koobas.hobune.stream
Model shows in "Game" preview, but not in actual game
Right now, I'm just laying out a design for a game. The main character will show in the "Game" preview window in Unity, but not in the game when built and ran. Example: 
Does anyone know how to fix this?
I am a little confused what you are describing. I assume that "Game" window is in fact the "Game" window. But "Preview" window. Is that the "Scene" window or the "Camera Preview" window? If you mean Scene window then i would suggest looking at your Camera and making sure the Culling masked has a check for the layer the character is on.
"Game preview window" is the Game window of the Unity editor (and probably all other Editor windows), and he can't see these objects in the actual (Android?) build.
No warnings while building? Any special shaders on the objects that are not rendered? You can also try to set the Editor quality settings to the same as your build settings, to see if that changes anything.
Unity imported the nonexistant animations from the .blend file. I set it to not import animations on the file, and it was fixed.
wild stab in the dark but you may have the tag editor only set on it.
