For development of Serious Sam: The First Encounter, Croteam developed the Serious Engine (formerly named S-Cape3D), a proprietary game engine, which, while similar to other engines at the time, was designed to render large environments and support a large number of enemies visible at any time. Serious Engine 2 was developed alongside Serious Sam 2, adding in support for a physics engine, refraction, detailed textures, and high dynamic range lighting.
