diff --git a/1ano/2semestre/poo/src/aula07/ex3/Ball.java b/1ano/2semestre/poo/src/aula07/ex3/Ball.java
new file mode 100644
index 0000000..c6b1c51
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/Ball.java
@@ -0,0 +1,22 @@
+package aula07.ex3;
+
+public class Ball extends MovableObject {
+    private String color;
+
+    public Ball(double initialX, double initialY, String color) {
+        super(initialX, initialY);
+        setColor(color);
+    }
+
+    public Ball(String color) {
+        this(0, 0, color);
+    }
+
+    public String getColor() {
+        return this.color;
+    }
+
+    public void setColor(String color) {
+        this.color = color;
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/Game.java b/1ano/2semestre/poo/src/aula07/ex3/Game.java
new file mode 100644
index 0000000..0858ca8
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/Game.java
@@ -0,0 +1,80 @@
+package aula07.ex3;
+
+public class Game {
+    private final Team team1;
+    private final Team team2;
+    private int team1Goals;
+    private int team2Goals;
+    private final Ball ball;
+    private final double gameDuration;
+    private double timeElapsed;
+
+    public Game(Team team1, Team team2, Ball ball, double gameDuration) {
+        this.team1 = team1;
+        this.team2 = team2;
+        this.ball = ball;
+        this.gameDuration = gameDuration * 60;
+        this.timeElapsed = 0;
+    }
+
+    public double getGameDuration() {
+        return this.gameDuration;
+    }
+
+    public double getTimeElapsed() {
+        return this.timeElapsed;
+    }
+
+    public Team getTeam1() {
+        return this.team1;
+    }
+
+    public Team getTeam2() {
+        return this.team2;
+    }
+
+    public void start() {
+        new Thread(() -> {
+            while (this.timeElapsed < this.gameDuration) {
+                this.timeElapsed += 0.1;
+                if (this.timeElapsed % 60 == 0)
+                    System.out.printf("Tempo: %d minutos", (int) this.timeElapsed / 60);
+                try {
+                    Thread.sleep(100);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }).start();
+    }
+
+    public void moveBall(double newX, double newY) {
+        this.ball.move(newX, newY);
+    }
+
+    public void moveRobot(int robotId, double newX, double newY) {
+        for (Robot r : this.team1.getRobots())
+            if (r.getId() == robotId)
+                r.move(newX, newY);
+        for (Robot r : this.team2.getRobots())
+            if (r.getId() == robotId)
+                r.move(newX, newY);
+    }
+
+    public void addGoal(Team team, int scorerId) {
+        if (team == this.team1) {
+            this.team1Goals++;
+            this.team1.increaseGoalsScored(scorerId);
+            this.team2.increaseGoalsTaken();
+        } else {
+            this.team2Goals++;
+            this.team2.increaseGoalsScored(scorerId);
+            this.team1.increaseGoalsTaken();
+        }
+    }
+
+    @Override
+    public String toString() {
+        return this.team1.getName() + " vs " + this.team2.getName() + ": " + this.team1Goals + "-" + this.team2Goals + "\nBola: " + this.ball.getColor();
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/Main.java b/1ano/2semestre/poo/src/aula07/ex3/Main.java
new file mode 100644
index 0000000..2e21af9
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/Main.java
@@ -0,0 +1,187 @@
+package aula07.ex3;
+
+import java.util.Scanner;
+
+public class Main {
+    public static final Scanner sin = new Scanner(System.in);
+    public static Team[] teams;
+    public static Game[] games;
+
+
+    public static void main(String[] args) {
+        while (true) {
+            int option = menu();
+            switch (option) {
+                case 0 -> {
+                    sin.close();
+                    System.exit(0);
+                }
+                case 1 -> createTeam();
+                case 2 -> listTeams();
+                case 3 -> listRobots();
+                case 4 -> createGame();
+                case 5 -> listGames();
+                default -> System.out.println("Opção inválida!");
+            }
+        }
+    }
+
+    private static void listGames() {
+        for (Game g : games)
+            System.out.println(g);
+    }
+
+    private static void createGame() {
+        if (teams == null || teams.length < 2) {
