diff --git a/Config.in b/Config.in
index 3601ea8cc1e0588513166a502dd2c8ee95feb0be..33da8679f3a16d59c55aa7a0e9bc3792d569ae2b 100644
--- a/Config.in
+++ b/Config.in
@@ -216,7 +216,7 @@ menu "Libretro Cores"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dice/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dinothawr/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dirksimple/Config.in"
-        source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dolphin/Config.in"		
+        source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dolphin/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-dosbox-pure/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-easyrpg/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-ecwolf/Config.in"
@@ -234,6 +234,7 @@ menu "Libretro Cores"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-geargrafx/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-gearsystem/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-genesisplusgx/Config.in"
+        source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-genesisplusgx-ex/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-genesisplusgxwide/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-geolith/Config.in"
         source "$BR2_EXTERNAL_RECALBOX_PATH/package/libretro-gong/Config.in"
diff --git a/configs/recalbox-odroidgo2_defconfig b/configs/recalbox-odroidgo2_defconfig
index 64725a7a7c352b8e9ab50c4b79f977758ef493e0..e02d3747eec96b9af151a7cfa351ee98e8d61346 100644
--- a/configs/recalbox-odroidgo2_defconfig
+++ b/configs/recalbox-odroidgo2_defconfig
@@ -232,6 +232,7 @@ BR2_PACKAGE_LIBRETRO_GAMBATTE=y
 BR2_PACKAGE_LIBRETRO_GEARCOLECO=y
 BR2_PACKAGE_LIBRETRO_GEARSYSTEM=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGX=y
+BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGXWIDE=y
 BR2_PACKAGE_LIBRETRO_GEOLITH=y
 BR2_PACKAGE_LIBRETRO_GONG=y
diff --git a/configs/recalbox-rg353x_defconfig b/configs/recalbox-rg353x_defconfig
index 691a04d3265b8e9e5c1aac5d0c42879d261c31d1..d2879e8608366b3458d2c1698fd4faf6858198db 100644
--- a/configs/recalbox-rg353x_defconfig
+++ b/configs/recalbox-rg353x_defconfig
@@ -222,6 +222,7 @@ BR2_PACKAGE_LIBRETRO_GAMBATTE=y
 BR2_PACKAGE_LIBRETRO_GEARCOLECO=y
 BR2_PACKAGE_LIBRETRO_GEARSYSTEM=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGX=y
+BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGXWIDE=y
 BR2_PACKAGE_LIBRETRO_GEOLITH=y
 BR2_PACKAGE_LIBRETRO_GONG=y
diff --git a/configs/recalbox-rpi4_64_defconfig b/configs/recalbox-rpi4_64_defconfig
index 40ddd8f25575cee464feaea8a7812210e74f0b76..3f9ab65d720ae197d5c06705135708fd12123835 100644
--- a/configs/recalbox-rpi4_64_defconfig
+++ b/configs/recalbox-rpi4_64_defconfig
@@ -264,6 +264,7 @@ BR2_PACKAGE_LIBRETRO_GAMBATTE=y
 BR2_PACKAGE_LIBRETRO_GEARCOLECO=y
 BR2_PACKAGE_LIBRETRO_GEARSYSTEM=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGX=y
+BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGXWIDE=y
 BR2_PACKAGE_LIBRETRO_GEOLITH=y
 BR2_PACKAGE_LIBRETRO_GONG=y
diff --git a/configs/recalbox-rpi5_64_defconfig b/configs/recalbox-rpi5_64_defconfig
index c6fe2646be9fa2d5d9e81dc4c290107840b13876..10c4853db8bfab5c49a4bf05dac9b6b4ff34fb9a 100644
--- a/configs/recalbox-rpi5_64_defconfig
+++ b/configs/recalbox-rpi5_64_defconfig
@@ -265,6 +265,7 @@ BR2_PACKAGE_LIBRETRO_GAMBATTE=y
 BR2_PACKAGE_LIBRETRO_GEARCOLECO=y
 BR2_PACKAGE_LIBRETRO_GEARSYSTEM=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGX=y
+BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGXWIDE=y
 BR2_PACKAGE_LIBRETRO_GEOLITH=y
 BR2_PACKAGE_LIBRETRO_GONG=y
diff --git a/configs/recalbox-x86_64_defconfig b/configs/recalbox-x86_64_defconfig
index d99a53dc4498b9c1560ab9a27cd06df5ad9c515d..1cdedfca8a38dd39d134fa29b84c02bc0c6b9942 100644
--- a/configs/recalbox-x86_64_defconfig
+++ b/configs/recalbox-x86_64_defconfig
@@ -305,6 +305,7 @@ BR2_PACKAGE_LIBRETRO_GAMBATTE=y
 BR2_PACKAGE_LIBRETRO_GEARCOLECO=y
 BR2_PACKAGE_LIBRETRO_GEARSYSTEM=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGX=y
+BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX=y
 BR2_PACKAGE_LIBRETRO_GENESISPLUSGXWIDE=y
 BR2_PACKAGE_LIBRETRO_GEOLITH=y
 BR2_PACKAGE_LIBRETRO_GONG=y
diff --git a/package/libretro-genesisplusgx-ex/Config.in b/package/libretro-genesisplusgx-ex/Config.in
new file mode 100644
index 0000000000000000000000000000000000000000..7da6186175983a84b502d9564c7499ee5b269945
--- /dev/null
+++ b/package/libretro-genesisplusgx-ex/Config.in
@@ -0,0 +1,11 @@
+config BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX
+	bool "libretro-genesisplusgx-ex"
+	depends on BR2_PACKAGE_RETROARCH
+	depends on BR2_INSTALL_LIBSTDCPP
+	help
+	  Expanded MAXROMSIZE for Sega Channel Revival.
