diff --git a/lang/english.txt b/lang/english.txt
index 0748cd9d..00cc01cd 100644
--- a/lang/english.txt
+++ b/lang/english.txt
@@ -234,7 +234,7 @@ TRAY_TOOLTIP="RMB=Menu, LBM/MMB=Exit"
 TRAY_PAUSE="Pause/unpause active window in 5 seconds"
 # SINCE "v2.4.0"
 GUI_USESLR="Use Steam Linux Runtime"
-DESC_USESLR="Use Steam Linux Runtime requested by compatibility tool, if available - May need to be manually from Steam if unavailable"
+DESC_USESLR="Use Steam Linux Runtime requested by compatibility tool, if available - May need to be manually installed from Steam if unavailable"
 # SINCE "v2.4.1"
 # SINCE "v2.4.2"
 GUI_USEWINDECO="Use window decoration (requires restart)"
@@ -1279,3 +1279,5 @@ NOTY_FSGDBAW="Fetching SteamGridDB Artwork for 'XXX'"
 NOTY_FSGDBAWINVALID="Cannot fetch SteamGridDB Artwork, must provide AppID, Game ID, or Game Name!"
 GUI_GSMOUSESENSITIVITY="Mouse Sensitivity"
 DESC_GSMOUSESENSITIVITY="configurable mouse sensitivity, multiply mouse movement by specified decimal number amount"
+GUI_IGNORECOMPATSLR="Ignore Native Linux Steam Linux Runtime from Compatibility Tool"
+DESC_IGNORECOMPATSLR="ignore Steam Linux Runtime for native games selected either by you or by Valve Testing as a Compatibility Tool and let SteamTinkerLaunch find it instead. For example, ignore Steam Linux Runtime 3.0 selected by Valve Testing and let SteamTinkerLaunch find and use Steam Linux Runtime 1.0 instead. This can have MAJOR impacts on compatibility, and has NO EFFECT for games using Proton"
diff --git a/steamtinkerlaunch b/steamtinkerlaunch
index 7479c6e8..b37c03b6 100755
--- a/steamtinkerlaunch
+++ b/steamtinkerlaunch
@@ -7,7 +7,7 @@
 PREFIX="/usr"
 PROGNAME="SteamTinkerLaunch"
 NICEPROGNAME="Steam Tinker Launch"
-PROGVERS="v14.0.20240420-1"
+PROGVERS="v14.0.20240421-1 (ignore-compat-tool-slr)"
 PROGCMD="${0##*/}"
 PROGINTERNALPROTNAME="Proton-stl"
 SHOSTL="stl"
@@ -3187,6 +3187,7 @@ function setDefaultCfgValues {
 		if [ -z "$KEEPSTLOPEN" ]						; then	KEEPSTLOPEN="0"; fi
 		if [ -z "$USESLR" ]								; then	USESLR="1"; fi
 		if [ -z "$FORCESLR" ]							; then	FORCESLR="0"; fi
+		if [ -z "$IGNORECOMPATSLR" ]					; then	IGNORECOMPATSLR="0"; fi
 		if [ -z "$USEREAP" ]							; then	USEREAP="1"; fi
 		if [ -z "$FORCEREAP" ]							; then	FORCEREAP="0"; fi
 		if [ -z "$USEPROTON" ]							; then	USEPROTON="$(getDefaultProton)"; fi
@@ -3765,6 +3766,8 @@ function saveCfg {
 			echo "USESLR=\"$USESLR\""
 			echo "## $DESC_FORCESLR"
 			echo "FORCESLR=\"$FORCESLR\""
+			echo "## $DESC_IGNORECOMPATSLR"
+			echo "IGNORECOMPATSLR=\"$IGNORECOMPATSLR\""
 			echo "## $DESC_USEREAP"
 			echo "USEREAP=\"$USEREAP\""
 			echo "## $DESC_FORCEREAP"
@@ -5707,6 +5710,7 @@ function AllSettingsEntriesDummyFunction {
 --field="     $GUI_USEPROTON!$DESC_USEPROTON ('USEPROTON')":CB "$(cleanDropDown  "${USEPROTON/#-/ -}" "$PROTYADLIST")" `#CAT_Proton` `#MENU_GAME` \
