diff --git a/distribution/windows/install.nsi b/distribution/windows/install.nsi
index 70bef26323..120d2b99f3 100644
--- a/distribution/windows/install.nsi
+++ b/distribution/windows/install.nsi
@@ -3,18 +3,34 @@
 !define /ifndef APPV_MINOR 0
 !define /ifndef APPV_MAINT 5
 !define /ifndef APPV_BUILD 0
-!define /ifndef APPV_EXTRA "-beta"
 
-!define APPNAME "OpenRCT2"   ; Define application name
-!define APPVERSION "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}${APPV_EXTRA}"  ; Define application version
-!define APPVERSIONINTERNAL "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}.${APPV_BUILD}" ; Define application version in X.X.X.X
-!include ${VERSION_INCLUDE}
+!define APPNAME             "OpenRCT2"
+!define APPVERSION          "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}${APPV_EXTRA}"
+!define APPVERSIONINTERNAL  "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}.${APPV_BUILD}"
 
 !define /ifndef APPURLLINK "https://github.com/OpenRCT2/OpenRCT2"
 !define APPNAMEANDVERSION "${APPNAME} ${APPVERSION}"
 
+!if "${PLATFORM}" == "Win32"
+    !define OPENRCT2_EXE "openrct2.exe"
+    !define OPENRCT2_DLL "openrct2.dll"
+    !define APPBITS 32
+    !define APPARCH "win32"
+
+    InstallDir "$PROGRAMFILES32\OpenRCT2\"
+!else
+    !define OPENRCT2_EXE "openrct2_x64.exe"
+    !define APPBITS 64
+    !define APPARCH "win64"
+
+    InstallDir "$PROGRAMFILES64\OpenRCT2\"
+!endif
+
+!define SUPPORTED_OS    "Windows Vista, 7, 8.1 and 10"
+
 ; Define root variable relative to installer
 !define PATH_ROOT "..\..\"
+!define BINARY_DIR      "${PATH_ROOT}bin"
 
 !define MUI_ICON "${PATH_ROOT}resources\logo\icon.ico"
 !define MUI_UNICON "${PATH_ROOT}resources\logo\icon.ico"
@@ -27,7 +43,7 @@ SetCompressor LZMA
 
 ; Version Info
 VIProductVersion "${APPVERSIONINTERNAL}"
-VIAddVersionKey "ProductName" "OpenRCT2 ${APPBITS}-bit Installer for Windows ${EXTRA_VERSION}"
+VIAddVersionKey "ProductName" "OpenRCT2 ${APPBITS}-bit Installer for ${SUPPORTED_OS}"
 VIAddVersionKey "Comments" "Installs ${APPNAMEANDVERSION}"
 VIAddVersionKey "CompanyName" "OpenRCT2 Developers"
 VIAddVersionKey "FileDescription" "Installs ${APPNAMEANDVERSION}"
@@ -36,7 +52,7 @@ VIAddVersionKey "InternalName" "InstOpenRCT2-${APPARCH}"
 VIAddVersionKey "FileVersion" "${APPVERSION}-${APPARCH}"
 VIAddVersionKey "LegalCopyright" " "
 ; Main Install settings
-Name "${APPNAMEANDVERSION} ${APPBITS}-bit for Windows ${EXTRA_VERSION}"
+Name "${APPNAMEANDVERSION} ${APPBITS}-bit for ${SUPPORTED_OS}"
 
 ; NOTE: Keep trailing backslash!
 InstallDirRegKey HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "Install Folder"
@@ -83,7 +99,7 @@ ManifestDPIAware true
 
 !define MUI_FINISHPAGE_TITLE_3LINES
 !define MUI_FINISHPAGE_RUN_TEXT "Run ${APPNAMEANDVERSION} now!"
-!define MUI_FINISHPAGE_RUN "$INSTDIR\openrct2.exe"
+!define MUI_FINISHPAGE_RUN "$INSTDIR\${OPENRCT2_EXE}"
 !define MUI_FINISHPAGE_LINK "Visit the OpenRCT2 site for more information"
 !define MUI_FINISHPAGE_LINK_LOCATION "${APPURLLINK}"
 !define MUI_FINISHPAGE_NOREBOOTSUPPORT
@@ -139,12 +155,14 @@ Section "!OpenRCT2" Section1
     Call unix2dos
 
     ; Copy executable
-    File /oname=openrct2.exe ${BINARY_DIR}\openrct2.exe
-    File /oname=openrct2.dll ${BINARY_DIR}\openrct2.dll
+    File /oname=${OPENRCT2_EXE} ${BINARY_DIR}\${OPENRCT2_EXE}
+!ifdef OPENRCT2_DLL
+    File /oname=${OPENRCT2_DLL} ${BINARY_DIR}\${OPENRCT2_DLL}
+!endif
 
     ; Create the Registry Entries
     WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "Comments" "Visit ${APPURLLINK}"
-    WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "DisplayIcon" "$INSTDIR\openrct2.exe,0"
+    WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "DisplayIcon" "$INSTDIR\${OPENRCT2_EXE},0"
     WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "DisplayName" "OpenRCT2 ${APPVERSION}"
     WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "DisplayVersion" "${APPVERSION}"
     WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "HelpLink" "${APPURLLINK}"
@@ -157,9 +175,9 @@ Section "!OpenRCT2" Section1
     WriteRegStr HKEY_LOCAL_MACHINE "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenRCT2" "Version" "${APPVERSIONINTERNAL}"
 
