diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3645e122..d0392e94 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -117,6 +117,7 @@ add_library(lego1 SHARED
   LEGO1/mxdsparallelaction.cpp
   LEGO1/mxdsselectaction.cpp
   LEGO1/mxdsserialaction.cpp
+  LEGO1/mxdsstreamingaction.cpp
   LEGO1/mxdssound.cpp
   LEGO1/mxdssource.cpp
   LEGO1/mxdsstill.cpp
diff --git a/LEGO1/mxdsstreamingaction.cpp b/LEGO1/mxdsstreamingaction.cpp
new file mode 100644
index 00000000..e04bb56b
--- /dev/null
+++ b/LEGO1/mxdsstreamingaction.cpp
@@ -0,0 +1,70 @@
+#include "mxdsstreamingaction.h"
+
+DECOMP_SIZE_ASSERT(MxDSStreamingAction, 0xb4)
+
+// OFFSET: LEGO1 0x100cd010
+MxDSStreamingAction::MxDSStreamingAction(MxDSAction &p_dsAction, MxU32 p_offset)
+{
+  Init();
+
+  MxDSAction::operator=(p_dsAction);
+  this->m_unk94 = p_offset;
+  this->m_bufferOffset = p_offset;
+}
+
+// OFFSET: LEGO1 0x100cd0d0
+MxDSStreamingAction::MxDSStreamingAction(MxDSStreamingAction &p_dsStreamingAction)
+{
+  Init();
+  CopyFrom(p_dsStreamingAction);
+}
+
+// OFFSET: LEGO1 0x100cd150
+MxDSStreamingAction::~MxDSStreamingAction()
+{
+  // TODO: Implement MxDSBuffer
+  if (this->m_unka0)
+    delete this->m_unka0;
+  if (this->m_unka4)
+    delete this->m_unka4;
+  if (this->m_internalAction)
+    delete this->m_internalAction;
+}
+
+// OFFSET: LEGO1 0x100cd220
+MxDSStreamingAction *MxDSStreamingAction::CopyFrom(MxDSStreamingAction &p_dsStreamingAction)
+{
+  MxDSAction::operator=(p_dsStreamingAction);
+  this->m_unk94 = p_dsStreamingAction.m_unk94;
+  this->m_bufferOffset = p_dsStreamingAction.m_bufferOffset;
+  this->m_unk9c = p_dsStreamingAction.m_unk9c;
+  this->m_unka0 = NULL;
+  this->m_unka4 = NULL;
+  this->m_unkac = p_dsStreamingAction.m_unkac;
+  this->m_unka8 = p_dsStreamingAction.m_unka8;
+  SetInternalAction(p_dsStreamingAction.m_internalAction ? p_dsStreamingAction.m_internalAction->Clone() : NULL);
+
+  return this;
+}
+
+// OFFSET: LEGO1 0x100cd1e0
+MxResult MxDSStreamingAction::Init()
+{
+  this->m_unk94 = 0;
+  this->m_bufferOffset = 0;
+  this->m_unk9c = 0;
+  this->m_unka0 = NULL;
+  this->m_unka4 = NULL;
+  this->m_unka8 = 0;
+  this->m_unkac = 2;
+  this->m_internalAction = NULL;
+  return SUCCESS;
+}
+
+// OFFSET: LEGO1 0x100cd2a0
+void MxDSStreamingAction::SetInternalAction(MxDSAction *p_dsAction)
+{
+  if (this->m_internalAction)
+    delete this->m_internalAction;
+  this->m_internalAction = p_dsAction;
+}
\ No newline at end of file
diff --git a/LEGO1/mxdsstreamingaction.h b/LEGO1/mxdsstreamingaction.h
new file mode 100644
index 00000000..89a03c5b
--- /dev/null
+++ b/LEGO1/mxdsstreamingaction.h
@@ -0,0 +1,33 @@
+#ifndef MXDSSTREAMINGACTION_H
+#define MXDSSTREAMINGACTION_H
+
+#include "mxdsaction.h"
+
+class MxDSBuffer;
+
+// VTABLE 0x100dd088
+// SIZE 0xb4
+class MxDSStreamingAction : public MxDSAction
+{
+public:
+  MxDSStreamingAction(MxDSAction &p_dsAction, MxU32 p_offset);
+  MxDSStreamingAction(MxDSStreamingAction &p_dsStreamingAction);
+  virtual ~MxDSStreamingAction();
+
+  MxDSStreamingAction *CopyFrom(MxDSStreamingAction &p_dsStreamingAction);
+
+  MxResult Init();
+  void SetInternalAction(MxDSAction *p_dsAction);
+
+private:
+  MxU32 m_unk94;
+  MxU32 m_bufferOffset;
+  MxS32 m_unk9c;
+  MxDSBuffer *m_unka0;
+  MxDSBuffer *m_unka4;
+  undefined4 m_unka8;
+  undefined2 m_unkac;
+  MxDSAction *m_internalAction;
+};
+
+#endif // MXDSSTREAMINGACTION_H