diff --git a/appimage/alephone.desktop b/appimage/alephone.desktop
new file mode 100644
index 000000000..3311e9377
--- /dev/null
+++ b/appimage/alephone.desktop
@@ -0,0 +1,7 @@
+[Desktop Entry]
+Type=Application
+Name=Aleph One
+Exec=alephone
+Icon=alephone
+Categories=Game;
+
diff --git a/appimage/alephone.png b/appimage/alephone.png
new file mode 100644
index 000000000..1d43f8402
Binary files /dev/null and b/appimage/alephone.png differ
diff --git a/appimage/apprun-marathon-infinity.sh b/appimage/apprun-marathon-infinity.sh
new file mode 100644
index 000000000..b555704a7
--- /dev/null
+++ b/appimage/apprun-marathon-infinity.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+approot="$(realpath "$(dirname "$0")")"
+"$approot/usr/bin/alephone" "$approot/usr/share/Marathon Infinity"
diff --git a/appimage/apprun-marathon.sh b/appimage/apprun-marathon.sh
new file mode 100644
index 000000000..de3a12897
--- /dev/null
+++ b/appimage/apprun-marathon.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+approot="$(realpath "$(dirname "$0")")"
+"$approot/usr/bin/alephone" "$approot/usr/share/Marathon"
diff --git a/appimage/apprun-marathon2.sh b/appimage/apprun-marathon2.sh
new file mode 100644
index 000000000..47dd93235
--- /dev/null
+++ b/appimage/apprun-marathon2.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+approot="$(realpath "$(dirname "$0")")"
+"$approot/usr/bin/alephone" "$approot/usr/share/Marathon 2"
diff --git a/appimage/build.sh b/appimage/build.sh
new file mode 100755
index 000000000..b138d797e
--- /dev/null
+++ b/appimage/build.sh
@@ -0,0 +1,126 @@
+#!/bin/bash
+set -e
+
+cat <<EOL >/dev/null
+sudo apt install --no-install-recommends \
+  build-essential autoconf autoconf-archive nasm wget git fuse3 \
+  libboost-all-dev libsdl2-dev libsdl2-image-dev libsdl2-net-dev libsdl2-ttf-dev \
+  libzzip-dev zlib1g-dev libpng-dev libvpx-dev libvorbis-dev \
+  libcurl4-gnutls-dev libminiupnpc-dev libopenal-dev libsndfile1-dev \
+  libglu1-mesa-dev
+EOL
+
+set -x
+
+cd "$(dirname "$0")"
+
+#ffmpeg_tag="n6.0"
+
+export LD_LIBRARY_PATH="$PWD/ffmpeg/usr/lib:$LD_LIBRARY_PATH"
+export PKG_CONFIG_PATH="$PWD/ffmpeg/usr/lib/pkgconfig"
+
+# build FFmpeg from source to avoid unneeded dependencies
+# https://github.com/Aleph-One-Marathon/mac-frameworks/blob/master/ffmpeg/ffmpeg.mk
+
+#if [ ! -d ffmpeg ]; then
+#    git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg
+#    cd ffmpeg
+#    git checkout $ffmpeg_tag
+#    cd ..
+#fi
+if [ ! -f ffmpeg/usr/lib/pkgconfig/libavcodec.pc ]; then
+    cd ffmpeg
+    ./configure --prefix="$PWD/usr" \
+        --disable-programs \
+        --disable-doc \
+        --enable-gpl \
+        --enable-version3 \
+        --disable-static \
+        --enable-shared \
+        --enable-postproc \
+        --enable-libvorbis \
+        --enable-libvpx \
+        --disable-everything \
+        --enable-muxer=webm \
+        --enable-encoder=libvorbis \
+        --enable-encoder=libvpx_vp8 \
+        --enable-demuxer=aiff \
+        --enable-demuxer=mp3 \
+        --enable-demuxer=mpegps \
+        --enable-demuxer=mpegts \
+        --enable-demuxer=mpegtsraw \
+        --enable-demuxer=mpegvideo \
+        --enable-demuxer=ogg \
+        --enable-demuxer=wav \
+        --enable-parser=mpegaudio \
+        --enable-parser=mpegvideo \
+        --enable-decoder=adpcm_ima_wav \
+        --enable-decoder=adpcm_ms \
+        --enable-decoder=gsm \
+        --enable-decoder=gsm_ms \
+        --enable-decoder=mp1 \
+        --enable-decoder=mp1float \
+        --enable-decoder=mp2 \
+        --enable-decoder=mp2float \
+        --enable-decoder=mp3 \
+        --enable-decoder=mp3float \
+        --enable-decoder=mpeg1video \
+        --enable-decoder=pcm_alaw \
+        --enable-decoder=pcm_f32be \
+        --enable-decoder=pcm_f32le \
+        --enable-decoder=pcm_f64be \
+        --enable-decoder=pcm_f64le \
+        --enable-decoder=pcm_mulaw \
+        --enable-decoder=pcm_s8 \
+        --enable-decoder=pcm_s8_planar \
+        --enable-decoder=pcm_s16be \
+        --enable-decoder=pcm_s16le \
+        --enable-decoder=pcm_s16le_planar \
+        --enable-decoder=pcm_s24be \
+        --enable-decoder=pcm_s24le \
+        --enable-decoder=pcm_s32be \
+        --enable-decoder=pcm_s32le \
+        --enable-decoder=pcm_u8 \
+        --enable-decoder=theora \
+        --enable-decoder=vorbis \
+        --enable-decoder=vp8 \
+        --enable-protocol=file \
+    | tee config.log
+    make -j$(nproc)
+    make install
+    cd ..
