romhack noun 1verb 1forms 3 noun1 •A modified version of a video game, created by editing its ROM data.It's an important game, and if you're into the progression of romhacks, it's cool to see the kinds of things that [The Last Promise] did, and how it improved over time. — 2020 verb1 •To modify a video game by editing its ROM data. formsromhacked · romhacking · romhacks