Skip to main content

On Sale: GamesAssetsToolsTabletopComics
Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
TagsGame Engines

What you are planning is 100% OK, and very common! Many commercial homebrew games started life as NESDev Compo games ( Twin DragonsNebs 'n DebsProject Blue). My own game, Witch n' Wiz, did exactly what you are planning: used the compo as a way to build a demo and an audience, with a planned eventual commercial release later that year.

The rule is more about ensuring that every entry is "new".