@retroachievements/api/src/game/models/game-rating.model.ts

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

export interface GameRating {
  gameId: number;
  ratings: {
    game: number;
    achievements: number;
    gameNumVotes: number;
    achievementsNumVotes: number;
  };
}