diff --git a/.travis.yml b/.travis.yml
index 80d3afdb5b..e4791043cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,8 @@ env:
     - OPENRCT2_CMAKE_OPTS="-DDISABLE_NETWORK=ON -DCMAKE_TOOLCHAIN_FILE=../CMakeLists_mingw.txt" TARGET=windows
     - OPENRCT2_CMAKE_OPTS="-DDISABLE_NETWORK=ON -DDISABLE_HTTP_TWITCH=ON -DCMAKE_TOOLCHAIN_FILE=../CMakeLists_mingw.txt" TARGET=windows
     - OPENRCT2_CMAKE_OPTS="-DDISABLE_HTTP_TWITCH=ON -DCMAKE_TOOLCHAIN_FILE=../CMakeLists_mingw.txt" TARGET=windows
+    - TARGET=docker32
+    - OPENRCT2_CMAKE_OPTS="-DDISABLE_NETWORK=ON -DDISABLE_HTTP_TWITCH=ON" TARGET=docker32
 
 sudo: required
 
diff --git a/build.sh b/build.sh
index 8a60258a87..acf81627f5 100755
--- a/build.sh
+++ b/build.sh
@@ -5,20 +5,24 @@ set -e
 cachedir=.cache
 mkdir -p $cachedir
 
+# Sets default target to "linux", if none specified
+TARGET=${TARGET-linux}
+
 if [[ ! -d build ]]; then
 	mkdir -p build
 fi
 
-libversion=2
+# keep in sync with version in install.sh
+libversion=3
 libVFile="./libversion"
 libdir="./lib"
 currentversion=0
 needsdownload="true"
 
-if [ -f $libVFile ]; then 
-    while read line; do    
-        currentversion=$line  
-        continue 
+if [ -f $libVFile ]; then
+    while read line; do
+        currentversion=$line
+        continue
     done < $libVFile
 fi
 
@@ -27,40 +31,40 @@ if [ $currentversion -ge $libversion ]; then
 fi
 
 if [ ! -d $libdir ]; then
-    needsdownload="true"    
+    needsdownload="true"
 fi
-    
+
 if [[ "$needsdownload" = "true" ]]; then
-    echo "New libraries need to be downloaded, the script might ask you for sudo access password"
-    rm -rf ./lib
-    if [[ -f $cachedir/orctlibs.zip ]]; then 
-        rm -rf $cachedir/orctlibs.zip
-    fi
-    if [[ -d /usr/local/cross-tools/orctlibs ]]; then
-        sudo rm -rf /usr/local/cross-tools/orctlibs
-    fi
-     if [[ -d $cachedir/orctlibs ]]; then
-        rm -rf $cachedir/orctlibs
-    fi
-    curl https://dl.dropboxusercontent.com/u/1323345/orctlibs.zip -o $cachedir/orctlibs.zip
-    mkdir -p $cachedir/orctlibs
-    pushd $cachedir/orctlibs
-        unzip -uaq ../orctlibs.zip 
-    popd
-    sudo mkdir -p /usr/local/cross-tools/orctlibs
-    mkdir -p lib
-    sudo cp -rf $cachedir/orctlibs/glob/* /usr/local/cross-tools/orctlibs/.
-    cp -rf $cachedir/orctlibs/local/* ./lib/. 
-    echo $libversion > $libVFile
+	echo "New libraries need to be downloaded. Clearing cache and calling ./install.sh"
+	rm -rf ./lib
+	if [[ -f $cachedir/orctlibs.zip ]]; then
+		rm -rf $cachedir/orctlibs.zip
+	fi
+	if [[ -d /usr/local/cross-tools/orctlibs ]]; then
+		sudo rm -rf /usr/local/cross-tools/orctlibs
+	fi
+	if [[ -d $cachedir/orctlibs ]]; then
+		rm -rf $cachedir/orctlibs
+	fi
+	./install.sh
+	echo $libversion > $libVFile
 fi
 
 pushd build
 	echo OPENRCT2_CMAKE_OPTS = $OPENRCT2_CMAKE_OPTS
-	cmake -DCMAKE_BUILD_TYPE=Debug $OPENRCT2_CMAKE_OPTS ..
-	make
+	if [[ $TARGET == "docker32" ]]
+	then
+		PARENT=`readlink -f ../`
+		chmod a+rwx `pwd`
+		chmod g+s `pwd`
+		docker run -u travis -v $PARENT:/work/openrct2 -w /work/openrct2/build -i -t janisozaur/openrct2:32bit-only bash -c "cmake ../ $OPENRCT2_CMAKE_OPTS && make"
+	else
+		cmake -DCMAKE_BUILD_TYPE=Debug $OPENRCT2_CMAKE_OPTS ..
+		make
+	fi
 popd
 
