Strangely I find the opposite - Themes like 'you only get one' imply a certain gameplay mechanic that I think leads to some real interesting games. You only get one..life? Second? What thing in games do we take for granted that we get multiple of? Themes like 'minimalism' are too broad for my liking - what does minimal even mean? Is it minimal because you only used 20 of the keys on the keyboard? Is it minimal because you didn't use every single feature in the Unreal Engine? I could submit any platformer ever made and say "it's minimal because it's limited to a 2D plane". It's so broad it quickly becomes meaningless.