diff --git a/.gitignore b/.gitignore
index ff512f3..881257c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ sources/zstd
 sources/webshims
 sources/minetest
 sources/irrlichtmt
+sources/minetest_game
diff --git a/build_all.sh b/build_all.sh
index 24fed8a..f972263 100755
--- a/build_all.sh
+++ b/build_all.sh
@@ -26,8 +26,10 @@ emcc --clear-cache --clear-ports
 ./build_curl.sh      # uses webshims, openssl, zlib
 
 # Minetest
-./build_fsroot.sh
 ./build_minetest.sh
 
+# Virtual file system
+./build_fsroot.sh
+
 # Finished product
 ./build_www.sh
diff --git a/build_fsroot.sh b/build_fsroot.sh
index 6b48fc7..333765b 100755
--- a/build_fsroot.sh
+++ b/build_fsroot.sh
@@ -8,43 +8,42 @@
 
 source common.sh
 
-# TODO: Use `make package` for this instead.
-MTDIR="minetest-5.5.1-win64"
-unpack_source $MTDIR
-
 pushd "$BUILD_DIR"
 
 rm -rf fsroot
 mkdir fsroot
+cp -a "minetest-install" fsroot/minetest
 
-# Copy root certificates for OpenSSL
-mkdir -p fsroot/etc/ssl/certs
-# ca-certificates.crt may be a symlink
-cat /etc/ssl/certs/ca-certificates.crt > fsroot/etc/ssl/certs/ca-certificates.crt
-
-mv $MTDIR fsroot/minetest
 
+#############################################
 pushd fsroot/minetest
 
-# Don't need the Windows exe/dlls
-rm -rf bin
-
+rm -rf bin unix
 # Emscripten strips empty directories. But bin/ needs to be present so that
 # realpath() works on relative paths starting with bin/../
 mkdir bin
 echo "This is here to ensure bin exists" > bin/readme.txt
 
-# Replace these directories with the ones from the source directory
-for I in client builtin clientmods games/devtest textures; do
-  rm -rf "$I"
-  cp -r "$MINETEST_REPO/$I" "$I"
-done
-
 # Copy the irrlicht shaders
 cp -r "$IRRLICHT_REPO/media/Shaders" client/shaders/Irrlicht
 
+rm -rf games/minetest_game
+cp -a "$SOURCES_DIR"/minetest_game games
+cd games/minetest_game
+rm -rf ".git" ".github"
+
 popd
 
+
+#############################################
+# Copy root certificates for OpenSSL
+pushd fsroot
+mkdir -p etc/ssl/certs
+# May be a symlink, use cat to copy contents
+cat /etc/ssl/certs/ca-certificates.crt > etc/ssl/certs/ca-certificates.crt
+popd
+
+
 # Make fsroot.tar
 rm -f fsroot.tar
 pushd fsroot
diff --git a/build_minetest.sh b/build_minetest.sh
index 04e6554..cf8c71b 100755
--- a/build_minetest.sh
+++ b/build_minetest.sh
@@ -57,8 +57,10 @@ if ! $INCREMENTAL; then
       -DEGL_INCLUDE_DIR="$DUMMY_INCLUDE_DIR" \
       -DCURL_LIBRARY="$INSTALL_DIR/lib/libcurl.a" \
       -DCURL_INCLUDE_DIR="$INSTALL_DIR/include" \
+      -DCMAKE_INSTALL_PREFIX="$BUILD_DIR/minetest-install" \
       -G "Unix Makefiles" \
       "$SOURCES_DIR/minetest"
 fi
 
-emmake make
+rm -rf "$BUILD_DIR/minetest-install"
+emmake make install
diff --git a/fetch_sources.sh b/fetch_sources.sh
index 07e3414..9f1abe5 100755
--- a/fetch_sources.sh
+++ b/fetch_sources.sh
@@ -16,7 +16,6 @@ getsource "https://downloads.xiph.org/releases/vorbis/libvorbis-1.3.7.tar.gz" 0e
 getsource "https://www.sqlite.org/src/tarball/698edb77/SQLite-698edb77.tar.gz" b1568dc5d17788b9dd9575ecd224b3f7985b51764bc2f34f4808d851332840ef
 getsource "https://www.openssl.org/source/openssl-1.1.1n.tar.gz" 40dceb51a4f6a5275bde0e6bf20ef4b91bfc32ed57c0552e2e8e15463372b17a
 getsource "https://curl.se/download/curl-7.82.0.tar.bz2" 46d9a0400a33408fd992770b04a44a7434b3036f2e8089ac28b57573d59d371f
-getsource "https://github.com/minetest/minetest/releases/download/5.5.1/minetest-5.5.1-win64.zip" 9be48fb4126312b0d8fd048d1ab06d59b3109f6fe037fcd5ab65b99507e68a5f
 getsource "https://www.libarchive.org/downloads/libarchive-3.6.1.tar.xz" 5a411aceb978f43e626f0c2d1812ddd8807b645ed892453acabd532376c148e6
 
 # These are never checked into the repo, since they are separate git repos.
@@ -27,6 +26,9 @@ getrepo libpng "https://git.code.sf.net/p/libpng/code" a37d4836519517bdce6cb9d95
 getrepo freetype "https://gitlab.freedesktop.org/freetype/freetype.git" a8e4563c3418ed74d39019a6c5e2122d12c8f56f
 getrepo zstd "https://github.com/facebook/zstd.git" e47e674cd09583ff0503f0f6defd6d23d8b718d3
 
+# Minetest Game
+getrepo minetest_game "https://github.com/minetest/minetest_game.git" 99a719309559b632af65756f380496aa269d4b4a
+
 # These repos are part of the fork
 getrepo webshims "https://github.com/paradust7/webshims.git" 91c3fe85d2cb7f85cc8e19d3f53dc8f252a69ff7
 getrepo minetest "https://github.com/paradust7/minetest.git" 4f32398cdf2b245bd8661f1ff8b0efc74c148cc9
diff --git a/sources/minetest-5.5.1-win64.zip b/sources/minetest-5.5.1-win64.zip
deleted file mode 100644
index 2d57a61..0000000
Binary files a/sources/minetest-5.5.1-win64.zip and /dev/null differ