+            System.out.println("Não existem equipas suficientes para criar um jogo!");
+            return;
+        }
+        System.out.println("Equipas:");
+        for (int i = 0; i < teams.length; i++)
+            System.out.println((i+1) + " - " + teams[i].getName());
+        System.out.print("Escolha a equipa 1: ");
+        int team1Id = Integer.parseInt(sin.nextLine());
+        System.out.print("Escolha a equipa 2: ");
+        int team2Id = Integer.parseInt(sin.nextLine());
+        Team team1 = teams[team1Id-1];
+        Team team2 = teams[team2Id-1];
+        System.out.println("Bola para o jogo:");
+        System.out.print("Cor da bola: ");
+        String color = sin.nextLine();
+        System.out.print("X inicial: ");
+        String xString = sin.nextLine();
+        double ballX = Double.parseDouble(xString.equals("") ? "0" : xString);
+        System.out.print("Y inicial: ");
+        String yString = sin.nextLine();
+        double ballY = Double.parseDouble(yString.equals("") ? "0" : yString);
+        Ball ball = new Ball(ballX, ballY, color);
+        System.out.println("Duração do jogo (minutos): ");
+        String durationString = sin.nextLine();
+        double duration = Double.parseDouble(durationString.equals("") ? "90" : durationString);
+        Game game = new Game(team1, team2, ball, duration);
+        if (games == null)
+            games = new Game[] { game };
+        else {
+            Game[] newGames = new Game[games.length+1];
+            System.arraycopy(games, 0, newGames, 0, games.length);
+            newGames[games.length] = game;
+            games = newGames;
+        }
+        game.start();
+        new Thread(() -> {
+            while (game.getTimeElapsed() < game.getGameDuration()) {
+                System.out.println("1 - Mover bola");
+                System.out.println("2 - Mover robot");
+                System.out.println("3 - Adicionar golo");
+                System.out.print("Opção: ");
+                int option = Integer.parseInt(sin.nextLine());
+                swit : switch (option) {
+                    case 1 -> {
+                        System.out.print("Novo X: ");
+                        double x = Double.parseDouble(sin.nextLine());
+                        System.out.print("Novo Y: ");
+                        double y = Double.parseDouble(sin.nextLine());
+                        ball.move(x, y);
+                    }
+                    case 2 -> {
+                        System.out.println("Robots:");
+                        for (Robot r : game.getTeam1().getRobots())
+                                System.out.println(r);
+                        for (Robot r : game.getTeam2().getRobots())
+                            System.out.println(r);
+                        System.out.print("Escolha o ID do robot: ");
+                        int robotId = Integer.parseInt(sin.nextLine());
+                        System.out.print("Novo X: ");
+                        double x = Double.parseDouble(sin.nextLine());
+                        System.out.print("Novo Y: ");
+                        double y = Double.parseDouble(sin.nextLine());
+                        game.moveRobot(robotId, x, y);
+                    }
+                    case 3 -> {
+                        System.out.println("Robots:");
+                        System.out.println(game.getTeam1());
+                        System.out.println(game.getTeam2());
+
+                        System.out.print("Escolha o ID do robot que marcou: ");
+                        int robotId = Integer.parseInt(sin.nextLine());
+                        for (Robot r : game.getTeam1().getRobots())
+                            if (r.getId() == robotId) {
+                                game.addGoal(game.getTeam1(), robotId);
+                                break swit;
+                            }
+                        for (Robot r : game.getTeam2().getRobots())
+                            if (r.getId() == robotId) {
+                                game.addGoal(game.getTeam2(), robotId);
+                                break swit;
+                            }
+                    }
+                    default -> System.out.println("Opção inválida!");
+                }
+            }
+        });
+    }
+
+    private static void listRobots() {
