diff --git a/run-each-mc.sh b/run-each-mc.sh
new file mode 100644
index 0000000..1a824e1
--- /dev/null
+++ b/run-each-mc.sh
@@ -0,0 +1,16 @@
+#!/bin/env sh
+
+if [ $# == 0 ] ; then
+  echo "Error: must supply the command to run for every MC version"
+  exit 1
+fi
+
+mcVersions=$(find ./gradle -maxdepth 1 -type d -name 'mc-*' | sed -n -e 's#.*mc-\([0-9.]\+\).*#\1#g' -e p)
+echo "Discovered MC versions:
+$mcVersions"
+
+for mcVersion in $mcVersions ; do
+  echo "Running \"$*\" for MC version $mcVersion"
+  sed gradle.properties -i -e "s#\(minecraft\.version\.descriptor = \).*#\1$mcVersion#"
+  "$@"
+done