diff --git a/pdk/pdk.cpp b/pdk/pdk.cpp
new file mode 100644
index 00000000..32f000f5
--- /dev/null
+++ b/pdk/pdk.cpp
@@ -0,0 +1,59 @@
+#include "pdk.h"
+
+/// <summary>
+/// Registering from the Maker
+/// </summary>
+/// <param name="interfaceMakePtr"></param>
+/// <param name="interfaceVersion"></param>
+/// <returns>0 for success, 1 if failed</returns>
+int PDK::RegisterInterface(InterfaceMaker interfaceMakePtr, const char* interfaceVersion)
+{
+    if (interfaceMakePtr == NULL)
+        return 1;
+    if (interfaceVersion == NULL)
+        return 1;
+    if (!client_known_interfaces.count(interfaceVersion))
+        return 1;
+    interfaceMap.insert(std::make_pair(interfaceMakePtr, interfaceVersion));
+    return 0;
+}
+
+/// <summary>
+/// Unregistering from the Maker
+/// </summary>
+/// <param name="interfaceMakePtr"></param>
+/// <returns>0 for success, 1 if failed</returns>
+int PDK::UnRegisterInterface(InterfaceMaker interfaceMakePtr)
+{
+    if (interfaceMakePtr == NULL)
+        return 1;
+
+    interfaceMap.erase(interfaceMakePtr);
+    return 0;
+}
+
+void* PDK::MakeInterface(HSteamUser hSteamUser, HSteamPipe hSteamPipe, const char* interfaceVersion)
+{
+    for (const auto& [key, value] : interfaceMap)
+    {
+        if (strstr(interfaceVersion, value) == 0)
+        {
+            auto maker = (InterfaceMaker)key;
+            return maker(hSteamUser, hSteamPipe);
+        }
+    }
+    return nullptr;
+}
+
+
+void* TestCreate(HSteamUser hSteamUser, HSteamPipe hSteamPipe)
+{
+    return nullptr;
+}
+
+void Register()
+{
+    // Which one should be good? idk
+    //PDK::RegisterInterface(TestCreate, "STEAMAPPLIST_INTERFACE_VERSION001");
+    //PDK::RegisterInterface(&TestCreate, "STEAMAPPLIST_INTERFACE_VERSION001");
+}
diff --git a/pdk/pdk.h b/pdk/pdk.h
new file mode 100644
index 00000000..983316ce
--- /dev/null
+++ b/pdk/pdk.h
@@ -0,0 +1,20 @@
+#ifndef PDK_INCLUDE_H
+#define PDK_INCLUDE_H
+
+#include "dll/base.h"
+#include "dll/client_known_interfaces.h"
+
+typedef void* (__cdecl* InterfaceMaker)(HSteamUser hSteamUser, HSteamPipe hSteamPipe);
+
+class PDK
+{
+    static inline std::map<void* /* interfaceMaker */, const char* /* interfaceVersion */> interfaceMap;
+public:
+
+    static int RegisterInterface(InterfaceMaker interfaceMakePtr, const char* interfaceVersion);
+    static int UnRegisterInterface(InterfaceMaker interfaceMakePtr);
+    static void* MakeInterface(HSteamUser hSteamUser, HSteamPipe hSteamPipe, const char* interfaceVersion);
+};
+
+
+#endif //PDK_INCLUDE_H
diff --git a/premake5.lua b/premake5.lua
index 2a0684d8..fe54bddc 100644
--- a/premake5.lua
+++ b/premake5.lua
@@ -197,6 +197,7 @@ local common_include = {
     'crash_printer',
     'sdk',
     "overlay_experimental",
+    "pdk"
 }
 
 local x32_deps_include = {
@@ -243,6 +244,8 @@ local common_files = {
     "helpers/common_helpers.cpp", "helpers/common_helpers/**",
     -- helpers/dbg_log
     "helpers/dbg_log.cpp", "helpers/dbg_log/**",
+    -- pdk
+    "pdk/**",
 }
 
 local overlay_files = {