diff --git a/CreamInstaller/Forms/SelectDialogForm.Designer.cs b/CreamInstaller/Forms/SelectDialogForm.Designer.cs
index 1d8aa15..c627b86 100644
--- a/CreamInstaller/Forms/SelectDialogForm.Designer.cs
+++ b/CreamInstaller/Forms/SelectDialogForm.Designer.cs
@@ -33,6 +33,8 @@ namespace CreamInstaller.Forms
             saveButton = new Button();
             uninstallAllButton = new Button();
             selectionTreeView = new CustomTreeView();
+            filterLabel = new System.Windows.Forms.Label();
+            filterTextBox = new System.Windows.Forms.TextBox();
             groupBox.SuspendLayout();
             allCheckBoxFlowPanel.SuspendLayout();
             SuspendLayout();
@@ -51,15 +53,33 @@ namespace CreamInstaller.Forms
             acceptButton.Text = "OK";
             acceptButton.UseVisualStyleBackColor = true;
             // 
+            // filterLabel
+            // 
+            filterLabel.AutoSize = true;
+            filterLabel.Location = new System.Drawing.Point(12, 17);
+            filterLabel.Name = "filterLabel";
+            filterLabel.Size = new System.Drawing.Size(68, 15);
+            filterLabel.TabIndex = 1008;
+            filterLabel.Text = "Game search:";
+            // 
+            // filterTextBox
+            // 
+            filterTextBox.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            filterTextBox.Location = new System.Drawing.Point(100, 14);
+            filterTextBox.Name = "filterTextBox";
+            filterTextBox.Size = new System.Drawing.Size(436, 23);
+            filterTextBox.TabIndex = 0;
+            filterTextBox.TextChanged += OnFilterTextChanged;
+            // 
             // groupBox
             // 
             groupBox.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
             groupBox.Controls.Add(selectionTreeView);
             groupBox.Controls.Add(allCheckBoxFlowPanel);
-            groupBox.Location = new System.Drawing.Point(12, 12);
+            groupBox.Location = new System.Drawing.Point(12, 43);
             groupBox.MinimumSize = new System.Drawing.Size(240, 40);
             groupBox.Name = "groupBox";
-            groupBox.Size = new System.Drawing.Size(524, 225);
+            groupBox.Size = new System.Drawing.Size(524, 194);
             groupBox.TabIndex = 3;
             groupBox.TabStop = false;
             groupBox.Text = "Choices";
@@ -188,6 +208,8 @@ namespace CreamInstaller.Forms
             Controls.Add(cancelButton);
             Controls.Add(acceptButton);
             Controls.Add(groupBox);
+            Controls.Add(filterTextBox);
+            Controls.Add(filterLabel);
             FormBorderStyle = FormBorderStyle.FixedSingle;
             MaximizeBox = false;
             MinimizeBox = false;
@@ -215,5 +237,7 @@ namespace CreamInstaller.Forms
         private Button saveButton;
         private CheckBox sortCheckBox;
         private Button uninstallAllButton;
+        private System.Windows.Forms.Label filterLabel;
+        private System.Windows.Forms.TextBox filterTextBox;
     }
 }
\ No newline at end of file
diff --git a/CreamInstaller/Forms/SelectDialogForm.cs b/CreamInstaller/Forms/SelectDialogForm.cs
index 85e86f9..8d44097 100644
--- a/CreamInstaller/Forms/SelectDialogForm.cs
+++ b/CreamInstaller/Forms/SelectDialogForm.cs
@@ -10,6 +10,7 @@ namespace CreamInstaller.Forms;
 internal sealed partial class SelectDialogForm : CustomForm
 {
     private readonly List<(Platform platform, string id, string name)> selected = new();
+    private readonly List<(Platform platform, string id, string name, bool alreadySelected)> allChoices = new();
 
