Sjoerd De Jong, also known as Hourences, is a Dutch-Belgian video game developer, level designer and the founder of Teotl Studios.

He serves as technology evangelist for Epic Games, promoting Unreal Engine 4 in the northern half of Europe.

De Jong started making levels for video games at the age of 15, when he purchased a copy of Unreal in 1999.

He has worked on several games, including Killzone, The Chronicles of Spellborn and Huxley.

[6] The studio's first project was the first-person action-adventure game The Ball, which was originally a mod for Unreal Tournament 3.