-if [[ ! -h openrct2.dll ]]; then 
+if [[ ! -h openrct2.dll ]]; then
     ln -s build/openrct2.dll openrct2.dll
 fi
 
@@ -74,4 +78,3 @@ if [[ -t 1 ]]; then
 else
     echo -e "\nDone! Run OpenRCT2 by typing:\n\nwine openrct2.exe\n"
 fi
- 
diff --git a/dockerfiles/32bit/Dockerfile b/dockerfiles/32bit/Dockerfile
new file mode 100644
index 0000000000..30ce06b4c4
--- /dev/null
+++ b/dockerfiles/32bit/Dockerfile
@@ -0,0 +1,29 @@
+FROM nfnty/arch-mini
+
+RUN pacman -Syyu --noconfirm
+RUN pacman -S --noconfirm git curl jshon expac yajl wget unzip cmake
+RUN pacman -S --noconfirm --needed base-devel
+
+RUN useradd -mg root travis
+RUN usermod -aG wheel travis
+RUN sed -i 's/# %wheel ALL=(ALL) NOPASSWD: ALL/%wheel ALL=(ALL) NOPASSWD: ALL/g' /etc/sudoers
+
+WORKDIR /tmp
+USER travis
+RUN curl -sLO https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h=package-query
+RUN mv PKGBUILD?h=package-query PKGBUILD
+RUN makepkg
+USER root
+RUN pacman --noconfirm -U *.pkg.tar.xz
+USER travis
+RUN curl -sLO https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h=yaourt
+RUN mv PKGBUILD?h=yaourt PKGBUILD
+RUN makepkg
+USER root
+RUN pacman --noconfirm -U *.pkg.tar.xz
+
+RUN pacman -R --noconfirm gcc
+RUN yes | pacman -S gcc-libs-multilib
+RUN pacman -S --noconfirm gcc-multilib
+USER travis
+RUN yaourt -S --noconfirm lib32-jansson lib32-curl lib32-sdl2 lib32-sdl2_ttf lib32-speex
diff --git a/Dockerfile b/dockerfiles/full/Dockerfile
similarity index 100%
rename from Dockerfile
rename to dockerfiles/full/Dockerfile
diff --git a/install.sh b/install.sh
index c1745a9f72..5bc150abb5 100755
--- a/install.sh
+++ b/install.sh
@@ -10,6 +10,85 @@ echo `uname`
 
