diff --git a/games/srb2/doinst.sh b/games/srb2/doinst.sh
index 696d35bad7..65c7e2eeb9 100644
--- a/games/srb2/doinst.sh
+++ b/games/srb2/doinst.sh
@@ -1,4 +1,9 @@
-
 if [ -x /usr/bin/update-desktop-database ]; then
   /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
 fi
+
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache -f usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
diff --git a/games/srb2/srb2.SlackBuild b/games/srb2/srb2.SlackBuild
index 4d9d59d754..526ac57f9a 100644
--- a/games/srb2/srb2.SlackBuild
+++ b/games/srb2/srb2.SlackBuild
@@ -6,10 +6,15 @@
 
 # Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20230714 bkw: updated for v2.2.11.
+# - new deps (see .info file).
+# - cmake sed stuff to allow building without net access.
+# - new-style icons.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=srb2
-VERSION=${VERSION:-2.2.10}
+VERSION=${VERSION:-2.2.11}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -91,6 +96,12 @@ find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
 sed -i 's,usr/games,usr/share/games,g' \
        src/sdl/i_system.c src/sdl/i_ttf.c
 
+# 20230714 bkw: cmake silliness. it wants to download Ccache.cmake to
+# support ccache on Linux. on Windows, it seems to support ccache
+# without external dependency... and it turns out, this support works
+# on Linux as well. So:
+sed -i '/CMAKE_HOST_SYSTEM_NAME/s,STREQ.*,MATCHES Linux),' CMakeLists.txt
+
 mkdir -p build
 cd build
   cmake \
@@ -99,6 +110,7 @@ cd build
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DLIB_SUFFIX=${LIBDIRSUFFIX} \
     -DMAN_INSTALL_DIR=/usr/man \
+    -DUSE_CCACHE=ON \
     -DCMAKE_BUILD_TYPE=Release ..
   make VERBOSE=1
   #make install/strip DESTDIR=$PKG # don't bother, it's broken
@@ -109,11 +121,22 @@ mkdir -p $PKG/usr/games $PKG/usr/share/games/SRB2 \
          $PKG/usr/share/pixmaps $PKG/usr/share/applications \
          $PKG/usr/doc/$PRGNAM-$VERSION
 # as of 2.2.8 the binary's name changed.
+# 20230714 bkw: ...and it changed again in 2.2.11.
+[ -x build/bin/lsdl$PRGNAM-$VERSION ] || mv build/bin/lsdl$PRGNAM build/bin/lsdl$PRGNAM-$VERSION
 install -s -m0755 build/bin/lsdl$PRGNAM-$VERSION $PKG/usr/games
 ln -s lsdl$PRGNAM-$VERSION $PKG/usr/games/lsdl$PRGNAM
 ln -s lsdl$PRGNAM-$VERSION $PKG/usr/games/$PRGNAM
 install -m0644 assets/LICENSE* assets/README* $PKG/usr/doc/$PRGNAM-$VERSION
-install -m0644 $PRGNAM.png $PKG/usr/share/pixmaps
+
+hicolor=$PKG/usr/share/icons/hicolor
+for px in 16 22 32 48 64 128 256; do
+  sz=${px}x${px}
+  dir=$hicolor/$sz/apps
+  mkdir -p $dir
+  convert -resize $sz $PRGNAM.png $dir/$PRGNAM.png
+done
+
+ln -s ../icons/hicolor/48x48/apps/$PRGNAM.png $PKG/usr/share/pixmaps/$PRGNAM.png
 
 echo -n "Copying data files: "
 ( cd assets/installer
diff --git a/games/srb2/srb2.info b/games/srb2/srb2.info
index ed0286396c..4fc21718b3 100644
--- a/games/srb2/srb2.info
+++ b/games/srb2/srb2.info
@@ -1,12 +1,12 @@
 PRGNAM="srb2"
-VERSION="2.2.10"
+VERSION="2.2.11"
 HOMEPAGE="https://www.srb2.org/"
-DOWNLOAD="https://github.com/STJr/SRB2/archive/SRB2_release_2.2.10/SRB2-SRB2_release_2.2.10.tar.gz \
-          https://github.com/STJr/SRB2/releases/download/SRB2_release_2.2.10/SRB2-v2210-Full.zip"
-MD5SUM="02feaf4480b8205a05aa2c14293f242a \
-        92c68194d6e48eb7314d60f0318309b9"
+DOWNLOAD="https://github.com/STJr/SRB2/archive/SRB2_release_2.2.11/SRB2-SRB2_release_2.2.11.tar.gz \
+          https://github.com/STJr/SRB2/releases/download/SRB2_release_2.2.11/SRB2-v2211-Full.zip"
+MD5SUM="bcb3493b8668dadd8f9bfb10d3325fd6 \
+        d356b7e3db4520355b142b39c51cc8a8"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES=""
+REQUIRES="libgme libopenmpt"
 MAINTAINER="B. Watson"
 EMAIL="urchlay@slackware.uk"