diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistSimulation/HyperTwistPuzzleViewerComponent.cpp b/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistSimulation/HyperTwistPuzzleViewerComponent.cpp
index fd5b077..ec4a79e 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistSimulation/HyperTwistPuzzleViewerComponent.cpp
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistSimulation/HyperTwistPuzzleViewerComponent.cpp
@@ -133,6 +133,26 @@ namespace HyperTwistPuzzleViewerComponentInternal
 		return Result;
 	}
 
+	FHyperTwistProjectionSettings BuildReplayProjectionSettings(
+		const FHyperTwistPuzzleDefinitionRef& PuzzleDefinition
+	)
+	{
+		FHyperTwistProjectionSettings Settings;
+		if (PuzzleDefinition.PuzzleFamily == EHyperTwistPuzzleFamily::Hypercube
+			|| PuzzleDefinition.Dimension > 3)
+		{
+			Settings.ProjectionKind = EHyperTwistProjectionKind::HyperProjection;
+			Settings.ProjectionProfile = TEXT("hyper-default");
+			Settings.ProjectionDepth = 2.0f;
+			return Settings;
+		}
+
+		Settings.ProjectionKind = EHyperTwistProjectionKind::ClassicPerspective;
+		Settings.ProjectionProfile = TEXT("classic-default");
+		Settings.ProjectionDepth = 1.0f;
+		return Settings;
+	}
+
 	int32 ResolvePlaybackTerminalTimeMs(
 		const TArray<int32>& MoveBoundaryTimesMs,
 		const FHyperTwistDerivedReplaySummary& ReplaySummary,
@@ -170,6 +190,7 @@ namespace HyperTwistPuzzleViewerComponentInternal
 				? FString::Printf(TEXT("replay/%s"), *ReplayPacket.ReplayId)
 				: Snapshot.SnapshotId;
 			OutContext.PuzzleState = Snapshot.State;
+			OutContext.ProjectionSettings = BuildReplayProjectionSettings(ReplayPacket.PuzzleDefinition);
 			OutContext.RenderStateProfile = ReplayPacket.PuzzleDefinition.PuzzleFamily == EHyperTwistPuzzleFamily::ClassicCube
 				? TEXT("classic-replay")
 				: TEXT("replay-default");
diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistSimulation/HyperTwistSimulationTypes.h b/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistSimulation/HyperTwistSimulationTypes.h
index db24359..adce671 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistSimulation/HyperTwistSimulationTypes.h
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistSimulation/HyperTwistSimulationTypes.h
@@ -25,6 +25,11 @@ struct FHyperTwistProjectionSettings
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	float ProjectionDepth = 1.0f;
+
+	bool IsStructurallyValid() const
+	{
+		return !ProjectionProfile.IsEmpty() && ProjectionDepth > 0.0f;
+	}
 };
 
 USTRUCT(BlueprintType)
@@ -46,6 +51,9 @@ struct FHyperTwistSimulationSceneContext
 
