   What does a game engine look like?
  What I mean is if a game engine is a DLL, a set of C/C++ source codes, a .lib file, or other, or anything? 
  A properly designed engine and can some if not all of the items you mentioned.  What is needed/used depends on the engine requirements and its inteded use. ;a link, scroll down, to the bottomdownload a gameengine to get an idea if u need, but there is no restriction you can make a dll, multiple dlls or whatever you want...T2k 