 # Sets default target to "linux", if none specified
 TARGET=${TARGET-linux}
+# keep in sync with version in build.sh
+libversion=3
+libVFile="./libversion"
+
+function download_sdl {
+	if [[ ! -f $cachedir/SDL2-devel-${SDL2_PV}-mingw.tar.gz ]]; then
+		wget http://libsdl.org/release/SDL2-devel-${SDL2_PV}-mingw.tar.gz --output-document $cachedir/SDL2-devel-${SDL2_PV}-mingw.tar.gz;
+	fi
+	if [[ ! -f $cachedir/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz ]]; then
+		wget https://www.libsdl.org/projects/SDL_ttf/release/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz --output-document $cachedir/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz;
+	fi
+	if [[ ! -d $cachedir/SDL2-${SDL2_PV} ]]; then
+		pushd $cachedir
+			tar -xzf SDL2-devel-${SDL2_PV}-mingw.tar.gz
+		popd
+	fi
+	if [[ ! -d $cachedir/SDL2_ttf-${SDL2_TTF_PV} ]]; then
+		pushd $cachedir
+			tar -xzf SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz
+		popd
+	fi
+	# Apply platform patch
+	mingw_patch=libsdl2-mingw-2.0.3-fix-platform-detection-for-mingw.patch
+	if [[ ! -f $cachedir/$mingw_patch ]]; then
+		wget "https://github.com/anyc/anyc-overlay/raw/master/media-libs/libsdl2-mingw/files/$mingw_patch" --output-document $cachedir/$mingw_patch;
+
+		# XXX not sure how to make this idempotent.
+		pushd $cachedir/SDL2-${SDL2_PV}/i686-w64-mingw32/include/SDL2/
+			echo "Applying patch."
+			patch -p2 < ../../../../$mingw_patch
+		popd
+	fi
+}
+
+function download_libs {
+	if [[ ! -f $cachedir/orctlibs.zip ]]; then
+		curl https://dl.dropboxusercontent.com/u/1323345/orctlibs.zip -o $cachedir/orctlibs.zip;
+	fi
+	if [[ ! -d $cachedir/orctlibs ]]; then
+		mkdir -p $cachedir/orctlibs
+		pushd $cachedir/orctlibs
+			unzip -uaq ../orctlibs.zip
+		popd
+	fi
+}
+
+function install_cross_tools {
+	if [[ ! -d /usr/local/cross-tools ]]; then
+		sudo mkdir -p /usr/local/cross-tools
+	fi
+	if [[ ! -d /usr/local/cross-tools/i686-w64-mingw32 ]]; then
+		sudo cp -r $cachedir/SDL2-${SDL2_PV}/i686-w64-mingw32 /usr/local/cross-tools/
+		sudo cp -r $cachedir/SDL2_ttf-${SDL2_TTF_PV}/i686-w64-mingw32 /usr/local/cross-tools/
+	fi
+	if [[ ! -d /usr/local/cross-tools/orctlibs ]]; then
+		sudo mkdir -p /usr/local/cross-tools/orctlibs
+		sudo cp -rf $cachedir/orctlibs/glob/* /usr/local/cross-tools/orctlibs/.
+	fi
+}
+
+function install_pkg_config {
+	if [[ ! -f $cachedir/i686-w64-mingw32-pkg-config ]]; then
+		# If this fails to work because of newlines, be sure you are running this
+		# script with Bash, and not sh. We should really move this to a separate
+		# file.
+		echo -e "#!/bin/sh\nexport PKG_CONFIG_PATH=/usr/local/cross-tools/i686-w64-mingw32/lib/pkgconfig:/usr/local/cross-tools/orctlibs/lib/pkgconfig\npkg-config \$@" > $cachedir/i686-w64-mingw32-pkg-config;
+	fi
+
+	chmod +x $cachedir/i686-w64-mingw32-pkg-config
+	sudo cp $cachedir/i686-w64-mingw32-pkg-config /usr/local/bin/
+
+	ls -al /usr/local/bin | grep pkg-config
+	cat /usr/local/bin/i686-w64-mingw32-pkg-config
+}
+
+function install_local_libs {
+	mkdir -p lib
+	cp -rf $cachedir/orctlibs/local/* ./lib/.
+}
 
 echo TARGET = $TARGET
 
@@ -79,18 +158,18 @@ if [[ `uname` == "Darwin" ]]; then
         popd
     fi
 elif [[ `uname` == "Linux" ]]; then
-	if [[ ! -z "$TRAVIS" ]]; then
-		sudo dpkg --add-architecture i386
-	fi
-	sudo apt-get update
 	if [[ -z "$TRAVIS" ]]; then
 	    sudo apt-get install -y binutils-mingw-w64-i686 gcc-mingw-w64-i686 g++-mingw-w64-i686 cmake
 		if [[ -z "$DISABLE_G2_BUILD" ]]; then
 			sudo apt-get install -y wine
 		fi
 	else
+		# prevent build.sh from re-doing all the steps again
+		echo $libversion > $libVFile
 		case "$TARGET" in
 			"linux")
+				sudo dpkg --add-architecture i386
+				sudo apt-get update
 				sudo apt-get install -y --force-yes cmake libsdl2-dev:i386 libsdl2-ttf-dev:i386 gcc-4.8 pkg-config:i386 g++-4.8-multilib gcc-4.8-multilib libjansson-dev:i386 libspeex-dev:i386 libspeexdsp-dev:i386 libcurl4-openssl-dev:i386 libcrypto++-dev:i386
 				wget https://launchpad.net/ubuntu/+archive/primary/+files/libjansson4_2.7-1ubuntu1_i386.deb
 				wget https://launchpad.net/ubuntu/+archive/primary/+files/libjansson-dev_2.7-1ubuntu1_i386.deb
@@ -101,8 +180,12 @@ elif [[ `uname` == "Linux" ]]; then
 				export CXX=g++-4.8
 				;;
 			"windows")
+				sudo apt-get update
 				sudo apt-get install -y --force-yes binutils-mingw-w64-i686 gcc-mingw-w64-i686 g++-mingw-w64-i686 cmake
 				;;
+			"docker32")
+				docker pull janisozaur/openrct2:32bit-only
+				;;
 			*)
 				echo "unkown target $TARGET"
 				exit 1
@@ -110,75 +193,13 @@ elif [[ `uname` == "Linux" ]]; then
 	fi
 fi
 