+fi
+
+# build AlephOne
+if [ ! -f build/Source_Files/alephone ]; then
+    rm -rf build
+    mkdir build
+    cd build
+    test -f ../../configure || autoreconf -if ../..
+    CFLAGS=-O2 CXXFLAGS=-O2 LDFLAGS=-s ../../configure --without-smpeg
+    make -j$(nproc) V=0
+    #wget -q -O linuxdeploy.AppImage -c https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+    #chmod a+x linuxdeploy.AppImage
+    cd ..
+fi
+
+# create AppDirs
+rm -rf out
+mkdir -p out/appdir/usr/bin out/appdir/usr/share/doc/{alephone,ffmpeg}
+cp build/Source_Files/alephone out/appdir/usr/bin
+cp ../{AUTHORS,COPYING,THANKS} out/appdir/usr/share/doc/alephone
+cp ffmpeg/{*.md,MAINTAINERS,Changelog} out/appdir/usr/share/doc/ffmpeg
+cp -r out/appdir out/alephone.appdir
+cp -r out/appdir out/marathon.appdir
+cp -r out/appdir out/marathon2.appdir
+cp -r out/appdir out/marathon-infinity.appdir
+cp -r ../data/Scenarios/Marathon out/marathon.appdir/usr/share
+cp -r ../data/Scenarios/"Marathon 2" out/marathon2.appdir/usr/share
+cp -r ../data/Scenarios/"Marathon Infinity" out/marathon-infinity.appdir/usr/share
+
+# create AppImages
+cd out
+../linuxdeploy.AppImage -oappimage --appdir=alephone.appdir          -d../alephone.desktop          -i../alephone.png
+../linuxdeploy.AppImage -oappimage --appdir=marathon.appdir          -d../marathon.desktop          -i../marathon.png          --custom-apprun=../apprun-marathon.sh
+../linuxdeploy.AppImage -oappimage --appdir=marathon2.appdir         -d../marathon2.desktop         -i../marathon2.png         --custom-apprun=../apprun-marathon2.sh
+../linuxdeploy.AppImage -oappimage --appdir=marathon-infinity.appdir -d../marathon-infinity.desktop -i../marathon-infinity.png --custom-apprun=../apprun-marathon-infinity.sh
diff --git a/appimage/fetch-sources.sh b/appimage/fetch-sources.sh
new file mode 100755
index 000000000..c4e2aaefa
--- /dev/null
+++ b/appimage/fetch-sources.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+set -e
+set -x
+
+wget -q -O linuxdeploy.AppImage -c https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+chmod a+x linuxdeploy.AppImage
+
+#URL=https://git.ffmpeg.org/ffmpeg.git
+URL=https://github.com/FFmpeg/FFmpeg
+git clone --depth 1 $URL ffmpeg
+
+set +x
+set +e
+
+if [ "x$(ls ../data/Scenarios/Marathon)" = "x" ]; then
+    echo "Warning: no game files in \`../data/Scenarios'!"
+fi
\ No newline at end of file
diff --git a/appimage/marathon-infinity.desktop b/appimage/marathon-infinity.desktop
new file mode 100644
index 000000000..cfa55df80
--- /dev/null
+++ b/appimage/marathon-infinity.desktop
@@ -0,0 +1,7 @@
+[Desktop Entry]
+Type=Application
+Name=Marathon Infinity
+Exec=marathon-infinity
+Icon=marathon-infinity
+Categories=Game;
+
diff --git a/appimage/marathon-infinity.png b/appimage/marathon-infinity.png
new file mode 100644
index 000000000..24ecd26a0
Binary files /dev/null and b/appimage/marathon-infinity.png differ
diff --git a/appimage/marathon.desktop b/appimage/marathon.desktop
new file mode 100644
index 000000000..e279854d2
--- /dev/null
+++ b/appimage/marathon.desktop
@@ -0,0 +1,7 @@
+[Desktop Entry]
+Type=Application
+Name=Marathon
+Exec=marathon
+Icon=marathon
+Categories=Game;
+
diff --git a/appimage/marathon.png b/appimage/marathon.png
new file mode 100644
index 000000000..d08b5b6dc
Binary files /dev/null and b/appimage/marathon.png differ
diff --git a/appimage/marathon2.desktop b/appimage/marathon2.desktop
new file mode 100644
index 000000000..b0c5ac3dc
--- /dev/null
+++ b/appimage/marathon2.desktop
@@ -0,0 +1,7 @@
+[Desktop Entry]
+Type=Application
+Name=Marathon 2 - Durandal
+Exec=marathon2
+Icon=marathon2
+Categories=Game;
+
diff --git a/appimage/marathon2.png b/appimage/marathon2.png
new file mode 100644
index 000000000..a8067b618
Binary files /dev/null and b/appimage/marathon2.png differ