diff --git a/internal/service/game.go b/internal/service/game.go
new file mode 100644
index 0000000..1ee84bf
--- /dev/null
+++ b/internal/service/game.go
@@ -0,0 +1,70 @@
+package service
+
+import (
+	"gotest/internal/repository"
+)
+
+// GameService 游戏服务
+type GameService struct {
+	repo *repository.GameRepository
+}
+
+// NewGameService 创建游戏服务实例
+func NewGameService(repo *repository.GameRepository) *GameService {
+	return &GameService{repo: repo}
+}
+
+// ListCategories 获取游戏分类
+func (s *GameService) ListCategories() (interface{}, error) {
+	return s.repo.ListCategories()
+}
+
+// ListGames 获取游戏列表
+func (s *GameService) ListGames(categoryID uint, keyword, sort string, page, pageSize int) (map[string]interface{}, error) {
+	games, total, err := s.repo.ListGames(categoryID, keyword, sort, page, pageSize)
+	if err != nil {
+		return nil, err
+	}
+	return map[string]interface{}{
+		"list":      games,
+		"total":     total,
+		"page":      page,
+		"page_size": pageSize,
+	}, nil
+}
+
+// GetGame 获取游戏详情
+func (s *GameService) GetGame(id uint) (interface{}, error) {
+	return s.repo.GetGame(id)
+}
+
+// ListHot 获取热门游戏
+func (s *GameService) ListHot(limit int) (interface{}, error) {
+	return s.repo.ListHotGames(limit)
+}
+
+// ListNew 获取新游
+func (s *GameService) ListNew(limit int) (interface{}, error) {
+	return s.repo.ListNewGames(limit)
+}
+
+// GetHomeData 获取游戏首页数据（分类 + 热门 + 新游）
+func (s *GameService) GetHomeData() (map[string]interface{}, error) {
+	categories, err := s.repo.ListCategories()
+	if err != nil {
+		return nil, err
+	}
+	hot, err := s.repo.ListHotGames(8)
+	if err != nil {
+		return nil, err
+	}
+	newGames, err := s.repo.ListNewGames(4)
+	if err != nil {
+		return nil, err
+	}
+	return map[string]interface{}{
+		"categories": categories,
+		"hot":        hot,
+		"new":        newGames,
+	}, nil
+}