diff --git a/Sources/Stim/AddGamePage.xaml b/Sources/Stim/AddGamePage.xaml
index 42c122a..385823a 100644
--- a/Sources/Stim/AddGamePage.xaml
+++ b/Sources/Stim/AddGamePage.xaml
@@ -5,6 +5,7 @@
              x:Class="Stim.AddGamePage"
              Title="Ajouter un jeu"
              Background="{StaticResource Secondary}">
+    
     <ScrollView>
         <Grid>
             <Grid.ColumnDefinitions>
@@ -41,7 +42,6 @@
             </VerticalStackLayout>
             <VerticalStackLayout Grid.Column="1" Grid.Row="3" Padding="0,150,0,0">
                 <Label Text="Jaquette" FontSize="30" HorizontalOptions="Center"/>
-                <!-- Please faut commenter quand y'a des trucs à implémenter ou alors faire un ticket-->
                 <Button Margin="5" Clicked="Button_Clicked"/>
             </VerticalStackLayout>
             <VerticalStackLayout Grid.Column="1" Grid.Row="4" Padding="0,150,0,0">
diff --git a/Sources/Stim/AddGamePage.xaml.cs b/Sources/Stim/AddGamePage.xaml.cs
index de5bd0c..9acbe85 100644
--- a/Sources/Stim/AddGamePage.xaml.cs
+++ b/Sources/Stim/AddGamePage.xaml.cs
@@ -21,19 +21,19 @@ public partial class AddGamePage : ContentPage
         string message = "";
         if (string.IsNullOrEmpty(NameEntry.Text)) message += "Nom invalide\n";
         if (string.IsNullOrEmpty(DescriptionEntry.Text)) message += "Description invalide\n";
-        if (string.IsNullOrEmpty(YearEntry.Text) || !int.TryParse(YearEntry.Text, out year)) message += "Année invalide\n";
+        if (string.IsNullOrEmpty(YearEntry.Text) || !int.TryParse(YearEntry.Text, out year) || year < 1957 || year > 2023) message += "Année invalide\n";
         if (string.IsNullOrEmpty(LinkEntry.Text)) message += "Lien invalide\n";
-        if (!string.IsNullOrEmpty(NameEntry.Text) && !string.IsNullOrEmpty(DescriptionEntry.Text) && !string.IsNullOrEmpty(YearEntry.Text) && int.TryParse(YearEntry.Text, out year) && !string.IsNullOrWhiteSpace(LinkEntry.Text) /*|| _ImgPath is null*/)
+        if (message == "" && int.TryParse(YearEntry.Text, out year))
         {
-            message = "Jeu ajouté !";
-            ((App)App.Current).Manager.AddGametoGamesList(new Game(NameEntry.Text, DescriptionEntry.Text, year, new List<string> { TagEntry1.Text, TagEntry2.Text, TagEntry3.Text }, imgName, LinkEntry.Text));
-            await this.ShowPopupAsync(new MessagePopup(message));
-            await Navigation.PopModalAsync();
-            ((App)App.Current).Manager.SaveGames();
-
+            Game game = new(NameEntry.Text, DescriptionEntry.Text, year, new List<string> { TagEntry1.Text, TagEntry2.Text, TagEntry3.Text }, imgName, LinkEntry.Text);
+            if ((App.Current as App).Manager.GameList.Contains(game)) message = "Jeu déjà existant\n";
+            else
+            {
+                message = "Jeu ajouté !";
+                ((App)App.Current).Manager.AddGametoGamesList(game);
+                await Navigation.PopAsync();
+            }
         }
-        //      //if (_ImgPath!=null) NameEntry.Text + ".png";
-        //      //System.IO.File.Copy(_ImgPath, /**/, true);
         await this.ShowPopupAsync(new MessagePopup(message));
     }
 
diff --git a/Sources/Stim/MainPage.xaml.cs b/Sources/Stim/MainPage.xaml.cs
index 8ebdfa7..d1fafe8 100644
--- a/Sources/Stim/MainPage.xaml.cs
+++ b/Sources/Stim/MainPage.xaml.cs
@@ -23,9 +23,9 @@ public partial class MainPage : ContentPage
        await Navigation.PushAsync(new DetailledPage());
     }
 
-    private async void GoToAddGamePage(object sender, EventArgs e)
+    private async void Addgame(object sender, EventArgs e)
     {
-        await Navigation.PushModalAsync(new AddGamePage());
+        await Navigation.PushAsync(new AddGamePage());
     }
 
     private void SearchBar_GameChanged(object sender, TextChangedEventArgs e)