diff --git a/Knossos.NET/Classes/Knossos.cs b/Knossos.NET/Classes/Knossos.cs
index 62aa3169..61498417 100644
--- a/Knossos.NET/Classes/Knossos.cs
+++ b/Knossos.NET/Classes/Knossos.cs
@@ -819,9 +819,12 @@ await Task.Run(async () => {
 
                 //generate mod tag buttons
                 Dispatcher.UIThread.Invoke(() =>
-                {
+                {                                      
                     NebulaModListView.Instance?.GenerateFilterButtons();
                     ModListView.Instance?.GenerateFilterButtons();
+                    MainWindowViewModel.Instance?.NebulaModsView?.UpdateFS2InstallButton();
+                    MainWindowViewModel.Instance?.InstalledModsView?.UpdateFS2InstallButton();
+
                 });
 
                 initIsComplete = true;
diff --git a/Knossos.NET/ViewModels/ModListViewModel.cs b/Knossos.NET/ViewModels/ModListViewModel.cs
index b07b3f61..93bfcaf2 100644
--- a/Knossos.NET/ViewModels/ModListViewModel.cs
+++ b/Knossos.NET/ViewModels/ModListViewModel.cs
@@ -5,6 +5,7 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using Knossos.NET.Classes;
 using Knossos.NET.Models;
+using Knossos.NET.Views;
 using ObservableCollections;
 
 namespace Knossos.NET.ViewModels
@@ -28,6 +29,9 @@ public partial class ModListViewModel : ViewModelBase
         /// </summary>
         internal ModSortType localSort = ModSortType.name;
 
+        [ObservableProperty]
+        internal bool fs2Present = true;
+
         internal string search = string.Empty;
         internal string Search
         {
@@ -146,7 +150,7 @@ private void BuildFilterString(){
             TextInfo myTI = new CultureInfo("en-US", false).TextInfo;
 
             foreach (var filter in MainWindowViewModel.Instance.tagFilter) {
-                if (count > 3){ 
+                if (count > 2){ 
                     FilterString += " and ...";
                     break;
                 // easiest case, this handles a filter list of one and the start of all other cases
@@ -165,6 +169,14 @@ private void BuildFilterString(){
             }
         }
 
+        /// <summary>
+        /// Used to signal the mod list view to update its "have you installed FS2" button
+        /// </summary>
+        public void UpdateFS2InstallButton()
+        {
+            Fs2Present = Knossos.retailFs2RootFound;
+        }
+
         /// <summary>
         /// 
         /// </summary>
@@ -182,7 +194,12 @@ public void OpenTab()
                 }
             }
 
-            SortString = "Sorted by " + Search;
+            if (Knossos.initIsComplete)
+            {
+                Fs2Present = Knossos.retailFs2RootFound;
+            }
+
+            SortString = "Sorted by " + localSort;         
             BuildFilterString();
         }
 
@@ -318,5 +335,21 @@ public void RemoveModVersion(Mod mod)
                 }
             }
         }
+
+        /// <summary>
+        /// Open the retails FS2 installer window
+        /// </summary>
+        internal async void InstallFS2Command()
+        {
+            if (MainWindow.instance != null)
+            {
+                var dialog = new Fs2InstallerView();
+                dialog.DataContext = new Fs2InstallerViewModel();
+
+                await dialog.ShowDialog<Fs2InstallerView?>(MainWindow.instance);
+
+                Fs2Present = Knossos.retailFs2RootFound;
+            }
+        }
     }
 }
diff --git a/Knossos.NET/ViewModels/NebulaModListViewModel.cs b/Knossos.NET/ViewModels/NebulaModListViewModel.cs
index 74dd4f53..6274208a 100644
--- a/Knossos.NET/ViewModels/NebulaModListViewModel.cs
+++ b/Knossos.NET/ViewModels/NebulaModListViewModel.cs
@@ -7,6 +7,7 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using Knossos.NET.Classes;
 using Knossos.NET.Models;
+using Knossos.NET.Views;
 using ObservableCollections;
 
 namespace Knossos.NET.ViewModels
@@ -47,6 +48,9 @@ internal bool isLoading{
         [ObservableProperty]
         internal LoadingIconViewModel loadingAnimation = new LoadingIconViewModel();
 
+        [ObservableProperty]
+        internal bool fs2Present = true;
+
         /// <summary>
         /// Search string
         /// </summary>
@@ -169,7 +173,7 @@ private void BuildFilterString(){
             TextInfo myTI = new CultureInfo("en-US", false).TextInfo;
 
             foreach (var filter in MainWindowViewModel.Instance.tagFilter) {
-                if (count > 3){ 
+                if (count > 2){ 
                     FilterString += " and ...";
                     break;
                 // easiest case, this handles a filter list of one and the start of all other cases
@@ -188,12 +192,21 @@ private void BuildFilterString(){
             }
         }
 
