-related capes may be given to specific people or at specific times.

"10" Cape¶

See Anniversary capes.

Secret project capes¶

See Unknown project capes.