+        if (teams == null || teams.length == 0) {
+            System.out.println("Não existem equipas!");
+            return;
+        }
+        for (Team t : teams) {
+            System.out.println("Equipa " + t.getName());
+            for (Robot r : t.getRobots())
+                System.out.println(r);
+        }
+    }
+
+    private static void listTeams() {
+        if (teams == null || teams.length == 0) {
+            System.out.println("Não existem equipas!");
+            return;
+        }
+        for (Team t : teams)
+            System.out.println(t);
+    }
+
+    private static void createTeam() {
+        System.out.print("Nome da equipa: ");
+        String name = sin.nextLine();
+        System.out.print("Treinador: ");
+        String coach = sin.nextLine();
+        System.out.print("Número de robots: ");
+        int nRobots = Integer.parseInt(sin.nextLine());
+        Robot[] robots = new Robot[nRobots];
+        for (int i = 0; i < nRobots; i++) {
+            System.out.println("Robot " + (i+1));
+            System.out.print("\n1 - GoalKeeper\n2 - Defender\n3 - Midfielder\n4 - Striker\nPosição: ");
+            PlayerPosition position = PlayerPosition.getPositionById(Integer.parseInt(sin.nextLine()));
+            System.out.print("X inicial: ");
+            String xString = sin.nextLine();
+            double x = Double.parseDouble(xString.equals("") ? "0" : xString);
+            System.out.print("Y inicial: ");
+            String yString = sin.nextLine();
+            double y = Double.parseDouble(yString.equals("") ? "0" : yString);
+            robots[i] = new Robot(x, y, position);
+        }
+        Team team = new Team(name, coach, robots);
+        if (teams == null)
+            teams = new Team[] {team};
+        else {
+            Team[] newTeams = new Team[teams.length+1];
+            System.arraycopy(teams, 0, newTeams, 0, teams.length);
+            newTeams[teams.length] = team;
+            teams = newTeams;
+        }
+    }
+
+    private static int menu() {
+        System.out.println("1. Criar equipa");
+        System.out.println("2. Listar equipas");
+        System.out.println("3. Listar robots");
+        System.out.println("4. Criar jogo");
+        System.out.println("5. Listar jogos");
+        System.out.println("0. Sair");
+        System.out.print("> ");
+
+        return Integer.parseInt(sin.nextLine());
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/MovableObject.java b/1ano/2semestre/poo/src/aula07/ex3/MovableObject.java
new file mode 100644
index 0000000..5ca1e86
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/MovableObject.java
@@ -0,0 +1,31 @@
+package aula07.ex3;
+
+public class MovableObject {
+    protected double x;
+    protected double y;
+    protected double distanceTravelled;
+
+    protected MovableObject(double initialX, double initialY) {
+        this.x = initialX;
+        this.y = initialY;
+        this.distanceTravelled = 0;
+    }
+
+    protected MovableObject() {
+        this(0, 0);
+    }
+
+    protected void move(double newX, double newY) {
+        increaseDistanceTravelled(calculateDistanceTravelled(newX, newY));
+        this.x = newX;
+        this.y = newY;
+    }
+
+    protected void increaseDistanceTravelled(double distance) {
+        this.distanceTravelled += distance;
+    }
+
+    private double calculateDistanceTravelled(double newX, double newY) {
+        return Math.sqrt(Math.pow((this.x - newX), 2) + Math.pow(this.y - newY, 2));
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/PlayerPosition.java b/1ano/2semestre/poo/src/aula07/ex3/PlayerPosition.java
new file mode 100644
index 0000000..5db3e8f
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/PlayerPosition.java
@@ -0,0 +1,27 @@
+package aula07.ex3;
+
+public enum PlayerPosition {
+    GoalKeeper,
+    Striker,
+    Defender,
+    MidFielder;
+
+    public static PlayerPosition getPositionById(int id) {
+        return switch (id) {
+            case 1 -> GoalKeeper;
+            case 2 -> Striker;
+            case 3 -> Defender;
+            case 4 -> MidFielder;
+            default -> null;
+        };
+    }
+
+    public String toString() {
+        return switch (this) {
+            case GoalKeeper -> "GoalKeeper";
+            case Striker -> "Striker";
+            case Defender -> "Defender";
