diff --git a/include/rendering/renderer.hpp b/include/rendering/renderer.hpp
index 92c1de59..b53e87d1 100644
--- a/include/rendering/renderer.hpp
+++ b/include/rendering/renderer.hpp
@@ -139,6 +139,7 @@ public:
     QuestMarkerRenderer* getQuestMarkerRenderer() const { return questMarkerRenderer.get(); }
     SkySystem* getSkySystem() const { return skySystem.get(); }
     const std::string& getCurrentZoneName() const { return currentZoneName; }
+    bool isPlayerIndoors() const { return playerIndoors_; }
     VkContext* getVkContext() const { return vkCtx; }
     VkDescriptorSetLayout getPerFrameSetLayout() const { return perFrameSetLayout; }
     VkRenderPass getShadowRenderPass() const { return shadowRenderPass; }
@@ -356,6 +357,7 @@ private:
     std::string currentZoneName;
     bool inTavern_ = false;
     bool inBlacksmith_ = false;
+    bool playerIndoors_ = false;  // Cached WMO inside state for macro conditionals
     float musicSwitchCooldown_ = 0.0f;
     bool deferredWorldInitEnabled_ = true;
     bool deferredWorldInitPending_ = false;
diff --git a/src/rendering/renderer.cpp b/src/rendering/renderer.cpp
index 4dad508d..6583f4bf 100644
--- a/src/rendering/renderer.cpp
+++ b/src/rendering/renderer.cpp
@@ -3476,6 +3476,7 @@ void Renderer::update(float deltaTime) {
     uint32_t insideWmoId = 0;
     const bool insideWmo = canQueryWmo &&
         wmoRenderer->isInsideWMO(camPos.x, camPos.y, camPos.z, &insideWmoId);
+    playerIndoors_ = insideWmo;
 
     // Ambient environmental sounds: fireplaces, water, birds, etc.
     if (ambientSoundManager && camera && wmoRenderer && cameraController) {
diff --git a/src/ui/game_screen.cpp b/src/ui/game_screen.cpp
index fed9a119..35cda2a0 100644
--- a/src/ui/game_screen.cpp
+++ b/src/ui/game_screen.cpp
@@ -5772,6 +5772,16 @@ static std::string evaluateMacroConditionals(const std::string& rawArg,
         if (c == "pet")   return gameHandler.hasPet();
         if (c == "nopet") return !gameHandler.hasPet();
 
+        // indoors / outdoors — WMO interior detection (affects mount type selection)
+        if (c == "indoors" || c == "nooutdoors") {
+            auto* r = core::Application::getInstance().getRenderer();
+            return r && r->isPlayerIndoors();
+        }
+        if (c == "outdoors" || c == "noindoors") {
+            auto* r = core::Application::getInstance().getRenderer();
+            return !r || !r->isPlayerIndoors();
+        }
+
         // group / nogroup — player is in a party or raid
         if (c == "group" || c == "party") return gameHandler.isInGroup();
         if (c == "nogroup")               return !gameHandler.isInGroup();
@@ -6131,7 +6141,8 @@ void GameScreen::sendChatMessage(game::GameHandler& gameHandler) {
                     "--- Macro Conditionals ---",
                     "Usage: /cast [cond1,cond2] Spell1; [cond3] Spell2; Default",
                     "State:   [combat] [mounted] [swimming] [flying] [stealthed]",
-                    "         [channeling] [pet] [group]  (prefix no- to negate)",
+                    "         [channeling] [pet] [group] [indoors] [outdoors]",
+                    "         (prefix no- to negate any condition)",
                     "Target:  [harm] [help] [exists] [noexists] [dead] [nodead]",
                     "         [target=focus] [target=pet] [target=player]",
                     "Form:    [noform] [nostance] [form:0]",