diff --git a/src/app/editor/code/assembly_editor.cc b/src/app/editor/code/assembly_editor.cc
index 63ced8bf..622bf057 100644
--- a/src/app/editor/code/assembly_editor.cc
+++ b/src/app/editor/code/assembly_editor.cc
@@ -218,7 +218,8 @@ void AssemblyEditor::UpdateCodeView() {
   DrawToolset();
   gui::VerticalSpacing(2.0f);
 
-  static gui::EditorCard file_browser_card("File Browser", ICON_MD_FOLDER);
+  // Create session-aware card (non-static for multi-session support)
+  gui::EditorCard file_browser_card(MakeCardTitle("File Browser").c_str(), ICON_MD_FOLDER);
   bool file_browser_open = true;
   if (file_browser_card.Begin(&file_browser_open)) {
     if (current_folder_.name != "") {
@@ -246,7 +247,8 @@ void AssemblyEditor::UpdateCodeView() {
         continue;
     }
 
-    std::string card_name = files_[file_id];
+    // Create session-aware card title for each file
+    std::string card_name = MakeCardTitle(files_[file_id]);
     gui::EditorCard file_card(card_name.c_str(), ICON_MD_DESCRIPTION, &open);
     if (file_card.Begin()) {
         if (ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows)) {
diff --git a/src/app/editor/dungeon/dungeon_editor_v2.cc b/src/app/editor/dungeon/dungeon_editor_v2.cc
index 495eca48..a0ba5f10 100644
--- a/src/app/editor/dungeon/dungeon_editor_v2.cc
+++ b/src/app/editor/dungeon/dungeon_editor_v2.cc
@@ -128,14 +128,17 @@ void DungeonEditorV2::DrawLayout() {
     int room_id = active_rooms_[i];
     bool open = true;
 
-    std::string card_name_str;
-    const char* card_name;
+    // Create session-aware card title
+    std::string base_name;
     if (room_id >= 0 && static_cast<size_t>(room_id) < std::size(zelda3::kRoomNames)) {
-      card_name_str = absl::StrFormat("%s###RoomCard%d", zelda3::kRoomNames[room_id].data(), room_id);
+      base_name = absl::StrFormat("%s", zelda3::kRoomNames[room_id].data());
     } else {
-      card_name_str = absl::StrFormat("Room %03X###RoomCard%d", room_id, room_id);
+      base_name = absl::StrFormat("Room %03X", room_id);
     }
-    card_name = card_name_str.c_str();
+    
+    std::string card_name_str = absl::StrFormat("%s###RoomCard%d", 
+                                                MakeCardTitle(base_name).c_str(), room_id);
+    const char* card_name = card_name_str.c_str();
 
     gui::EditorCard room_card(card_name, ICON_MD_GRID_ON, &open);
     if (room_card.Begin()) {
diff --git a/src/app/editor/editor.h b/src/app/editor/editor.h
index 92d278a5..9ccaf593 100644
--- a/src/app/editor/editor.h
+++ b/src/app/editor/editor.h
@@ -120,6 +120,14 @@ class Editor {
   EditorType type_;
   EditorContext* context_ = nullptr;
 
+  // Helper method to create session-aware card titles for multi-session support
+  std::string MakeCardTitle(const std::string& base_title) const {
+    if (context_ && context_->session_id > 0) {
+      return absl::StrFormat("%s [S%zu]", base_title, context_->session_id);
+    }
+    return base_title;
+  }
+
   // Helper method for ROM access with safety check
   template<typename T>
   absl::StatusOr<T> SafeRomAccess(std::function<T()> accessor, const std::string& operation = "") const {
diff --git a/src/app/editor/graphics/graphics_editor.cc b/src/app/editor/graphics/graphics_editor.cc
index 2b774d1a..5da87b93 100644
--- a/src/app/editor/graphics/graphics_editor.cc
+++ b/src/app/editor/graphics/graphics_editor.cc
@@ -51,10 +51,11 @@ absl::Status GraphicsEditor::Update() {
   DrawToolset();
   gui::VerticalSpacing(2.0f);
 
-  static gui::EditorCard sheet_editor_card("Sheet Editor", ICON_MD_EDIT);
-  static gui::EditorCard sheet_browser_card("Sheet Browser", ICON_MD_VIEW_LIST);
-  static gui::EditorCard player_anims_card("Player Animations", ICON_MD_PERSON);
-  static gui::EditorCard prototype_card("Prototype Viewer", ICON_MD_CONSTRUCTION);
+  // Create session-aware cards (non-static for multi-session support)
+  gui::EditorCard sheet_editor_card(MakeCardTitle("Sheet Editor").c_str(), ICON_MD_EDIT);
+  gui::EditorCard sheet_browser_card(MakeCardTitle("Sheet Browser").c_str(), ICON_MD_VIEW_LIST);
+  gui::EditorCard player_anims_card(MakeCardTitle("Player Animations").c_str(), ICON_MD_PERSON);
+  gui::EditorCard prototype_card(MakeCardTitle("Prototype Viewer").c_str(), ICON_MD_CONSTRUCTION);
 
   if (show_sheet_editor_) {
     if (sheet_editor_card.Begin(&show_sheet_editor_)) {
diff --git a/src/app/editor/graphics/screen_editor.cc b/src/app/editor/graphics/screen_editor.cc
index 51d28dd2..918fd529 100644
--- a/src/app/editor/graphics/screen_editor.cc
+++ b/src/app/editor/graphics/screen_editor.cc
@@ -68,11 +68,12 @@ absl::Status ScreenEditor::Update() {
   DrawToolset();
   gui::VerticalSpacing(2.0f);
 
