diff --git a/overlay_experimental/Base_Hook.h b/overlay_experimental/Base_Hook.h
index 153bac6..e00404e 100644
--- a/overlay_experimental/Base_Hook.h
+++ b/overlay_experimental/Base_Hook.h
@@ -1,6 +1,10 @@
 #ifndef __INCLUDED_BASE_HOOK_H__
 #define __INCLUDED_BASE_HOOK_H__
 
+#include "../dll/base.h"
+
+#ifdef STEAM_WIN32
+
 #define WIN32_LEAN_AND_MEAN
 #define VC_EXTRALEAN
 #include <Windows.h>
@@ -45,4 +49,6 @@ public:
     }
 };
 
+#endif
+
 #endif//__INCLUDED_BASE_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/DX10_Hook.cpp b/overlay_experimental/DX10_Hook.cpp
index 373071e..f065455 100644
--- a/overlay_experimental/DX10_Hook.cpp
+++ b/overlay_experimental/DX10_Hook.cpp
@@ -1,4 +1,7 @@
 #include "../dll/base.h"
+
+#ifdef STEAM_WIN32
+
 #include "DX10_Hook.h"
 #include "Hook_Manager.h"
 
@@ -71,6 +74,7 @@ void DX10_Hook::resetRenderState()
     }
 }
 
+// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
 void DX10_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
 {
     DXGI_SWAP_CHAIN_DESC desc;
@@ -208,4 +212,6 @@ void DX10_Hook::loadFunctions(ID3D10Device *pDevice, IDXGISwapChain *pSwapChain)
     LOAD_FUNC(ResizeBuffers);
     LOAD_FUNC(ResizeTarget);
 #undef LOAD_FUNC
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/DX10_Hook.h b/overlay_experimental/DX10_Hook.h
index c345bb6..a713287 100644
--- a/overlay_experimental/DX10_Hook.h
+++ b/overlay_experimental/DX10_Hook.h
@@ -1,9 +1,11 @@
 #ifndef __INCLUDED_DX10_HOOK_H__
 #define __INCLUDED_DX10_HOOK_H__
 
+#include "Base_Hook.h"
+#ifdef STEAM_WIN32
+
 #include <d3d10.h>
 #include "DirectX_VTables.h"
-#include "Base_Hook.h"
 
 class DX10_Hook : public Base_Hook
 {
@@ -46,4 +48,6 @@ public:
     void loadFunctions(ID3D10Device *pDevice, IDXGISwapChain *pSwapChain);
 };
 
+#endif//STEAM_WIN32
+
 #endif//__INCLUDED_DX10_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/DX11_Hook.cpp b/overlay_experimental/DX11_Hook.cpp
index 61b3f9f..782d007 100644
--- a/overlay_experimental/DX11_Hook.cpp
+++ b/overlay_experimental/DX11_Hook.cpp
@@ -1,4 +1,7 @@
 #include "../dll/base.h"
+
+#ifdef STEAM_WIN32
+
 #include "DX11_Hook.h"
 #include "Hook_Manager.h"
 
@@ -83,6 +86,7 @@ void DX11_Hook::resetRenderState()
     }
 }
 
+// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
 void DX11_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
 {
     DXGI_SWAP_CHAIN_DESC desc;
@@ -227,4 +231,6 @@ void DX11_Hook::loadFunctions(ID3D11Device *pDevice, IDXGISwapChain *pSwapChain)
     LOAD_FUNC(ResizeBuffers);
     LOAD_FUNC(ResizeTarget);
 #undef LOAD_FUNC
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/DX11_Hook.h b/overlay_experimental/DX11_Hook.h
index cf39514..be04502 100644
--- a/overlay_experimental/DX11_Hook.h
+++ b/overlay_experimental/DX11_Hook.h
@@ -1,9 +1,11 @@
 #ifndef __INCLUDED_DX11_HOOK_H__
 #define __INCLUDED_DX11_HOOK_H__
 
+#include "Base_Hook.h"
+#ifdef STEAM_WIN32
+
 #include <d3d11.h>
 #include "DirectX_VTables.h"
-#include "Base_Hook.h"
 
 class DX11_Hook : public Base_Hook
 {
@@ -46,4 +48,6 @@ public:
     void loadFunctions(ID3D11Device *pDevice, IDXGISwapChain *pSwapChain);
 };
 
+#endif//STEAM_WIN32
+
 #endif//__INCLUDED_DX11_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/DX12_Hook.cpp b/overlay_experimental/DX12_Hook.cpp
index ac3317b..799f334 100644
--- a/overlay_experimental/DX12_Hook.cpp
+++ b/overlay_experimental/DX12_Hook.cpp
@@ -1,4 +1,7 @@
 #include "../dll/base.h"
+
+#ifdef STEAM_WIN32
+
 #include "DX12_Hook.h"
 #include "Hook_Manager.h"
 
