File:Blinking Light Patterns on the Gate in Dr. Horn's Xen Lair

Description
Lights in different colors blink in a sequence of patterns on the mysterious gate in Dr. Horn's Xen Lair. The sequence repeats every 30 seconds.

The blinking lights on the gate were first discovered in an update released on the public-beta branch on November 22, 2020 (build 5866392), a beta for Black Mesa: Definitive Edition, and are the latest in a series of changes that have been occurring on the gate since the lair and the gate were discovered in the Xen-Gonarch beta.

For more information, see https://thepizzaisalie.fandom.com/wiki/Dr._Horn%27s_Xen_Lair