-  static gui::EditorCard dungeon_maps_card("Dungeon Maps", ICON_MD_MAP);
-  static gui::EditorCard inventory_menu_card("Inventory Menu", ICON_MD_INVENTORY);
-  static gui::EditorCard overworld_map_card("Overworld Map", ICON_MD_PUBLIC);
-  static gui::EditorCard title_screen_card("Title Screen", ICON_MD_TITLE);
-  static gui::EditorCard naming_screen_card("Naming Screen", ICON_MD_EDIT_ATTRIBUTES);
+  // Create session-aware cards (non-static for multi-session support)
+  gui::EditorCard dungeon_maps_card(MakeCardTitle("Dungeon Maps").c_str(), ICON_MD_MAP);
+  gui::EditorCard inventory_menu_card(MakeCardTitle("Inventory Menu").c_str(), ICON_MD_INVENTORY);
+  gui::EditorCard overworld_map_card(MakeCardTitle("Overworld Map").c_str(), ICON_MD_PUBLIC);
+  gui::EditorCard title_screen_card(MakeCardTitle("Title Screen").c_str(), ICON_MD_TITLE);
+  gui::EditorCard naming_screen_card(MakeCardTitle("Naming Screen").c_str(), ICON_MD_EDIT_ATTRIBUTES);
 
   if (show_dungeon_maps_) {
     if (dungeon_maps_card.Begin(&show_dungeon_maps_)) {
diff --git a/src/app/editor/overworld/overworld_editor.cc b/src/app/editor/overworld/overworld_editor.cc
index c1679f65..f920005e 100644
--- a/src/app/editor/overworld/overworld_editor.cc
+++ b/src/app/editor/overworld/overworld_editor.cc
@@ -124,18 +124,19 @@ absl::Status OverworldEditor::Update() {
   DrawToolset();
   gui::VerticalSpacing(2.0f);
 
-  // Initialize cards on first run
-  static gui::EditorCard tile16_card("Tile16 Selector", ICON_MD_GRID_3X3);
-  static gui::EditorCard tile8_card("Tile8 Selector", ICON_MD_GRID_4X4);
-  static gui::EditorCard area_gfx_card("Area Graphics", ICON_MD_IMAGE);
-  static gui::EditorCard scratch_card("Scratch Space", ICON_MD_BRUSH);
-  static gui::EditorCard tile16_editor_card("Tile16 Editor", ICON_MD_GRID_ON);
-  static gui::EditorCard gfx_groups_card("Graphics Groups", ICON_MD_COLLECTIONS);
-  static gui::EditorCard usage_stats_card("Usage Statistics", ICON_MD_ANALYTICS);
-  static gui::EditorCard v3_settings_card("v3 Settings", ICON_MD_TUNE);
-  static bool cards_initialized = false;
+  // Create session-aware cards (non-static for multi-session support)
+  gui::EditorCard tile16_card(MakeCardTitle("Tile16 Selector").c_str(), ICON_MD_GRID_3X3);
+  gui::EditorCard tile8_card(MakeCardTitle("Tile8 Selector").c_str(), ICON_MD_GRID_4X4);
+  gui::EditorCard area_gfx_card(MakeCardTitle("Area Graphics").c_str(), ICON_MD_IMAGE);
+  gui::EditorCard scratch_card(MakeCardTitle("Scratch Space").c_str(), ICON_MD_BRUSH);
+  gui::EditorCard tile16_editor_card(MakeCardTitle("Tile16 Editor").c_str(), ICON_MD_GRID_ON);
+  gui::EditorCard gfx_groups_card(MakeCardTitle("Graphics Groups").c_str(), ICON_MD_COLLECTIONS);
+  gui::EditorCard usage_stats_card(MakeCardTitle("Usage Statistics").c_str(), ICON_MD_ANALYTICS);
+  gui::EditorCard v3_settings_card(MakeCardTitle("v3 Settings").c_str(), ICON_MD_TUNE);
   
-  if (!cards_initialized) {
+  // Configure card positions (these settings persist via imgui.ini)
+  static bool cards_configured = false;
+  if (!cards_configured) {
     // Position cards for optimal workflow
     tile16_card.SetDefaultSize(300, 600);
     tile16_card.SetPosition(gui::EditorCard::Position::Right);
@@ -161,7 +162,7 @@ absl::Status OverworldEditor::Update() {
     v3_settings_card.SetDefaultSize(500, 600);
     v3_settings_card.SetPosition(gui::EditorCard::Position::Floating);
     
-    cards_initialized = true;
+    cards_configured = true;
   }
   
   // Main canvas (full width when cards are docked)
diff --git a/src/app/editor/sprite/sprite_editor.cc b/src/app/editor/sprite/sprite_editor.cc
index 0a83c5ac..b15f0604 100644
--- a/src/app/editor/sprite/sprite_editor.cc
+++ b/src/app/editor/sprite/sprite_editor.cc
@@ -40,8 +40,9 @@ absl::Status SpriteEditor::Update() {
   DrawToolset();
   gui::VerticalSpacing(2.0f);
 
-  static gui::EditorCard vanilla_card("Vanilla Sprites", ICON_MD_PEST_CONTROL_RODENT);
-  static gui::EditorCard custom_card("Custom Sprites", ICON_MD_ADD_MODERATOR);
+  // Create session-aware cards (non-static for multi-session support)
+  gui::EditorCard vanilla_card(MakeCardTitle("Vanilla Sprites").c_str(), ICON_MD_PEST_CONTROL_RODENT);
+  gui::EditorCard custom_card(MakeCardTitle("Custom Sprites").c_str(), ICON_MD_ADD_MODERATOR);
 
   if (show_vanilla_editor_) {
     if (vanilla_card.Begin(&show_vanilla_editor_)) {