Games are usually categorised as leisure software, not consumer software. Different market sector.
For example, in the UK and Europe, game developers were represented by ELSPA (the European Leisure Software Publishing Association) which specifically did not represent non-game publishers. It was ELSPA that forbade the release of non-demo products (i.e. full games) as computer magazine 'coverdisks.
Full versions of consumer software could still be distributed as their publishers weren't part of ELSPA.