diff --git a/resources/systems/linux/es_systems.xml b/resources/systems/linux/es_systems.xml
index c97fe3dcc..880c1fec4 100644
--- a/resources/systems/linux/es_systems.xml
+++ b/resources/systems/linux/es_systems.xml
@@ -741,6 +741,7 @@
         <command label="SMS Plus GX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/smsplus_libretro.so %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/picodrive_libretro.so %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module gg %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Game Gear" %ROM%</command>
         <platform>gamegear</platform>
         <theme>gamegear</theme>
@@ -994,6 +995,7 @@
         <command label="Gearsystem">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/gearsystem_libretro.so %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/picodrive_libretro.so %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module sms %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Master System" %ROM%</command>
         <platform>mastersystem</platform>
         <theme>mastersystem</theme>
diff --git a/resources/systems/unix/es_systems.xml b/resources/systems/unix/es_systems.xml
index 38439647e..bfd09d106 100644
--- a/resources/systems/unix/es_systems.xml
+++ b/resources/systems/unix/es_systems.xml
@@ -730,6 +730,7 @@
         <command label="SMS Plus GX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/smsplus_libretro.so %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/picodrive_libretro.so %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module gg %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Game Gear" %ROM%</command>
         <platform>gamegear</platform>
         <theme>gamegear</theme>
@@ -980,6 +981,7 @@
         <command label="Gearsystem">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/gearsystem_libretro.so %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/picodrive_libretro.so %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module sms %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Master System" %ROM%</command>
         <platform>mastersystem</platform>
         <theme>mastersystem</theme>
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index fb38b69c2..f264b4dfe 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -735,6 +735,7 @@
         <command label="SMS Plus GX">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\smsplus_libretro.dll %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\picodrive_libretro.dll %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module gg %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Game Gear" %ROM%</command>
         <platform>gamegear</platform>
         <theme>gamegear</theme>
@@ -990,6 +991,7 @@
         <command label="Gearsystem">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\gearsystem_libretro.dll %ROM%</command>
         <command label="PicoDrive">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\picodrive_libretro.dll %ROM%</command>
         <command label="Mednafen (Standalone)">%EMULATOR_MEDNAFEN% -force_module sms %ROM%</command>
+        <command label="Mesen (Standalone)">%EMULATOR_MESEN% --fullscreen %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Master System" %ROM%</command>
         <platform>mastersystem</platform>
         <theme>mastersystem</theme>