Add the sword to the game using the GECKĬreate the sword in Blender and GIMP Make the sword's shape.Create the textures and normal maps in GIMP.The main steps to create a sword for Fallout 3 are: If you only want to change the textures of an existing sword or change its properties and bonus, just skip the first part of the tutorial. This tutorial shows all the main steps you need to follow to create a sword from scratch for Fallout 3. 3.4 Add the sword to the game using the GECK.3.1.4 Create the textures and normal maps in GIMP.3.1 Create the sword in Blender and GIMP.