@@ -33,6 +36,7 @@ void DX12_Hook::resetRenderState()
     }
 }
 
+// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
 void DX12_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
 {
     DXGI_SWAP_CHAIN_DESC desc;
@@ -134,21 +138,23 @@ DX12_Hook::DX12_Hook():
 {
     _dll = GetModuleHandle(DLL_NAME);
     _hooked = false;
-    // Hook to D3D11CreateDevice and D3D11CreateDeviceAndSwapChain so we know when it gets called.
-    // If its called, then DX11 will be used to render the overlay.
-    D3D12CreateDevice = (decltype(D3D12CreateDevice))GetProcAddress(_dll, "D3D12CreateDevice");
 
-    BeginHook();
-    HookFuncs(
-        std::make_pair<void**, void*>(&(PVOID&)D3D12CreateDevice, &DX12_Hook::MyD3D12CreateDevice)
-    );
-    EndHook();
+    PRINT_DEBUG("Trying to hook DX12 but DX12_Hook is not implemented yet, please report to DEV with the game name.");
 
+    // Hook to D3D12CreateDevice and D3D12CreateDeviceAndSwapChain so we know when it gets called.
+    // If its called, then DX12 will be used to render the overlay.
+    //D3D12CreateDevice = (decltype(D3D12CreateDevice))GetProcAddress(_dll, "D3D12CreateDevice");
+    //
+    //BeginHook();
+    //HookFuncs(
+    //    std::make_pair<void**, void*>(&(PVOID&)D3D12CreateDevice, &DX12_Hook::MyD3D12CreateDevice)
+    //);
+    //EndHook();
 }
 
 DX12_Hook::~DX12_Hook()
 {
-    PRINT_DEBUG("DX11 Hook removed\n");
+    PRINT_DEBUG("DX12 Hook removed\n");
 
     if (_hooked)
         resetRenderState();
@@ -181,4 +187,6 @@ void DX12_Hook::loadFunctions(ID3D12Device *pDevice, IDXGISwapChain *pSwapChain)
     LOAD_FUNC(ResizeBuffers);
     LOAD_FUNC(ResizeTarget);
 #undef LOAD_FUNC
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/DX12_Hook.h b/overlay_experimental/DX12_Hook.h
index a449101..c01acd5 100644
--- a/overlay_experimental/DX12_Hook.h
+++ b/overlay_experimental/DX12_Hook.h
@@ -1,9 +1,11 @@
 #ifndef __INCLUDED_DX12_HOOK_H__
 #define __INCLUDED_DX12_HOOK_H__
 
+#include "Base_Hook.h"
+#ifdef STEAM_WIN32
+
 #include <d3d12.h>
 #include "DirectX_VTables.h"
-#include "Base_Hook.h"
 
 class DX12_Hook : public Base_Hook
 {
@@ -46,4 +48,5 @@ public:
     void loadFunctions(ID3D12Device *pDevice, IDXGISwapChain *pSwapChain);
 };
 
+#endif//STEAM_WIN32
 #endif//__INCLUDED_DX12_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/DX9_Hook.cpp b/overlay_experimental/DX9_Hook.cpp
index 1579917..0affc7f 100644
--- a/overlay_experimental/DX9_Hook.cpp
+++ b/overlay_experimental/DX9_Hook.cpp
@@ -1,5 +1,7 @@
-#include "../dll/base.h"
 #include "DX9_Hook.h"
+
+#ifdef STEAM_WIN32
+
 #include "Hook_Manager.h"
 
 #include <imgui.h>
@@ -72,6 +74,7 @@ void DX9_Hook::resetRenderState()
     }
 }
 
+// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
 void DX9_Hook::prepareForOverlay(IDirect3DDevice9 *pDevice)
 {
     IDirect3DSwapChain9* pSwapChain;
@@ -83,6 +86,7 @@ void DX9_Hook::prepareForOverlay(IDirect3DDevice9 *pDevice)
     D3DDEVICE_CREATION_PARAMETERS param;
     pDevice->GetCreationParameters(&param);
 
+    // Workaround to detect if we changed window.
     if (param.hFocusWindow != Hook_Manager::Inst().GetOverlay()->GetGameHwnd())
         resetRenderState();
 
@@ -221,4 +225,6 @@ void DX9_Hook::loadFunctions(IDirect3DDevice9Ex* pDeviceEx)
     LOAD_FUNC(Present);
     LOAD_FUNC(PresentEx);
 #undef LOAD_FUNC
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/DX9_Hook.h b/overlay_experimental/DX9_Hook.h
index e81d844..69470d1 100644
--- a/overlay_experimental/DX9_Hook.h
+++ b/overlay_experimental/DX9_Hook.h
@@ -1,9 +1,11 @@
 #ifndef __INCLUDED_DX9_HOOK_H__
 #define __INCLUDED_DX9_HOOK_H__
 
+#include "Base_Hook.h"
+#ifdef STEAM_WIN32
+
 #include <d3d9.h>
 #include "DirectX_VTables.h"
-#include "Base_Hook.h"
 
 class DX9_Hook : public Base_Hook
 {
@@ -47,4 +49,6 @@ public:
     void loadFunctions(IDirect3DDevice9Ex *pDeviceEx);
 };
 
