Quoting dracula.
I assume you can't use sub-surface smoothing ?
That may be a fair assumption for in game usage.
However, with at least one form, the smoothing can be made 'permanent' prior to export.
Can you recommend any tutorials specifically for games modelling.
Some low-poly tutorials not written specifically for Blender can be used with Blender, or converted, if both the functions of the other program and the equivalent work flow procedures in Blender are known.
ps: is 'modelling' spelt like this or with just one 'l' ie 'modeling' ?
'I' believe modeling is actually spelled both ways.