What do you call a person that goes for functionality, yet not for the beauty of set things?
For example in a game, this person builds things that are well made and functioning, but lack on the creative and beautiful side.
I would call that person a Minimalist.
belonging or relating to a style in art, design, and theatre that uses the smallest range of materials and colours possible, and only very simple shapes or forms:
They don't do anything more than necessary. However, I feel that there's a better word for it.
EDIT: I think the better term for it I had on my tongue is a Pragmatic person.
pragmatic : relating to matters of fact or practical affairs often to the exclusion of intellectual or artistic matters : practical as opposed to idealistic
How about prosaic?
without interest, imagination, and excitement:
If only she'd been called Camilla or Flavia instead of the prosaic Jane.
He asked if I'd got my black eye in a fight - I told him the prosaic truth that I'd banged my head on a door.
From Collins Dictionary:
If you call someone a philistine, you mean that they do not care about or understand good art, music, or literature, and do not think that they are important.
a person regarded as smugly narrow and conventional in views and tastes, lacking in and indifferent to cultural and aesthetic values