diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index 7f1901b8b..0d56b6417 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,11 @@
 package baseball;
 
+import baseball.game.Game;
+
 public class Application {
     public static void main(String[] args) {
         //TODO: 숫자 야구 게임 구현
+        Game game = new Game();
+        game.start();
     }
 }
diff --git a/src/main/java/baseball/game/Check.java b/src/main/java/baseball/game/Check.java
new file mode 100644
index 000000000..722822964
--- /dev/null
+++ b/src/main/java/baseball/game/Check.java
@@ -0,0 +1,41 @@
+package baseball.game;
+
+import java.util.ArrayList;
+import java.util.Objects;
+
+public class Check {
+    public boolean duplicateCheck(ArrayList<Integer> question){
+        for(int i = 0; i<question.size(); i++){
+            for(int j = 0; j<question.size(); j++){
+                // 중복 o
+                if(Objects.equals(question.get(i), question.get(j)) &&i!=j){
+                    return false;
+                }
+            }
+        }
+        // 중복 x
+        return true;
+    }
+
+    public Count checkResult(ArrayList<Integer> question, ArrayList<Integer> inputNumbers){
+        // strike ball check
+        Count count = new Count();
+
+        // 존재여부 동일성, 위치 동일성 판별
+        for(int i = 0; i<question.size(); i++){
+            for(int j = 0; j<question.size(); j++){
+                if(Objects.equals(question.get(i), inputNumbers.get(j))){
+                    if(i==j){
+                        count.countUpStrike();
+                    }
+                    if(i!=j){
+                        count.countUpBall();
+                    }
+                }
+            }
+        }
+
+        // count 객체를 return
+        return count;
+    }
+}
diff --git a/src/main/java/baseball/game/Count.java b/src/main/java/baseball/game/Count.java
new file mode 100644
index 000000000..12d04ab78
--- /dev/null
+++ b/src/main/java/baseball/game/Count.java
@@ -0,0 +1,24 @@
+package baseball.game;
+
+public class Count {
+    private int strike;
+    private int ball;
+
+    Count(){
+        strike = 0;
+        ball = 0;
+    }
+
+    public int getStrike(){
+        return strike;
+    }
+    public int getBall(){
+        return ball;
+    }
+    public void countUpStrike(){
+        this.strike++;
+    }
+    public void countUpBall(){
+        this.ball++;
+    }
+}
diff --git a/src/main/java/baseball/game/Game.java b/src/main/java/baseball/game/Game.java
new file mode 100644
index 000000000..ab0bfa979
--- /dev/null
+++ b/src/main/java/baseball/game/Game.java
@@ -0,0 +1,74 @@
+package baseball.game;
+
+import camp.nextstep.edu.missionutils.Console;
+import camp.nextstep.edu.missionutils.Randoms;
+
+import java.util.ArrayList;
+
+public class Game {
+
+    public void start(){
+
+        while(true){
+            //랜덤 숫자 배열 생성
+            ArrayList<Integer> question = makeQuestion();
+
+            //3스트라이크면 중단
+            boolean result = false;
+            while(!result){
+
+                // input
+                Input input = new Input();
+                System.out.print("숫자를 입력해주세요 : ");
+                ArrayList<Integer> inputNumbers = input.getInputNumbers();
+
+                // 스트라이크, 볼 체크
+                Check check = new Check();
+                Count count = check.checkResult(question, inputNumbers);
+
+                // 결과처리
+                Print print = new Print();
+                String printResult = print.printResult(count);
+                System.out.println(printResult);
+
+                // 종료조건 처리
+                if(count.getStrike()==3){
+                    result = true;
+                }
+            }
+
+            // restart or not
+            boolean gameResume = gameResume();
+            if(gameResume){
+                continue;
+            }
+            break;
+        }
+    }
+
+    public boolean gameResume(){
+        System.out.println("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+        String resume = Console.readLine();
+        if(resume.equals("2")){
+            return false;
+        }
+        return true;
+    }
