Croteam simultaneously developed Serious Engine 2, the successor to their previous game engine, Serious Engine, for use in the game, and the engine is capable of many features of other advanced game engines of the time including high dynamic range rendering and light bloom.[6] The engine supports integration with both Xfire and GameSpy Arcade for multiplayer match finding. Serious Sam 2 is the only game to use the proprietary engine, though the Serious Engine 2 is available for licensing.