+        /// <summary>
+        /// Used to signal the mod list view to update its "have you installed FS2" button
+        /// </summary>
+        public void UpdateFS2InstallButton()
+        {
+            Fs2Present = Knossos.retailFs2RootFound;
+        }
+
         /// <summary>
         /// Open the tab code
         /// </summary>
         public void OpenTab()
         {
             IsTabOpen = true;
+
             if (!isLoading)
             {
                 Task.Run(() =>
@@ -223,6 +236,11 @@ public void OpenTab()
                     ShowTiles = true;
                 });
             }
+
+            if (Knossos.initIsComplete)
+            {
+                Fs2Present = Knossos.retailFs2RootFound;
+            }
         }
 
         /// <summary>
@@ -371,5 +389,20 @@ public void CancelModInstall(string id)
                 modCard.CancelInstall();
             }
         }
+
+        /// <summary>
+        /// Open the retails FS2 installer window
+        /// </summary>
+        internal async void InstallFS2Command()
+        {
+            if (MainWindow.instance != null)
+            {
+                var dialog = new Fs2InstallerView();
+                dialog.DataContext = new Fs2InstallerViewModel();
+
+                await dialog.ShowDialog<Fs2InstallerView?>(MainWindow.instance);
+                Fs2Present = Knossos.retailFs2RootFound;
+            }
+        }        
     }
 }
diff --git a/Knossos.NET/Views/ModListView.axaml b/Knossos.NET/Views/ModListView.axaml
index 6ffae928..971fa3cd 100644
--- a/Knossos.NET/Views/ModListView.axaml
+++ b/Knossos.NET/Views/ModListView.axaml
@@ -55,6 +55,11 @@
 				</StackPanel>
 			</WrapPanel>
 			<WrapPanel Margin="10" Grid.Row="0" Grid.Column="1" HorizontalAlignment="Right">
+				<Button Margin="0,0,5,0" Height="42" Width="100" HorizontalAlignment="Right" Classes="Primary" IsVisible="{Binding !Fs2Present}" Command="{Binding InstallFS2Command}" FontSize="12" ToolTip.Tip="Add Freespace 2 to your knossos.NET library by pointing at a current installation or by using the GOG.com installer.  Mods with a Freespace dependency will not appear without this in your library.">
+					<TextBlock HorizontalAlignment="Center" TextAlignment="Center" MaxWidth="100" TextWrapping="Wrap">
+						Find/Install Freespace 2
+					</TextBlock>
+				</Button>
 				<Button ToolTip.Tip="View Color Codes" HorizontalAlignment="Right">
 					<Image Height="30" Width="30" Source="/Assets/general/questionmark.png"></Image>
 					<Button.Flyout>
diff --git a/Knossos.NET/Views/NebulaModListView.axaml b/Knossos.NET/Views/NebulaModListView.axaml
index 323409d1..ae791467 100644
--- a/Knossos.NET/Views/NebulaModListView.axaml
+++ b/Knossos.NET/Views/NebulaModListView.axaml
@@ -55,6 +55,11 @@
 				</StackPanel>
 			</WrapPanel>
 			<WrapPanel Margin="10" Grid.Row="0" Grid.Column="1" HorizontalAlignment="Right">
+				<Button Margin="0,0,5,0" Height="42" Width="100" HorizontalAlignment="Right" Classes="Primary" IsVisible="{Binding !Fs2Present}" Command="{Binding InstallFS2Command}" FontSize="11" ToolTip.Tip="Add Freespace 2 to your knossos.NET library by pointing at a current installation or by using the GOG.com installer.  Mods with a Freespace dependency will not appear without this in your library.">
+					<TextBlock HorizontalAlignment="Center" TextAlignment="Center" MaxWidth="100" TextWrapping="Wrap">
+						Find/Install Freespace 2
+					</TextBlock>
+				</Button>
 				<Button Command="{Binding ReloadRepoCommand}" ToolTip.Tip="Refresh">
 					<Image Height="30" Width="30" Source="/Assets/general/refresh.png"></Image>
 				</Button>
diff --git a/Knossos.NET/Views/Windows/Fs2InstallerView.axaml b/Knossos.NET/Views/Windows/Fs2InstallerView.axaml
index f6547165..36ef25fc 100644
--- a/Knossos.NET/Views/Windows/Fs2InstallerView.axaml
+++ b/Knossos.NET/Views/Windows/Fs2InstallerView.axaml
@@ -26,7 +26,7 @@
 					<Button Classes="Quaternary" IsEnabled="{Binding !IsInstalling}" Margin="10" Command="{Binding LoadFolderCommand}">Browse Folder</Button>
 					<Label Margin="5" FontWeight="Bold">Required File List:</Label>
 					<TextBlock Margin="10,0,0,0" Text="root_fs2.vp, smarty_fs2.vp, sparky_fs2.vp, sparky_hi_fs2.vp, stu_fs2.vp, tango1_fs2.vp, tango2_fs2.vp, tango3_fs2.vp, warble_fs2.vp" TextWrapping="Wrap"></TextBlock>
-					<Label Margin="5" FontWeight="Bold">After copying the files to the KnossosNET library, the original install is not longer needed.</Label>
+					<Label Margin="5" FontWeight="Bold">After copying the files to the KnossosNET library, the original installation is not longer needed.</Label>
 				</StackPanel>
 			</Border>