@retroachievements/api/dist/user/models/user-progress.model.d.ts

A well-tested library that lets you get achievement, user, and game data from RetroAchievements.

export interface UserProgressEntity {
    numPossibleAchievements: number;
    possibleScore: number;
    numAchieved: number;
    scoreAchieved: number;
    numAchievedHardcore: number;
    scoreAchievedHardcore: number;
}
export type UserProgress = Record<`${number}`, UserProgressEntity>;