+
+	  http://github.com/BillyTimeGames/Genesis-Plus-GX-Expanded-Rom-Size
+
+comment "LIBRETRO_GENESISPLUSGX_EX needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP
diff --git a/package/libretro-genesisplusgx-ex/libretro-genesisplusgx-ex.mk b/package/libretro-genesisplusgx-ex/libretro-genesisplusgx-ex.mk
new file mode 100644
index 0000000000000000000000000000000000000000..d40769bb6bacc07c12890b93039b97e721f70ce4
--- /dev/null
+++ b/package/libretro-genesisplusgx-ex/libretro-genesisplusgx-ex.mk
@@ -0,0 +1,27 @@
+################################################################################
+#
+# GENESIS-PLUS-GX-EX
+#
+################################################################################
+
+# Commit of 2025/07/07
+LIBRETRO_GENESISPLUSGX_EX_VERSION = dea3528cc0e3f54098e1fb91e3ae7e0e5d90a590
+LIBRETRO_GENESISPLUSGX_EX_SITE = $(call github,BillyTimeGames,Genesis-Plus-GX-Expanded-Rom-Size,$(LIBRETRO_GENESISPLUSGX_EX_VERSION))
+LIBRETRO_GENESISPLUSGX_EX_LICENSE = COPYRIGHT
+LIBRETRO_GENESISPLUSGX_EX_LICENSE_FILES = LICENSE.txt
+LIBRETRO_GENESISPLUSGX_EX_NON_COMMERCIAL = y
+
+define LIBRETRO_GENESISPLUSGX_EX_BUILD_CMDS
+	$(SED) "s|-O2|-O3|g" $(@D)/Makefile.libretro
+	CFLAGS="$(TARGET_CFLAGS) $(COMPILER_COMMONS_CFLAGS_SO)" \
+		CXXFLAGS="$(TARGET_CXXFLAGS) $(COMPILER_COMMONS_CXXFLAGS_SO)" \
+		LDFLAGS="$(TARGET_LDFLAGS) $(COMPILER_COMMONS_LDFLAGS_SO)" \
+		$(MAKE) CXX="$(TARGET_CXX)" CC="$(TARGET_CC)" -C $(@D) -f Makefile.libretro platform="$(RETROARCH_LIBRETRO_BOARD)"
+endef
+
+define LIBRETRO_GENESISPLUSGX_EX_INSTALL_TARGET_CMDS
+	$(INSTALL) -D $(@D)/genesis_plus_gx_libretro.so \
+		$(TARGET_DIR)/usr/lib/libretro/genesisplusgx_ex_libretro.so
+endef
+
+$(eval $(generic-package))
diff --git a/package/recalbox-romfs2/systems/megadrive/system.ini b/package/recalbox-romfs2/systems/megadrive/system.ini
index 6b1a989529f79f5c9a94255f8e4c5c79a2b58f4a..4bb518137cda48abb7efed1d7d0eeb6753f860ef 100644
--- a/package/recalbox-romfs2/systems/megadrive/system.ini
+++ b/package/recalbox-romfs2/systems/megadrive/system.ini
@@ -85,3 +85,15 @@ netplay = 1
 softpatching = 0
 compatibility = high
 speed = high
+
+[core.4]
+package = BR2_PACKAGE_LIBRETRO_GENESISPLUSGX_EX
+priority = 5
+emulator = "libretro"
+core = "genesisplusgx_ex"
+extensions = ".68k .bin .gen .md .mdx .smd .zip .7z"
+netplay = 1
+softpatching = 1
+compatibility = high
+speed = high
+crt.available = 1
\ No newline at end of file