+
+    public ArrayList<Integer> makeQuestion(){
+        ArrayList<Integer> question = new ArrayList<>();
+        for(int i = 0; i<3; i++){
+            int n = Randoms.pickNumberInRange(1, 9);
+            question.add(n);
+        }
+
+        // 중복체크 필요
+        Check check = new Check();
+        boolean isDuplicated = check.duplicateCheck(question);
+        if(isDuplicated){
+            return question;
+        }
+        return makeQuestion();
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/baseball/game/Input.java b/src/main/java/baseball/game/Input.java
new file mode 100644
index 000000000..a468d98e1
--- /dev/null
+++ b/src/main/java/baseball/game/Input.java
@@ -0,0 +1,40 @@
+package baseball.game;
+
+import camp.nextstep.edu.missionutils.Console;
+
+import java.util.ArrayList;
+
+import static java.lang.Integer.*;
+
+public class Input {
+    public ArrayList<Integer> getInputNumbers(){
+        String str = Console.readLine();
+        String[] split = str.split("");
+
+        // input check
+        if(str.length()!=3){
+            throw new IllegalArgumentException();
+        }
+        if(str.contains("0")){
+            throw new IllegalArgumentException();
+        }
+
+        // arraylist 로 변환
+        ArrayList<Integer> arr = new ArrayList<>(); // return 해줄 것
+        for(int i = 0; i<3; i++){
+            int temp = parseInt(split[i]);
+            arr.add(temp);
+        }
+
+        // 중복 check
+        Check check = new Check();
+        boolean isDuplicate = check.duplicateCheck(arr);
+
+        if(!isDuplicate){
+            throw new IllegalArgumentException();
+        }
+
+        return arr;
+    }
+
+}
diff --git a/src/main/java/baseball/game/Print.java b/src/main/java/baseball/game/Print.java
new file mode 100644
index 000000000..b28214102
--- /dev/null
+++ b/src/main/java/baseball/game/Print.java
@@ -0,0 +1,23 @@
+package baseball.game;
+
+public class Print {
+    public String printResult(Count count){
+        int ball = count.getBall();
+        int strike = count.getStrike();
+        String result = "";
+
+        if(strike==0&&ball==0){
+            result += "낫싱";
+        }
+        if(ball>0) {
+            result += ball + "볼 ";
+        }
+        if(strike>0){
+            result += strike + "스트라이크";
+        }
+        if(strike==3){
+            result += "\n3개의 숫자를 모두 맞히셨습니다! 게임 종료";
+        }
+        return result;
+    }
+}
diff --git a/src/test/java/baseball/ApplicationTest.java b/src/test/java/baseball/ApplicationTest.java
index 359aacfa4..057710c26 100644
--- a/src/test/java/baseball/ApplicationTest.java
+++ b/src/test/java/baseball/ApplicationTest.java
@@ -21,16 +21,47 @@ class ApplicationTest extends NsTest {
         );
     }
 
+    @Test
+    void 모든_경우의_수() {
+        assertRandomNumberInRangeTest(
+                () -> {
+                    run("456",
+                            "416", "412", "312",
+                            "136", "132",
+                            "145", "124", "123",
+                            "2"
+                    );
+                    assertThat(output()).contains(
+                            "낫싱",
+                            "1볼", "2볼", "3볼",
+                            "1볼 1스트라이크", "2볼 1스트라이크",
+                            "1스트라이크", "2스트라이크", "3스트라이크",
+                            "게임 종료");
+                },
+                1, 2, 3
+        );
+    }
+
     @Test
     void 예외_테스트() {
         assertSimpleTest(() ->
                 assertThatThrownBy(() -> runException("1234"))
                         .isInstanceOf(IllegalArgumentException.class)
         );
+
+        assertSimpleTest(() ->
+                assertThatThrownBy(() -> runException("023"))
+                        .isInstanceOf(IllegalArgumentException.class)
+        );
+
+        assertSimpleTest(() ->
+                assertThatThrownBy(() -> runException("112"))
+                        .isInstanceOf(IllegalArgumentException.class)
+        );
     }
 
     @Override
     public void runMain() {
         Application.main(new String[]{});
     }
-}
+}
\ No newline at end of file