**Ubuntu** dependencies:
- sudo apt-get install autoconf build-essential curl git libtool libgmp-dev libjpeg-turbo8-dev libsdl2-dev libxpm-dev xserver-xorg-dev zlib1g-dev
+ sudo apt-get install autoconf build-essential curl git libtool libgmp-dev libjpeg-turbo8-dev libsdl2-dev libxpm-dev xserver-xorg-dev zlib1g-dev unzip
Note: On Debian, use `libjpeg62-turbo-dev` if `libjpeg-turbo8-dev` isn’t available in the package repositories.
By default, Windows has no real environment to handle the necessary scripting and compiling tools for building Xonotic. So, what we have to do is install something called [MSYS2](http://www.msys2.org) to allow us to have a similar environment as on Linux. Download 64 bit version of MSYS2 (msys2-x86_64-xxxxxx.exe) and follow installation instructions.
-Once you have completed the installation, launch the MSYS2 shell by running `mingw64.exe` (instead of the default msys2.exe) by default located at `C:\msys64` and install the needed **dependencies** with this command:
+Once you have completed the installation, close the current MSYS2 shell and launch a MSYS2 MINGW64 shell by running mingw64.exe (instead of the default msys2.exe) located at C:\msys64 and install the needed dependencies with this command:
pacman --needed -S git curl zip unzip p7zip make automake autoconf libtool gcc gmp-devel mingw-w64-x86_64-{toolchain,gmp,SDL2,libjpeg-turbo,libpng,libogg}