diff --git a/.gitignore b/.gitignore
index 9cdc82d..1ddc2bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ demos/
 *.log
 *.log.???
 missingasset.csv
+mod_*.csv
 *.iwd
diff --git a/build_iwd.sh b/build_iwd.sh
index 803ec21..e1ec5b5 100755
--- a/build_iwd.sh
+++ b/build_iwd.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 if [ -z "${WORKSPACE}" ]; then
 	export WORKSPACE="$(pwd)"
 fi
@@ -9,7 +9,7 @@ iwd_files()
 		! -path "*.git*" \
 		! -name "README*" \
 		! -name "mod.ff" \
-		! -name "mod.csv" \
+		! -name "mod*.csv" \
 		! -name "missingasset.csv" \
 		! -name "*.md" \
 		! -name "*.log*" \
@@ -19,14 +19,14 @@ iwd_files()
 		sed "s:${WORKSPACE}/::g"
 }
 
-gen_iwd_filelist()
-{
-	iwd_filelist="$(mktemp)"
-	iwd_files > "$iwd_filelist"
-	echo $iwd_filelist
-}
+iwd_filelist="$(mktemp)"
+iwd_files > "$iwd_filelist"
+
+modversion_txt_file="mod_version.csv"
+git describe --tags --always --dirty > "$modversion_txt_file"
+echo "$modversion_txt_file" >> "$iwd_filelist"
 
-iwd_filelist="$(gen_iwd_filelist)"
 rm -f "hns.iwd"
 7z a -tzip -mx9 "hns.iwd" @"$iwd_filelist"
-rm -f "$iwd_filelist"
+
+rm -f "$iwd_filelist" "$modversion_txt_file"
diff --git a/maps/mp/gametypes/hns.gsc b/maps/mp/gametypes/hns.gsc
index 71c737e..646aedb 100644
--- a/maps/mp/gametypes/hns.gsc
+++ b/maps/mp/gametypes/hns.gsc
@@ -2,6 +2,7 @@
 #include maps\mp\_utility;
 #include maps\mp\perks\_perks;
 #include maps\mp\gametypes\_hud_util;
+#include maps\mp\mods\_modversion;
 #include maps\mp\mods\disableClassMenu;
 #include maps\mp\mods\helpingHints;
 
@@ -152,11 +153,21 @@ main()
 	maps\mp\gametypes\_tweakables::setTweakableValue("hardpoint", "allowhelicopter", "scr_hardpoint_allowhelicopter", 0);
 
 	level disableClassMenu();
+	level showVersionWatermark();
 
 	initGameFlags();
 	gameFlagInit("seekers_released", false);
 }
 
+showVersionWatermark()
+{
+	versionHudElem = createServerFontString("objective", 0.75);
+	versionHudElem setPoint("BOTTOMRIGHT", "BOTTOMRIGHT", -4, -4);
+	versionHudElem setText("Version: " + getModVersionString());
+	versionHudElem.hideWhenInMenu = false;
+	versionHudElem.alpha = 0.5;
+}
+
 onPrecacheGametype()
 {
 	logPrint("onPrecacheGametype called");
diff --git a/maps/mp/mods/_modversion.gsc b/maps/mp/mods/_modversion.gsc
new file mode 100644
index 0000000..05e58e8
--- /dev/null
+++ b/maps/mp/mods/_modversion.gsc
@@ -0,0 +1,31 @@
+loadModVersionInfo()
+{
+	if (IsDefined(level.modVersionInfo))
+		return;
+
+	level.modVersionInfo = SpawnStruct();
+
+	// Open and read mod_version.csv
+	filenum = OpenFile("mod_version.csv", "read");
+	if (filenum == -1)
+	{
+		level.modVersionInfo.hasVersion = false;
+		return;
+	}
+	verinfo = StrTok(FReadLn(filenum), ",");
+	CloseFile(filenum);
+
+	assert(versionString.size >= 1);
+	level.modVersionInfo.hasVersion = true;
+	level.modVersionInfo.version = versionString[0];
+}
+
+getModVersionString()
+{
+	loadModVersionInfo();
+
+	if (!IsDefined(level.modVersionInfo.version))
+		return "";
+
+	return level.modVersionInfo.version;
+}