+#endif//STEAM_WIN32
+
 #endif//__INCLUDED_DX9_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/Hook_Manager.h b/overlay_experimental/Hook_Manager.h
index 5451d78..5a600af 100644
--- a/overlay_experimental/Hook_Manager.h
+++ b/overlay_experimental/Hook_Manager.h
@@ -1,9 +1,12 @@
 #ifndef __INCLUDED_HOOK_BASE_H__
 #define __INCLUDED_HOOK_BASE_H__
 
+#include "Base_Hook.h"
+
+#ifdef STEAM_WIN32
+
 #include <Windows.h>
 #include <vector>
-#include "Base_Hook.h"
 
 class Hook_Manager
 {
@@ -42,5 +45,6 @@ public:
     Steam_Overlay* GetOverlay() const { return overlay; }
 };
 
+#endif//STEAM_WIN32
 
 #endif//__INCLUDED_HOOK_BASE_H__
\ No newline at end of file
diff --git a/overlay_experimental/OpenGL_Hook.cpp b/overlay_experimental/OpenGL_Hook.cpp
index 6a5e813..368a07f 100644
--- a/overlay_experimental/OpenGL_Hook.cpp
+++ b/overlay_experimental/OpenGL_Hook.cpp
@@ -1,4 +1,7 @@
 #include "../dll/base.h"
+
+#ifdef STEAM_WIN32
+
 #include "OpenGL_Hook.h"
 #include "Hook_Manager.h"
 
@@ -56,6 +59,7 @@ void OpenGL_Hook::resetRenderState()
     }
 }
 
+// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
 void OpenGL_Hook::prepareForOverlay(HDC hDC)
 {
     HWND hWnd = WindowFromDC(hDC);
@@ -146,4 +150,6 @@ void OpenGL_Hook::Create()
         // Register the hook to the Hook Manager
         Hook_Manager::Inst().AddHook(hook);
     }
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/OpenGL_Hook.h b/overlay_experimental/OpenGL_Hook.h
index 1eacc9f..b32cf88 100644
--- a/overlay_experimental/OpenGL_Hook.h
+++ b/overlay_experimental/OpenGL_Hook.h
@@ -1,8 +1,8 @@
 #ifndef __INCLUDED_OPENGL_HOOK_H__
 #define __INCLUDED_OPENGL_HOOK_H__
 
-#include "DirectX_VTables.h"
 #include "Base_Hook.h"
+#ifdef STEAM_WIN32
 
 class OpenGL_Hook : public Base_Hook
 {
@@ -38,4 +38,5 @@ public:
     static void Create(); // Initialize OGL Hook.
 };
 
+#endif//STEAM_WIN32
 #endif//__INCLUDED_OPENGL_HOOK_H__
\ No newline at end of file
diff --git a/overlay_experimental/steam_overlay.cpp b/overlay_experimental/steam_overlay.cpp
index ef7230a..0ca30a9 100644
--- a/overlay_experimental/steam_overlay.cpp
+++ b/overlay_experimental/steam_overlay.cpp
@@ -1,5 +1,7 @@
 #include "steam_overlay.h"
 
+#ifdef STEAM_WIN32
+
 #include <thread>
 #include <string>
 #include <sstream>
@@ -585,4 +587,12 @@ void Steam_Overlay::RunCallbacks()
         }
         has_friend_action.pop();
     }
-}
\ No newline at end of file
+}
+
+#else
+
+/* TODO:
+ * Add here the code for Linux overlay 
+ */
+
+#endif
\ No newline at end of file
diff --git a/overlay_experimental/steam_overlay.h b/overlay_experimental/steam_overlay.h
index d721361..0f95031 100644
--- a/overlay_experimental/steam_overlay.h
+++ b/overlay_experimental/steam_overlay.h
@@ -39,6 +39,8 @@ struct Friend_Less
     }
 };
 
+#ifdef STEAM_WIN32
+
 class Steam_Overlay
 {
     Settings* settings;
@@ -117,4 +119,39 @@ public:
     void FriendDisconnect(Friend _friend);
 };
 
+#else
+
+class Steam_Overlay
+{
+public:
+    Steam_Overlay(Settings* settings, SteamCallResults* callback_results, SteamCallBacks* callbacks, RunEveryRunCB* run_every_runcb, Networking *network);
+    ~Steam_Overlay();
+
+    bool Ready() const { return false: }
+
+    bool NeedPresent() const { return false; }
+
+    void SetNotificationPosition(ENotificationPosition eNotificationPosition) {}
+
+    void SetNotificationInset(int nHorizontalInset, int nVerticalInset) {}
+    void SetupOverlay() {}
+
+    void HookReady(void* hWnd) {}
+
+    void OverlayProc(int width, int height) {}
+
+    void OpenOverlayInvite(CSteamID lobbyId) {}
+    void OpenOverlay(const char* pchDialog) {}
+
+    void ShowOverlay(bool state) {}
+
+    void SetLobbyInvite(Friend friendId, uint64 lobbyId) {}
+    void SetRichInvite(Friend friendId, const char* connect_str) {}
+
+    void FriendConnect(Friend _friend) {}
+    void FriendDisconnect(Friend _friend) {}
+};
+
+#endif
+
 #endif//__INCLUDED_STEAM_OVERLAY_H__