 	bool IsStructurallyValid() const
 	{
-		return !SceneContextId.IsEmpty() && PuzzleState.IsStructurallyValid() && !RenderStateProfile.IsEmpty();
+		return !SceneContextId.IsEmpty()
+			&& PuzzleState.IsStructurallyValid()
+			&& ProjectionSettings.IsStructurallyValid()
+			&& !RenderStateProfile.IsEmpty();
 	}
 };
diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistClassicCubeIntegrationTest.cpp b/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistClassicCubeIntegrationTest.cpp
index 9b459fb..dcb8997 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistClassicCubeIntegrationTest.cpp
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistClassicCubeIntegrationTest.cpp
@@ -440,6 +440,27 @@ bool FHyperTwistClassicCubeReplayViewerLoadTest::RunTest(const FString& Paramete
 	const FHyperTwistViewerPlaybackState PlaybackState = ViewerComponent->GetPlaybackState();
 	TestTrue(TEXT("The viewer must mark the replay as loaded."), PlaybackState.bReplayLoaded);
 	TestTrue(TEXT("The viewer must materialize scene context from the replay snapshot."), PlaybackState.bSceneContextLoaded);
+	const FHyperTwistSimulationSceneContext ReplaySceneContext = ViewerComponent->GetSceneContext();
+	TestTrue(TEXT("The classic-cube replay scene context must stay structurally valid."), ReplaySceneContext.IsStructurallyValid());
+	TestEqual(
+		TEXT("The classic-cube replay scene context must use the generic classic projection kind."),
+		ReplaySceneContext.ProjectionSettings.ProjectionKind,
+		EHyperTwistProjectionKind::ClassicPerspective
+	);
+	TestEqual(
+		TEXT("The classic-cube replay scene context must use the generic classic projection profile."),
+		ReplaySceneContext.ProjectionSettings.ProjectionProfile,
+		FString(TEXT("classic-default"))
+	);
+	TestTrue(
+		TEXT("The classic-cube replay scene context must preserve a positive generic projection depth."),
+		FMath::IsNearlyEqual(ReplaySceneContext.ProjectionSettings.ProjectionDepth, 1.0f)
+	);
+	TestEqual(
+		TEXT("The classic-cube replay scene context must keep the bounded classic replay render-state profile."),
+		ReplaySceneContext.RenderStateProfile,
+		FString(TEXT("classic-replay"))
+	);
 	TestEqual(TEXT("The viewer must reconstruct the expected move count."), PlaybackState.TotalMoveCount, 10);
 	TestEqual(TEXT("The viewer must retain the replay id after load."), PlaybackState.ReplayId, Packet.ReplayId);
 	return true;
diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistTwistyBound1ReplayShellTest.cpp b/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistTwistyBound1ReplayShellTest.cpp
index 20540e0..5998d0d 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistTwistyBound1ReplayShellTest.cpp
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistTwistyBound1ReplayShellTest.cpp
@@ -120,6 +120,27 @@ bool FHyperTwistTwistyBound1ReplayShellTest::RunTest(const FString& Parameters)
 	TestEqual(TEXT("Replay load must initialize current time to the start boundary."), InitialState.CurrentTimeMs, 0);
 	TestEqual(TEXT("Replay load must derive total replay time from replay events."), InitialState.TotalTimeMs, 900);
 	TestTrue(TEXT("Replay load should derive a scene context from a snapshot event when available."), InitialState.bSceneContextLoaded);
+	const FHyperTwistSimulationSceneContext ReplaySceneContext = Viewer->GetSceneContext();
+	TestTrue(TEXT("Replay-backed scene context must stay structurally valid."), ReplaySceneContext.IsStructurallyValid());
+	TestEqual(
+		TEXT("Hypercube replay scene context should use the generic hyper projection kind."),
+		ReplaySceneContext.ProjectionSettings.ProjectionKind,
+		EHyperTwistProjectionKind::HyperProjection
+	);
+	TestEqual(
+		TEXT("Hypercube replay scene context should use the generic hyper projection profile."),
+		ReplaySceneContext.ProjectionSettings.ProjectionProfile,
+		FString(TEXT("hyper-default"))
+	);
+	TestTrue(
+		TEXT("Hypercube replay scene context should preserve a positive generic projection depth."),
+		FMath::IsNearlyEqual(ReplaySceneContext.ProjectionSettings.ProjectionDepth, 2.0f)
+	);
+	TestEqual(
+		TEXT("Hypercube replay scene context should keep the bounded generic replay render-state profile."),
+		ReplaySceneContext.RenderStateProfile,
+		FString(TEXT("replay-default"))
+	);
 	TestEqual(TEXT("Initial replay-backed scrubber position must stay at the start boundary."), UHyperTwistViewerLibrary::GetScrubberNormalizedPosition(InitialState), 0.0f);
 	TestEqual(TEXT("Timeline label must reflect replay-backed duration."), UHyperTwistViewerLibrary::GetTimelineLabel(InitialState), FString(TEXT("0.00s / 0.90s")));
 	TestEqual(TEXT("Replay summary must count move events."), Viewer->GetReplaySummary().MoveCount, 2);