 --field="     $GUI_USESLR!$DESC_USESLR ('USESLR')":CHK "${USESLR/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_FORCESLR!$DESC_FORCESLR ('FORCESLR')":CHK "${FORCESLR/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GAME` \
+--field="     $GUI_IGNORECOMPATSLR!$DESC_IGNORECOMPATSLR ('IGNORECOMPATSLR')":CHK "${IGNORECOMPATSLR/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_USEREAP!$DESC_USEREAP ('USEREAP')":CHK "${USEREAP/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_FORCEREAP!$DESC_FORCEREAP ('FORCEREAP')":CHK "${FORCEREAP/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_AUTOLASTPROTON!$DESC_AUTOLASTPROTON ('AUTOLASTPROTON')":CHK "${AUTOLASTPROTON/#-/ -}" `#CAT_Proton` `#SUB_Checkbox` `#MENU_GLOBAL` \
@@ -21130,7 +21134,7 @@ function setSLRReap {
 		#
 		# In this case, we want to take the SLR given to us by the compatibility tool and use that
 		# HAVESLRCT=1 will only be true if the SLR is coming from the compatibility tool
-		if [ "$HAVESLRCT" -eq 1 ] && [ "$USESLR" -eq 1 ]; then
+		if [ "$HAVESLRCT" -eq 1 ] && [ "$USESLR" -eq 1 ] && [ "$IGNORECOMPATSLR" -eq 0 ]; then
 			writelog "INFO" "${FUNCNAME[0]} - ## SLR is enabled via USESLR=$USESLR - prepending SLR from Compatibility Tool to the current launch command"
 			writelog "INFO" "${FUNCNAME[0]} - ## This can happen if a game is running with a Steam Linux Runtime compatibility tool enabled"
 			SLRCMD=("${RUNSLRCT[@]}")
@@ -21147,6 +21151,12 @@ function setSLRReap {
 			writelog "INFO" "${FUNCNAME[0]} - ## SLR is enabled via USESLR=$USESLR - prepending SLR from command line to the current launch command"
 			writelog "INFO" "${FUNCNAME[0]} - RUNSLR is '${RUNSLR[*]}'"
 			SLRCMD=("${RUNSLR[@]}")
+		# If the user enables "IGNORECOMPATSLR", disable HAVESLR so that the below logic for Pressure Vessel Funtime will kick in and fetch the SLR manually
+		elif [ "$HAVESLRCT" -eq 1 ] && [ "$USESLR" -eq 1 ] && [ "$IGNORECOMPATSLR" -eq 1 ]; then
+			writelog "INFO" "${FUNCNAME[0]} - ## SLR was found in incoming Start Command, likely from a compatibility tool, but 'IGNORECOMPATSLR' is '${IGNORECOMPATSLR}'"
+			writelog "INFO" "${FUNCNAME[0]} - ## Ignoring this incoming SLR from the selected Steam Linux Runtime Compatibility Tool and instead letting SteamTinkerLaunch find the Steam Linux Runtime instead"
+			writelog "WARN" "${FUNCNAME[0]} - ## Note that some games require a specific Steam Linux Runtime version, and if a given Steam Linux Runtime version that SteamTinkerLaunch looks for is not found, or if the version found does not match what a game might require, launching may fail"
+			HAVESLR=0
 		fi
 
 		# Legacy case to ignore SLR gotten from commandline
@@ -21157,6 +21167,7 @@ function setSLRReap {
 
 		# SLR fetching (from toolmanifest.vdf / native Linux SLR AppID)
 		# ---------------
+		# TODO This could probably be refactored to have less indentation and return early...
 		RUNFORCESLR=0
 		if [[ ( "$HAVESLR" -eq 0 && "$USESLR" -eq 1 ) || -n "$OVERRIDESLR" ]]; then
 			if [ -n "$LASTSLR" ] && [ -f "${LASTSLR% --verb*}" ] && [ "$FORCESLR" -eq 1 ]; then