at the risk of outing myself as a “bad game developer” here’s a project I released this year after about 5 months of development time. It’s a 40min+ narrative puzzle game containing a fairly significant amount of custom graphics and audio.
it’s 2MB (1 on linux). If I slapped together some free asset packs into Unreal over an afternoon it would dwarf this project’s size while being utterly devoid of substance.
Filesize is just not a good metric for quality.
And if you want to go even smaller, here’s a very fun 12 kilobyte roguelike: https://hundredrabbits.itch.io/donsol