diff --git a/backend/app/models/user.py b/backend/app/models/user.py
index 8ce7f88..acb5684 100644
--- a/backend/app/models/user.py
+++ b/backend/app/models/user.py
@@ -1,13 +1,23 @@
 from datetime import date
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Boolean, DateTime, Date
+from sqlalchemy import Column, Integer, String, Boolean, DateTime, Date, Enum
 from sqlalchemy.orm import relationship
 from sqlalchemy.sql import func
 
 from app.database import Base
 
 
+class UserRole:
+    USER = "user"
+    MODERATOR = "moderator"
+    ADMIN = "admin"
+
+    @staticmethod
+    def choices():
+        return [UserRole.USER, UserRole.MODERATOR, UserRole.ADMIN]
+
+
 class User(Base):
     __tablename__ = "users"
 
@@ -17,12 +27,21 @@ class User(Base):
     hashed_password = Column(String(255), nullable=False)
     date_of_birth = Column(Date, nullable=True)
     is_active = Column(Boolean, default=True)
+    role = Column(Enum(UserRole.USER, UserRole.MODERATOR, UserRole.ADMIN), default=UserRole.USER, nullable=False)
+    banned_until = Column(DateTime(timezone=True), nullable=True)
+    suspended_until = Column(DateTime(timezone=True), nullable=True)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     updated_at = Column(DateTime(timezone=True), onupdate=func.now())
 
     sessions = relationship("Session", back_populates="user", cascade="all, delete-orphan")
     worlds = relationship("World", back_populates="owner")
     assets = relationship("Asset", back_populates="owner")
+    reports_made = relationship("Report", back_populates="reporter", foreign_keys="Report.reporter_id")
+    reports_resolved = relationship("Report", back_populates="resolved_by_user", foreign_keys="Report.resolved_by")
+    moderation_actions_created = relationship("ModerationAction", back_populates="moderator", foreign_keys="ModerationAction.moderator_id")
+    moderation_actions_target = relationship("ModerationAction", back_populates="target_user", foreign_keys="ModerationAction.target_user_id")
+    appeals = relationship("Appeal", back_populates="user", foreign_keys="Appeal.user_id")
+    appeals_reviewed = relationship("Appeal", back_populates="reviewer", foreign_keys="Appeal.reviewed_by")
 
     @property
     def is_adult(self) -> bool: