Two versions of the game were released as freeware in late June 2006 through the Utrecht School of the Arts website. There was a Dutch version, called "De Blob", and an English version, called "The Blob" ("de" is the Dutch cognate of "the"). It was created using the OGRE graphics engine, the FMOD audio engine and the Open Dynamics Engine for physics and collision detection. The developers also stated that they had used 3D Studio MAX for modelling level designs, Adobe Photoshop for textures, and Reason and Sound Forge for audio.