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Support/INSTALL_windows.md

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+# Installation
+
+## Dependencies
+
+* Install [MSYS2](https://www.msys2.org/)
+
+```bash
+# Start the *MSYS2 MinGW 32-bit* terminal.
+pacman -Sy git make mingw-w64-i686-gcc mingw-w64-i686-binutils
+ln -s /mingw32/i686-w64-mingw32/bin/dlltool.exe /usr/bin/i686-w64-mingw32-dlltool.exe
+```
+
+## Building
+
+```bash
+git clone https://github.com/galaxyhaxz/devilution
+cd devilution
+cp /path/to/diablo_game_dir/diabloui.dll .
+cp /path/to/diablo_game_dir/storm.dll .
+make
+```
+
+## Install
+
+```bash
+cp devilution.exe /path/to/diablo_game_dir/
+```