Belgian designer Gilles Augustijnen spent about eight months putting it together, having been inspired by composer Brandon Chapman's "beautiful mashup" of the two shows' themes, he wrote in the video's description.
He used a bunch of programs -- After Effects, C4D, Photoshop, Illustrator, Substance Painter, ZBrush, Fusion360 and DAZ3D -- to create the slick sequence, which depicts Daenarys with a dragon egg (remember those days?), the Iron Throne and the Night King in place of imagery from Westworld's season 2 intro.
In an email, Augustijnen told CNET that he was inspired by fellow designer Ash Thorp, who worked on effects for Ender's Game and the .
"He mentioned taking something that's relevant and building upon that to gain some exposure with it and showing your skills doing that," the designer wrote.
He hinted that his next project is "a new title sequence for a 'fictional reboot' of an old film," but kept the details under his hat for now.
First published April 29 at 6:23 a.m. PT.
Updated April 30 at 5:22 a.m. PT: Adds comment from Augustijnen.