     !insertmacro MUI_STARTMENU_WRITE_BEGIN "OpenRCT2"
-    CreateShortCut "$DESKTOP\OpenRCT2.lnk" "$INSTDIR\openrct2.exe"
+    CreateShortCut "$DESKTOP\OpenRCT2.lnk" "$INSTDIR\${OPENRCT2_EXE}"
     CreateDirectory "$SMPROGRAMS\$SHORTCUTS"
-    CreateShortCut "$SMPROGRAMS\$SHORTCUTS\OpenRCT2.lnk" "$INSTDIR\openrct2.exe"
+    CreateShortCut "$SMPROGRAMS\$SHORTCUTS\OpenRCT2.lnk" "$INSTDIR\${OPENRCT2_EXE}"
     CreateShortCut "$SMPROGRAMS\$SHORTCUTS\Uninstall.lnk" "$INSTDIR\uninstall.exe"
     CreateShortCut "$SMPROGRAMS\$SHORTCUTS\Readme.lnk" "$INSTDIR\Readme.txt"
     CreateShortCut "$SMPROGRAMS\$SHORTCUTS\Changelog.lnk" "$INSTDIR\Changelog.txt"
@@ -201,23 +219,23 @@ Section "Uninstall"
     Delete "$SMPROGRAMS\$SHORTCUTS\Contributors.lnk"
 
     ; Clean up OpenRCT2 dir
+    Delete "$INSTDIR\curl-ca-bundle.crt"
     Delete "$INSTDIR\changelog.txt"
+    Delete "$INSTDIR\known_issues.txt"
+    Delete "$INSTDIR\licence.txt"
     Delete "$INSTDIR\readme.txt"
     Delete "$INSTDIR\contributors.md"
-    Delete "$INSTDIR\openrct2.exe"
-    Delete "$INSTDIR\openrct2.dll"
-    Delete "$INSTDIR\licence.txt"
+    Delete "$INSTDIR\${OPENRCT2_EXE}"
+!ifdef OPENRCT2_DLL
+    Delete "$INSTDIR\${OPENRCT2_DLL}"
+!endif
     Delete "$INSTDIR\INSTALL.LOG"
-    Delete "$INSTDIR\crash.log"
-    Delete "$INSTDIR\crash.dmp"
 
     ; Data files
-    Delete "$INSTDIR\data\language\*.txt"
-    Delete "$INSTDIR\data\title\*.*"
+    RMDir /r "$INSTDIR\data"
 
     ; Remove remaining directories
     RMDir "$SMPROGRAMS\$SHORTCUTS"
-    RMDir "$INSTDIR\data"
     RMDir "$INSTDIR"
 
 SectionEnd
@@ -285,13 +303,13 @@ FunctionEnd
 ;-------------------------------------------------------------------------------
 ; Check whether OpenRCT2 is running
 Function CheckOpenRCT2Running
-    IfFileExists "$INSTDIR\openrct2.exe" 0 Done
+    IfFileExists "$INSTDIR\${OPENRCT2_EXE}" 0 Done
 Retry:
-    FindProcDLL::FindProc "openrct2.exe"
+    FindProcDLL::FindProc "${OPENRCT2_EXE}"
     Pop $R0
     IntCmp $R0 1 0 Done
     ClearErrors
-    Delete "$INSTDIR\openrct2.exe"
+    Delete "$INSTDIR\${OPENRCT2_EXE}"
     IfErrors 0 Done
     ClearErrors
     MessageBox MB_RETRYCANCEL|MB_ICONEXCLAMATION "OpenRCT2 is running. Please close it and retry." IDRETRY Retry
diff --git a/distribution/windows/win32.txt b/distribution/windows/win32.txt
deleted file mode 100644
index a33ea783b6..0000000000
--- a/distribution/windows/win32.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-!define APPBITS 32          ; Define number of bits for the architecture
-!define EXTRA_VERSION "Vista, 7, 8.1 and 10"
-!define APPARCH "win32"     ; Define the application architecture
-!define BINARY_DIR "${PATH_ROOT}bin"
-InstallDir "$PROGRAMFILES32\OpenRCT2\"
diff --git a/openrct2.proj b/openrct2.proj
index 546a9e0936..4dd7b65276 100644
--- a/openrct2.proj
+++ b/openrct2.proj
@@ -165,7 +165,10 @@
 
     <!-- Create the installer -->
     <Message Text="Building Windows Installer (NSIS script)" Importance="high" />
-    <Exec Command="makensis /DOUTFILE=$(PublishInstallerExe) /DAPPV_EXTRA=$(VersionExtra) /DVERSION_INCLUDE=$(DistDir)windows\win32.txt $(NsisScript)"
+    <Exec Command="makensis /DOUTFILE=$(PublishInstallerExe) ^
+         /DAPPV_EXTRA=$(VersionExtra) ^
+         /DPLATFORM=$(Platform) ^
+         $(NsisScript)"
           StandardOutputImportance="normal" />
 
     <!-- Sign the installer -->