diff --git a/map_count_check.sh b/map_count_check.sh
new file mode 100644
index 0000000..777c9df
--- /dev/null
+++ b/map_count_check.sh
@@ -0,0 +1,66 @@
+#!/usr/bin/env sh
+
+# If Zenity is not available, print a message and exit
+if ! command -v zenity &> /dev/null; then
+	echo "WARNING: Zenity not found. Please see the installer's instructions on how to set vm.max_map_count manually, your you WILL experience crashes!"
+	exit 0
+fi
+
+# If vm.max_map_count is already set, no need to do anything
+if [ "$(cat /proc/sys/vm/max_map_count)" -ge 16777216 ]; then
+    exit 0
+fi
+
+dialog() {
+    zenity "$@" --icon-name='lutris' --width="400" --title="Star Citizen memory requirements check"
+}
+
+final_check() {
+    if [ "$(cat /proc/sys/vm/max_map_count)" -lt 16777216 ]; then
+        dialog --warning --text="As far as this script can detect, your system is not configured to allow Star Citizen to use more than ~8GB or memory. You will most likely experience crashes."
+    fi
+}
+
+trap final_check EXIT
+
+if grep -E -x -q "vm.max_map_count" /etc/sysctl.conf /etc/sysctl.d/*; then  
+    if dialog --question --text="It looks like you already configured your system to work with Star Citizen, and saved the setting to persist across reboots. However, for some reason the persistence part did not work.\n\nFor now, would you like to enable the setting again until the next reboot?"
+    then
+        pkexec sh -c 'sysctl -w vm.max_map_count=16777216'
+    fi
+    exit 0
+fi
+      
+once="Change setting until next reboot"
+persist="Change setting and persist after reboot"
+manual="Show me the commands; I'll handle it myself"
+
+if dialog --question --text="Running Star Citizen requires changing a system setting. Otherwise, the game will crash after on areas with lots of geometry. As far as this script can detect, the setting has not been changed yet.\nNote: The setting is called vm.max_map_count and sould be set to 16777216 (minimum).\n\nWould you like to change the setting now?"; then
+    # I tried to embed the command in the dialog and run the output, but
+    # parsing variables with embedded quotes is an excercise in frustration.
+    RESULT=$(dialog --list --radiolist --height="200" --column=" " --column="Command" "TRUE" "$once" \ "FALSE" "$persist" \ "FALSE" "$manual")
+    case "$RESULT" in
+        "$once")
+            pkexec sh -c 'sysctl -w vm.max_map_count=16777216'
+            ;;
+        "$persist")
+        	if [ -d "/etc/sysctl.d" ]; then
+        		pkexec sh -c 'echo "vm.max_map_count = 16777216" >> /etc/sysctl.d/20-max_map_count.conf && sysctl -p'
+        	else
+                pkexec sh -c 'echo "vm.max_map_count = 16777216" >> /etc/sysctl.conf && sysctl -p'
+            fi
+            ;;
+        "$manual")
+	        if [ -d "/etc/sysctl.d" ]; then
+            	dialog --info --no-wrap --text="To change the setting (a kernel parameter) until next boot, run:\n\nsudo sh -c 'sysctl -w vm.max_map_count=16777216'\n\nTo persist the setting between reboots, run:\n\nsudo sh -c 'echo \"vm.max_map_count = 16777216\" >> /etc/sysctl.d/20-max_map_count.conf && sysctl -p'"
+            else
+            	dialog --info --no-wrap --text="To change the setting (a kernel parameter) until next boot, run:\n\nsudo sh -c 'sysctl -w vm.max_map_count=16777216'\n\nTo persist the setting between reboots, run:\n\nsudo sh -c 'echo \"vm.max_map_count = 16777216\" >> /etc/sysctl.conf && sysctl -p'"
+            fi
+            # Anyone who wants to do it manually doesn't need another warning
+            trap - EXIT
+            ;;
+        *)
+            echo "Dialog canceled or unknown option selected: $RESULT"
+            ;;
+      esac
+      fi