     internal SelectDialogForm(IWin32Window owner) : base(owner)
     {
@@ -28,12 +29,12 @@ internal sealed partial class SelectDialogForm : CustomForm
         allCheckBox.Enabled = false;
         acceptButton.Enabled = false;
         selectionTreeView.AfterCheck += OnTreeNodeChecked;
-        foreach ((Platform platform, string id, string name, bool alreadySelected) in potentialChoices)
-        {
-            TreeNode node = new() { Tag = platform, Name = id, Text = name, Checked = alreadySelected };
-            OnTreeNodeChecked(node);
-            _ = selectionTreeView.Nodes.Add(node);
-        }
+        allChoices.Clear();
+        allChoices.AddRange(potentialChoices);
+        foreach ((Platform platform, string id, string name, bool alreadySelected) in allChoices)
+            if (alreadySelected)
+                selected.Add((platform, id, name));
+        ApplyFilter();
 
         if (selected.Count < 1)
             OnLoad(null, null);
@@ -70,6 +71,32 @@ internal sealed partial class SelectDialogForm : CustomForm
         allCheckBox.CheckedChanged += OnAllCheckBoxChanged;
     }
 
+    private void OnFilterTextChanged(object sender, EventArgs e) => ApplyFilter();
+
+    private void ApplyFilter()
+    {
+        string filter = filterTextBox.Text.Trim();
+        selectionTreeView.AfterCheck -= OnTreeNodeChecked;
+        selectionTreeView.BeginUpdate();
+        selectionTreeView.Nodes.Clear();
+        bool hasSelections = selected.Count > 0;
+        foreach ((Platform platform, string id, string name, bool alreadySelected) in allChoices)
+        {
+            if (filter.Length > 0 && name.IndexOf(filter, StringComparison.OrdinalIgnoreCase) < 0)
+                continue;
+            bool checkedState = hasSelections
+                ? selected.Any(s => s.platform == platform && s.id == id)
+                : alreadySelected;
+            TreeNode node = new() { Tag = platform, Name = id, Text = name, Checked = checkedState };
+            _ = selectionTreeView.Nodes.Add(node);
+        }
+        selectionTreeView.EndUpdate();
+        selectionTreeView.AfterCheck += OnTreeNodeChecked;
+        allCheckBox.CheckedChanged -= OnAllCheckBoxChanged;
+        allCheckBox.Checked = selectionTreeView.Nodes.Count > 0 && selectionTreeView.Nodes.Cast<TreeNode>().All(n => n.Checked);
+        allCheckBox.CheckedChanged += OnAllCheckBoxChanged;
+    }
+
     private void OnResize(object s, EventArgs e)
         => Text = TextRenderer.MeasureText(Program.ApplicationName, Font).Width > Size.Width - 100
             ? Program.ApplicationNameShort
diff --git a/CreamInstaller/Utility/ThemeManager.cs b/CreamInstaller/Utility/ThemeManager.cs
index d0424d8..c588cce 100644
--- a/CreamInstaller/Utility/ThemeManager.cs
+++ b/CreamInstaller/Utility/ThemeManager.cs
@@ -206,6 +206,13 @@ internal static class ThemeManager
                 rtb.ForeColor = DarkFore;
                 break;
 
+            // TextBox follows alternate dark background
+            case TextBox tb:
+                tb.BackColor = DarkBackAlt;
+                tb.ForeColor = DarkFore;
+                tb.BorderStyle = BorderStyle.FixedSingle;
+                break;
+
             // Layout panels set a consistent background
             case TableLayoutPanel tlp:
                 tlp.BackColor = DarkBack;
@@ -258,6 +265,11 @@ internal static class ThemeManager
                 rtb.BackColor = LightBack;
                 rtb.ForeColor = LightFore;
                 break;
+            case TextBox tb:
+                tb.BackColor = LightBackAlt;
+                tb.ForeColor = LightFore;
+                tb.BorderStyle = BorderStyle.Fixed3D;
+                break;
             case TableLayoutPanel tlp:
                 tlp.BackColor = LightBack;
                 break;