diff --git a/pkgs/misc/emulators/retroarch/cores.nix b/pkgs/misc/emulators/retroarch/cores.nix
index e0b9c6ff33b9..c8a1b8983f32 100644
--- a/pkgs/misc/emulators/retroarch/cores.nix
+++ b/pkgs/misc/emulators/retroarch/cores.nix
@@ -224,6 +224,12 @@ in
     makefile = "Makefile";
   };
 
+  blastem = mkLibRetroCore {
+    core = "blastem";
+    description = "Port of BlastEm to libretro";
+    license = lib.licenses.gpl3Only;
+  };
+
   bluemsx = mkLibRetroCore {
     core = "bluemsx";
     description = "Port of BlueMSX to libretro";
diff --git a/pkgs/misc/emulators/retroarch/hashes.json b/pkgs/misc/emulators/retroarch/hashes.json
index 9ca689d469d4..9eab19b29ad1 100644
--- a/pkgs/misc/emulators/retroarch/hashes.json
+++ b/pkgs/misc/emulators/retroarch/hashes.json
@@ -83,6 +83,13 @@
         "sha256": "XHTzXlTt8op0bDLNn833Unt57zclXowlLhG3qvWwjXQ=",
         "fetchSubmodules": false
     },
+    "blastem": {
+        "owner": "libretro",
+        "repo": "blastem",
+        "rev": "0786858437ed71996f43b7af0fbe627eb88152fc",
+        "sha256": "uEP5hSgLAle1cLv/EM7D11TJMAggu7pqWxfrUt3rhEg=",
+        "fetchSubmodules": false
+    },
     "bluemsx": {
         "owner": "libretro",
         "repo": "bluemsx-libretro",
diff --git a/pkgs/misc/emulators/retroarch/update.py b/pkgs/misc/emulators/retroarch/update.py
index 2a623cb5062f..3c1ea2b755b1 100755
--- a/pkgs/misc/emulators/retroarch/update.py
+++ b/pkgs/misc/emulators/retroarch/update.py
@@ -22,6 +22,7 @@ CORES = {
     "beetle-supergrafx": {"repo": "beetle-supergrafx-libretro"},
     "beetle-vb": {"repo": "beetle-vb-libretro"},
     "beetle-wswan": {"repo": "beetle-wswan-libretro"},
+    "blastem": {"repo": "blastem"},
     "bluemsx": {"repo": "bluemsx-libretro"},
     "bsnes": {"repo": "bsnes-libretro"},
     "bsnes-hd": {"repo": "bsnes-hd", "owner": "DerKoun"},