+            case MidFielder -> "MidFielder";
+        };
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/Robot.java b/1ano/2semestre/poo/src/aula07/ex3/Robot.java
new file mode 100644
index 0000000..d866d23
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/Robot.java
@@ -0,0 +1,42 @@
+package aula07.ex3;
+
+public class Robot extends MovableObject {
+    public static int currentID = 0;
+    private final int id;
+    private PlayerPosition playerPosition;
+    private int goalsScored = 0;
+
+    public Robot(double initialX, double initialY, PlayerPosition playerPosition) {
+        super(initialX, initialY);
+        this.id = ++Robot.currentID;
+        setPlayerPosition(playerPosition);
+    }
+
+    public Robot(PlayerPosition playerPosition) {
+        this(0, 0, playerPosition);
+    }
+
+    public int getId() {
+        return this.id;
+    }
+
+    public PlayerPosition getPlayerPosition() {
+        return this.playerPosition;
+    }
+    public void setPlayerPosition(PlayerPosition playerPosition) {
+        this.playerPosition = playerPosition;
+    }
+
+    public int getGoalsScored() {
+        return this.goalsScored;
+    }
+    public void increaseGoalsScored() {
+        this.goalsScored++;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("Robot %d (%s) at (%.2f, %.2f) with %.2f travelled distance and %d goals scored",
+            this.id, this.playerPosition, this.x, this.y, this.distanceTravelled, this.goalsScored);
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula07/ex3/TODO.md b/1ano/2semestre/poo/src/aula07/ex3/TODO.md
new file mode 100644
index 0000000..797713c
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/TODO.md
@@ -0,0 +1,4 @@
+# TODO's
+
+- [ ] Fix the timer (not working asynchronically)
+- [ ] Properly test the program to find out what actually needs to be done :skull:
\ No newline at end of file
diff --git a/1ano/2semestre/poo/src/aula07/ex3/Team.java b/1ano/2semestre/poo/src/aula07/ex3/Team.java
new file mode 100644
index 0000000..4430689
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula07/ex3/Team.java
@@ -0,0 +1,85 @@
+package aula07.ex3;
+
+public class Team {
+    private final String name;
+    private String coach;
+    private int goalsScored = 0;
+    private int goalsTaken = 0;
+    private Robot[] robots;
+
+    public Team(String name, String coach, Robot[] robots) {
+        this.name = name;
+        this.coach = coach;
+        this.setRobots(robots);
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public String getCoach() {
+        return this.coach;
+    }
+
+    public void setCoach(String coach) {
+        this.coach = coach;
+    }
+
+    public int getGoalsScored() {
+        return this.goalsScored;
+    }
+
+    public void increaseGoalsScored(int scorerId) {
+        for (Robot r : this.robots)
+            if (r.getId() == scorerId)
+                r.increaseGoalsScored();
+        this.goalsScored++;
+    }
+
+    public int getGoalsTaken() {
+        return this.goalsTaken;
+    }
+
+    public void increaseGoalsTaken() {
+        this.goalsTaken++;
+    }
+
+    public Robot[] getRobots() {
+        return this.robots;
+    }
+
+    public void setRobots(Robot[] robots) {
+        this.robots = robots;
+    }
+
+    public void addRobot(Robot robot) {
+        if (this.robots == null)
+            this.setRobots(new Robot[] {robot});
+        else {
+            Robot[] newRobots = new Robot[this.robots.length+1];
+            System.arraycopy(this.robots, 0, newRobots, 0, this.robots.length);
+            newRobots[newRobots.length-1] = robot;
+            this.setRobots(newRobots);
+        }
+    }
+
+    public void removeRobot(Robot robot) {
+        Robot[] newRobots = new Robot[this.robots.length-1];
+        int index = 0;
+        for (Robot r : this.robots)
+            if (r.getId() != robot.getId()) {
+                newRobots[index] = r;
+                index++;
+            }
+        this.setRobots(newRobots);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder robotsString = new StringBuilder();
+        for (Robot r : this.robots)
+            robotsString.append("\n\t\t").append(r.toString());
+        return String.format("Team %s\n\tCoach: %s\n\tGoals Scored: %d\n\tGoals Taken: %d\n\tRobots:%s",
+            this.name, this.coach, this.goalsScored, this.goalsTaken, robotsString);
+    }
+}