diff --git a/lib/hkStubs/CMakeLists.txt b/lib/hkStubs/CMakeLists.txt
index d4cb5892..c4f499f5 100644
--- a/lib/hkStubs/CMakeLists.txt
+++ b/lib/hkStubs/CMakeLists.txt
@@ -63,6 +63,7 @@ add_library(hkStubs OBJECT
   Havok/Common/Base/Types/hkRefPtr.h
   Havok/Common/Base/Types/hkRefVariant.h
   Havok/Common/Base/Types/Geometry/Aabb/hkAabb.h
+  Havok/Common/Base/Types/Geometry/Sphere/hkSphere.h
   Havok/Common/Base/Types/Physics/hkStepInfo.h
   Havok/Common/Base/Types/Physics/ContactPoint/hkContactPointMaterial.h
   Havok/Common/Base/Types/Physics/MotionState/hkMotionState.h
diff --git a/lib/hkStubs/Havok/Common/Base/Types/Geometry/Sphere/hkSphere.h b/lib/hkStubs/Havok/Common/Base/Types/Geometry/Sphere/hkSphere.h
new file mode 100644
index 00000000..1e502f0a
--- /dev/null
+++ b/lib/hkStubs/Havok/Common/Base/Types/Geometry/Sphere/hkSphere.h
@@ -0,0 +1,77 @@
+#pragma once
+
+#include <Havok/Common/Base/hkBase.h>
+
+class hkSphere {
+public:
+    HK_DECLARE_CLASS_ALLOCATOR(hkSphere)
+    HK_DECLARE_REFLECTION()
+
+    inline hkSphere();
+    inline hkSphere(hkVector4Parameter pt, hkReal radius);
+    inline hkSphere(hkVector4Parameter pt, hkSimdRealParameter radius);
+
+    inline hkReal getRadius() const;
+    inline hkSimdReal getRadiusSimdReal() const;
+
+    inline void setRadius(hkReal newRadius);
+    inline void setRadius(hkSimdRealParameter newRadius);
+
+    inline const hkVector4& getPositionAndRadius() const;
+    inline hkVector4& getPositionAndRadius();
+
+    inline void setPosition(hkVector4Parameter newPos);
+    inline void setPositionAndRadius(hkVector4Parameter newPos);
+    inline void setPositionAndRadius(hkVector4Parameter newPos, hkSimdRealParameter newRadius);
+
+protected:
+    // the radius is stored in w
+    hkVector4 m_pos;
+};
+
+inline hkSphere::hkSphere() = default;
+
+inline hkSphere::hkSphere(hkVector4Parameter pt, hkReal radius) {
+    m_pos = pt;
+    setRadius(radius);
+}
+
+inline hkSphere::hkSphere(hkVector4Parameter pt, hkSimdRealParameter radius) {
+    m_pos.setXYZ_W(pt, radius);
+}
+
+inline hkReal hkSphere::getRadius() const {
+    return m_pos(3);
+}
+
+inline hkSimdReal hkSphere::getRadiusSimdReal() const {
+    return m_pos.getW();
+}
+
+inline void hkSphere::setRadius(hkReal newRadius) {
+    m_pos(3) = newRadius;
+}
+
+inline void hkSphere::setRadius(hkSimdRealParameter newRadius) {
+    m_pos.setW(newRadius);
+}
+
+inline const hkVector4& hkSphere::getPositionAndRadius() const {
+    return m_pos;
+}
+
+inline hkVector4& hkSphere::getPositionAndRadius() {
+    return m_pos;
+}
+
+inline void hkSphere::setPositionAndRadius(const hkVector4f& newPos) {
+    m_pos.setXYZ(newPos);
+}
+
+inline void hkSphere::setPosition(const hkVector4f& newPos) {
+    m_pos = newPos;
+}
+
+inline void hkSphere::setPositionAndRadius(const hkVector4f& newPos, const hkSimdReal& newRadius) {
+    m_pos.setXYZ_W(newPos, newRadius);
+}