Can people not make games that are not intended to sell much? Like Passage (2008), Escape from Woomera (2004) etc, i.e. games that have a political or artistic

Can people not make games that are not intended to sell much? Like Passage (2008), Escape from Woomera (2004) etc, i.e. games that have a political or artistic purpose. I ask this as someone who doesn't play video games (never played any of these so called "Art Games").