diff --git a/AideDeJeu/AideDeJeu/Models/Items/Item.cs b/AideDeJeu/AideDeJeu/Models/Items/Item.cs
index d9511e78..dbec9a65 100644
--- a/AideDeJeu/AideDeJeu/Models/Items/Item.cs
+++ b/AideDeJeu/AideDeJeu/Models/Items/Item.cs
@@ -117,6 +117,9 @@ namespace AideDeJeuLib
         //    throw new NotImplementedException();
         //}
 
+        [DataMember]
+        public virtual string ItemType { get; set; }
+
         [DataMember(Name = "Item_Id", Order = 0)]
         [PrimaryKey]
         public virtual string Id { get; set; }
diff --git a/AideDeJeu/AideDeJeu/ViewModels/StoreViewModel.cs b/AideDeJeu/AideDeJeu/ViewModels/StoreViewModel.cs
index ac6d20e5..8bf72677 100644
--- a/AideDeJeu/AideDeJeu/ViewModels/StoreViewModel.cs
+++ b/AideDeJeu/AideDeJeu/ViewModels/StoreViewModel.cs
@@ -711,8 +711,6 @@ namespace AideDeJeu.ViewModels
                 modelBuilder.Entity<AlignmentItem>();
                 modelBuilder.Entity<GenericItem>();
                 // voir https://docs.microsoft.com/fr-fr/ef/core/modeling/inheritance
-                modelBuilder.Entity<MonsterItem>().Property(i => i.Family).HasColumnName("Family");
-                modelBuilder.Entity<MonsterItems>().Property(i => i.Family).HasColumnName("Family");
                 modelBuilder.Entity<MonsterItem>().HasIndex(i => new { i.Id, i.Family, i.Type, i.Size, i.Terrain, i.Challenge, i.XP, i.Name, i.AltNameText, i.NormalizedName, i.NormalizedAltName });
                 modelBuilder.Entity<MonsterItems>();
                 modelBuilder.Entity<SpellItem>();
@@ -749,6 +747,50 @@ namespace AideDeJeu.ViewModels
                 modelBuilder.Entity<Items>().HasIndex(i => new { i.Id, i.Name, i.AltNameText, i.NormalizedName, i.NormalizedAltName });
                 modelBuilder.Entity<Item>().HasIndex(i => new { i.Id, i.Name, i.AltNameText, i.NormalizedName, i.NormalizedAltName });
 
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<MonsterItems>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<ClassEvolutionItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<MagicItem>().Property(i => i.Rarity).HasColumnName("Rarity");
+                modelBuilder.Entity<MagicItem>().Property(i => i.Type).HasColumnName("Type");
+                modelBuilder.Entity<MagicItems>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<MagicItems>().Property(i => i.Types).HasColumnName("Types");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.ArmorClass).HasColumnName("ArmorClass");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.SavingThrows).HasColumnName("SavingThrows");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Skills).HasColumnName("Skills");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Speed).HasColumnName("Speed");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Strength).HasColumnName("Strength");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Type).HasColumnName("Type");
+                modelBuilder.Entity<MonsterItems>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<MonsterItems>().Property(i => i.Types).HasColumnName("Types");
+                modelBuilder.Entity<PersonalityDefectItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<PersonalityIdealItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<PersonalityLinkItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<PersonalityTraitItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<RaceItem>().Property(i => i.Alignment).HasColumnName("Alignment");
+                modelBuilder.Entity<RaceItem>().Property(i => i.Languages).HasColumnName("Languages");
+                modelBuilder.Entity<RaceItem>().Property(i => i.Size).HasColumnName("Size");
+                modelBuilder.Entity<RaceItem>().Property(i => i.Speed).HasColumnName("Speed");
+                modelBuilder.Entity<SpellItem>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<SpellItem>().Property(i => i.Type).HasColumnName("Type");
+                modelBuilder.Entity<SpellItem>().Property(i => i.Classes).HasColumnName("Classes");
+                modelBuilder.Entity<SpellItems>().Property(i => i.Classes).HasColumnName("Classes");
+                modelBuilder.Entity<SpellItems>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<SpellItems>().Property(i => i.Sources).HasColumnName("Sources");
+                modelBuilder.Entity<BackgroundSpecialtyItem>().Property(i => i.Table).HasColumnName("Table");
+                modelBuilder.Entity<ClassProficienciesItem>().Property(i => i.SavingThrows).HasColumnName("SavingThrows");
+                modelBuilder.Entity<ClassProficienciesItem>().Property(i => i.Skills).HasColumnName("Skills");
+                modelBuilder.Entity<EquipmentItem>().Property(i => i.ArmorClass).HasColumnName("ArmorClass");
+                modelBuilder.Entity<EquipmentItem>().Property(i => i.Rarity).HasColumnName("Rarity");
+                modelBuilder.Entity<EquipmentItem>().Property(i => i.Speed).HasColumnName("Speed");
+                modelBuilder.Entity<EquipmentItem>().Property(i => i.Strength).HasColumnName("Strength");
+                modelBuilder.Entity<EquipmentItem>().Property(i => i.Type).HasColumnName("Type");
+                modelBuilder.Entity<EquipmentItems>().Property(i => i.Family).HasColumnName("Family");
+                modelBuilder.Entity<EquipmentItems>().Property(i => i.Types).HasColumnName("Types");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Alignment).HasColumnName("Alignment");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Languages).HasColumnName("Languages");
+                modelBuilder.Entity<MonsterItem>().Property(i => i.Size).HasColumnName("Size");
+                modelBuilder.Entity<MonsterItems>().Property(i => i.Sources).HasColumnName("Sources");
+                modelBuilder.Entity<Item>().HasDiscriminator(i => i.ItemType);
             }
         }
 
diff --git a/Data/library_HD.db b/Data/library_HD.db
new file mode 100644
index 00000000..c124a8fa
Binary files /dev/null and b/Data/library_HD.db differ