diff --git a/backend/core/settings.py b/backend/core/settings.py
index 2c6afa9..65fc5f7 100644
--- a/backend/core/settings.py
+++ b/backend/core/settings.py
@@ -47,6 +47,8 @@ INSTALLED_APPS = [
     'django.contrib.messages',
     'django.contrib.staticfiles',
     
+    'tasks',
+
     'users',
     'rest_framework',
     'corsheaders',
diff --git a/backend/tasks/__init__.py b/backend/tasks/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/tasks/admin.py b/backend/tasks/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/tasks/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/tasks/apps.py b/backend/tasks/apps.py
new file mode 100644
index 0000000..3ff3ab3
--- /dev/null
+++ b/backend/tasks/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class TasksConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'tasks'
diff --git a/backend/tasks/migrations/0001_initial.py b/backend/tasks/migrations/0001_initial.py
new file mode 100644
index 0000000..e60ea87
--- /dev/null
+++ b/backend/tasks/migrations/0001_initial.py
@@ -0,0 +1,83 @@
+# Generated by Django 4.2.6 on 2023-10-28 15:50
+
+from django.conf import settings
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Reminder',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('startDate', models.DateField(blank=True, null=True)),
+                ('time', models.DateTimeField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='UserNotification',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('type', models.CharField(choices=[('LEVEL_UP', 'Level Up'), ('DEATH', 'Death')], max_length=255)),
+                ('data', models.JSONField(default=dict)),
+                ('seen', models.BooleanField(default=False)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Transaction',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('currency', models.CharField(choices=[('gold', 'Gold')], max_length=12)),
+                ('transaction_type', models.CharField(choices=[('buy_gold', 'Buy Gold'), ('spend', 'Spend'), ('debug', 'Debug'), ('force_update_gold', 'Force Update Gold')], max_length=24)),
+                ('description', models.TextField(blank=True)),
+                ('amount', models.FloatField(default=0)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Task',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('type', models.CharField(choices=[('daily', 'Daily'), ('habit', 'Habit'), ('todo', 'Todo'), ('Long Term Goal', 'Long Term Goal')], default='habit', max_length=15)),
+                ('title', models.TextField()),
+                ('notes', models.TextField(default='')),
+                ('completed', models.BooleanField(default=False)),
+                ('exp', models.FloatField(default=0)),
+                ('priority', models.FloatField(default=1, validators=[django.core.validators.MinValueValidator(0.1), django.core.validators.MaxValueValidator(2)])),
+                ('difficulty', models.PositiveSmallIntegerField(choices=[(1, 'Easy'), (2, 'Normal'), (3, 'Hard'), (4, 'Very Hard'), (5, 'Devil')], unique=True)),
+                ('attribute', models.CharField(choices=[('str', 'Strength'), ('int', 'Intelligence'), ('end', 'Endurance'), ('per', 'Perception'), ('luck', 'Luck')], default='str', max_length=15)),
+                ('challenge', models.BooleanField(default=False)),
+                ('fromSystem', models.BooleanField(default=False)),
+                ('creation_date', models.DateTimeField(auto_now_add=True)),
+                ('last_update', models.DateTimeField(auto_now=True)),
+                ('reminders', models.ManyToManyField(to='tasks.reminder')),
+                ('tags', models.ManyToManyField(to='tasks.tag')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Subtask',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('description', models.TextField()),
+                ('completed', models.BooleanField(default=False)),
+                ('parent_task', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='tasks.task')),
+            ],
+        ),
+    ]
diff --git a/backend/tasks/migrations/__init__.py b/backend/tasks/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/tasks/models.py b/backend/tasks/models.py
new file mode 100644
index 0000000..ca8c7e0
--- /dev/null
+++ b/backend/tasks/models.py
@@ -0,0 +1,157 @@
+from django.db import models
+from django.conf import settings
+from django.core import validators
+
+
+class Reminder(models.Model):
+    """
+    Represents a reminder associated with a task.
+    Fields:
+    - startDate: The optional date for which the reminder is set.
+    - time: The time at which the reminder is triggered.
+    """
+    startDate = models.DateField(null=True, blank=True)
+    time = models.DateTimeField()
+
+class Tag(models.Model):
+    """
+    Represents a tag that can be associated with tasks.
+    Fields:
+    - name: The unique name of the tag.
+    """
+    name = models.CharField(max_length=255)
+
+class Task(models.Model):
+    """
+    Represents a task, such as Habit, Daily, Todo, or Reward.
+    Fields:
+    - type: The type of the tasks
+    - title: Title of the task.
+    - notes: Optional additional notes for the task.
+    - tags: Associated tags for the task.
+    - completed: A boolean field indicating whether the task is completed.
+    - exp: The experience values user will get from the task.
+    - priority: The priority of the task (range: 0.1 to 2).
+    - difficulty: The difficulty of the task (range: 1 to 5).
+    - attribute: The attribute linked to the task
+    - user: The user who owns the task.
+    - challenge: Associated challenge (optional).
+    - reminders: A Many-to-Many relationship with Reminder.
+    - fromSystem: A boolean field indicating if the task is from System.
+    - creation_date: Creation date of the task.
+    - last_update: Last updated date of the task.
+    """
+    TASK_TYPES = [
+        ('daily', 'Daily'),
+        ('habit', 'Habit'),
+        ('todo', 'Todo'),
+        ('Long Term Goal', 'Long Term Goal'),
+    ]
+
+    DIFFICULTY_CHOICES = [
+        (1, 'Easy'),
+        (2, 'Normal'),
+        (3, 'Hard'),
+        (4, 'Very Hard'),
+        (5, 'Devil'),
+    ]
+
+    type = models.CharField(max_length=15, choices=TASK_TYPES, default='habit')
+    title = models.TextField()
+    notes = models.TextField(default='')
+    tags = models.ManyToManyField(Tag)
+    completed = models.BooleanField(default=False)
+    exp = models.FloatField(default=0)
+    priority = models.FloatField(default=1, validators=[
+        validators.MinValueValidator(0.1),
+        validators.MaxValueValidator(2),
+    ])
+    difficulty = models.PositiveSmallIntegerField(choices=DIFFICULTY_CHOICES, unique=True)
+    attribute = models.CharField(max_length=15, choices=[
+        ('str', 'Strength'),
+        ('int', 'Intelligence'),
+        ('end', 'Endurance'),
+        ('per', 'Perception'),
+        ('luck', 'Luck'),
+    ], default='str')
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    challenge = models.BooleanField(default=False)
+    reminders = models.ManyToManyField(Reminder)
+    fromSystem = models.BooleanField(default=False)
+    creation_date = models.DateTimeField(auto_now_add=True)
+    last_update = models.DateTimeField(auto_now=True)
+
+
+class Subtask(models.Model):
+    """
+    Represents a subtask associated with a task.
+    - description: Description of the subtask.
+    - completed: A boolean field indicating whether the subtask is completed.
+    - parent_task: The parent task of the subtask.
+    """
+    description = models.TextField()
+    completed = models.BooleanField(default=False)
+    parent_task = models.ForeignKey(Task, on_delete=models.CASCADE)
+
+
+class UserNotification(models.Model):
+    """
+    Represents a user notification.
+    Fields:
+    - type: The type of the notification (e.g., 'NEW_CHAT_MESSAGE').
+    - data: JSON data associated with the notification.
+    - seen: A boolean field indicating whether the notification has been seen.
+    """
+    NOTIFICATION_TYPES = (
+        ('LEVEL_UP', 'Level Up'),
+        ('DEATH', 'Death'),
+    )
+
+    type = models.CharField(max_length=255, choices=[type for type in NOTIFICATION_TYPES])
+    data = models.JSONField(default=dict)
+    seen = models.BooleanField(default=False)
+
+    @staticmethod
+    def clean_notification(notifications):
+        """
+        Cleanup function for removing corrupt notification data:
+        - Removes notifications with null or missing id or type.
+        """
+        if not notifications:
+            return notifications
+
+        filtered_notifications = []
+
+        for notification in notifications:
+            if notification.id is None or notification.type is None:
+                continue
+
+        return filtered_notifications
+
+
+class Transaction(models.Model):
+    """
+    Represents a transaction involving currencies in the system.
+    Fields:
+    - currency: The type of currency used in the transaction
+    - transactionType: The type of the transaction
+    - description: Additional text.
+    - amount: The transaction amount.
+    - user: The user involved in the transaction.
+    """
+    CURRENCIES = (('gold', 'Gold'),)
+    TRANSACTION_TYPES = (
+    ('buy_gold', 'Buy Gold'),
+    ('spend', 'Spend'),
+    ('debug', 'Debug'),
+    ('force_update_gold', 'Force Update Gold'),
+    )
+
+    currency = models.CharField(max_length=12, choices=CURRENCIES)
+    transaction_type = models.CharField(max_length=24, choices=TRANSACTION_TYPES)
+    description = models.TextField(blank=True)
+    amount = models.FloatField(default=0)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+
+    def __str__(self):
+        return f"Transaction ({self.id})"
\ No newline at end of file
diff --git a/backend/tasks/tests.py b/backend/tasks/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/tasks/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/tasks/views.py b/backend/tasks/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/backend/tasks/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/backend/users/models.py b/backend/users/models.py
index 03d6e12..e473572 100644
--- a/backend/users/models.py
+++ b/backend/users/models.py
@@ -26,3 +26,17 @@ class CustomUser(AbstractBaseUser, PermissionsMixin):
     def __str__(self):
         # String representation of the user
         return self.username
+
+
+# class UserStats(models.Model):
+#     """
+#     Represents User Profiles and Attributes.
+#     Fields:
+#     - health: health points of the user.
+#     - gold: gold points of the user.
+#     - experience: experience points of the user.
+#     """
+#     user = models.OneToOneField(CustomUser, on_delete=models.CASCADE)
+#     health = models.IntegerField(default=100)
+#     gold = models.IntegerField(default=0)
+#     experience = models.FloatField(default=0)
\ No newline at end of file