+download_libs
+# Local libs are required for all targets
+install_local_libs
+
 if [[ $TARGET == "windows" ]]; then
-	if [[ ! -f $cachedir/SDL2-devel-${SDL2_PV}-mingw.tar.gz ]]; then
-		wget http://libsdl.org/release/SDL2-devel-${SDL2_PV}-mingw.tar.gz --output-document $cachedir/SDL2-devel-${SDL2_PV}-mingw.tar.gz;
-	fi
-	if [[ ! -f $cachedir/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz ]]; then
-		wget https://www.libsdl.org/projects/SDL_ttf/release/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz --output-document $cachedir/SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz;
-	fi
-	if [[ ! -d $cachedir/SDL2-${SDL2_PV} ]]; then
-		pushd $cachedir
-			tar -xzf SDL2-devel-${SDL2_PV}-mingw.tar.gz
-		popd
-	fi
-	if [[ ! -d $cachedir/SDL2_ttf-${SDL2_TTF_PV} ]]; then
-		pushd $cachedir
-			tar -xzf SDL2_ttf-devel-${SDL2_TTF_PV}-mingw.tar.gz
-		popd
-	fi
-	if [[ ! -f $cachedir/orctlibs.zip ]]; then
-		curl https://dl.dropboxusercontent.com/u/1323345/orctlibs.zip -o $cachedir/orctlibs.zip;
-	fi
-	if [[ ! -d $cachedir/orctlibs ]]; then
-		mkdir -p $cachedir/orctlibs
-		pushd $cachedir/orctlibs
-			unzip -uaq ../orctlibs.zip
-			ls -lR .
-		popd
-	fi
-
-	# Apply platform patch
-	mingw_patch=libsdl2-mingw-2.0.3-fix-platform-detection-for-mingw.patch
-	if [[ ! -f $cachedir/$mingw_patch ]]; then
-		wget "https://github.com/anyc/anyc-overlay/raw/master/media-libs/libsdl2-mingw/files/$mingw_patch" --output-document $cachedir/$mingw_patch;
-
-		# XXX not sure how to make this idempotent.
-		pushd $cachedir/SDL2-${SDL2_PV}/i686-w64-mingw32/include/SDL2/
-			echo "Applying patch."
-			patch -p2 < ../../../../$mingw_patch
-		popd
-	fi
-
-	if [[ ! -d /usr/local/cross-tools ]]; then
-		sudo mkdir -p /usr/local/cross-tools
-	fi
-	if [[ ! -d /usr/local/cross-tools/i686-w64-mingw32 ]]; then
-		sudo cp -r $cachedir/SDL2-${SDL2_PV}/i686-w64-mingw32 /usr/local/cross-tools/
-		sudo cp -r $cachedir/SDL2_ttf-${SDL2_TTF_PV}/i686-w64-mingw32 /usr/local/cross-tools/
-	fi
-	if [[ ! -d /usr/local/cross-tools/orctlibs ]]; then
-		sudo mkdir -p /usr/local/cross-tools/orctlibs
-		mkdir -p lib
-		sudo cp -rf $cachedir/orctlibs/glob/* /usr/local/cross-tools/orctlibs/.
-		cp -rf $cachedir/orctlibs/local/* ./lib/.
-	fi
-
-	if [[ ! -f $cachedir/i686-w64-mingw32-pkg-config ]]; then
-		# If this fails to work because of newlines, be sure you are running this
-		# script with Bash, and not sh. We should really move this to a separate
-		# file.
-		echo -e "#!/bin/sh\nexport PKG_CONFIG_PATH=/usr/local/cross-tools/i686-w64-mingw32/lib/pkgconfig:/usr/local/cross-tools/orctlibs/lib/pkgconfig\npkg-config \$@" > $cachedir/i686-w64-mingw32-pkg-config;
-		for i in /usr/local/cross-tools/orctlibs/lib/pkgconfig/*.pc
-		do
-			cat $i
-		done
-	fi
-
-	chmod +x $cachedir/i686-w64-mingw32-pkg-config
-	sudo cp $cachedir/i686-w64-mingw32-pkg-config /usr/local/bin/
-
-	ls -al /usr/local/bin | grep pkg-config
-	cat /usr/local/bin/i686-w64-mingw32-pkg-config
+	download_sdl
+	install_cross_tools
+	install_pkg_config
 # $TARGET == "windows"
 fi
diff --git a/pre-build.ps1 b/pre-build.ps1
index 3c7f56ce94..959028d5fe 100644
--- a/pre-build.ps1
+++ b/pre-build.ps1
@@ -1,5 +1,5 @@
 #init
-$libversion = 2
+$libversion = 3
 $path = Split-Path $Script:MyInvocation.MyCommand.Path
 $zip = $path+'\orctlibs.zip'
 $libs = $path+'\lib'