diff --git a/es-app/assets/Windows_Portable_README.txt b/es-app/assets/Windows_Portable_README.txt
index 925c38486..090dc80ec 100644
--- a/es-app/assets/Windows_Portable_README.txt
+++ b/es-app/assets/Windows_Portable_README.txt
@@ -43,6 +43,8 @@ Emulators\RetroArch-Win64\retroarch.exe
 Emulators\RetroArch\retroarch.exe
 Emulators\3dSen\3dSen.exe
 Emulators\AdvanceMAME\advmame.exe
+Emulators\Altirra\Altirra64.exe
+Emulators\Altirra\Altirra.exe
 Emulators\AppleWin\AppleWin.exe
 Emulators\ArcadeFlashWeb\ArcadeFlashWeb.exe
 Emulators\ares\ares.exe
diff --git a/resources/systems/windows/es_find_rules.xml b/resources/systems/windows/es_find_rules.xml
index 17f33c7c9..7d64d4fca 100644
--- a/resources/systems/windows/es_find_rules.xml
+++ b/resources/systems/windows/es_find_rules.xml
@@ -62,6 +62,19 @@
             <entry>%ESPATH%\..\Emulators\AdvanceMAME\advmame.exe</entry>
         </rule>
     </emulator>
+    <emulator name="ALTIRRA">
+        <!-- Atari 8-bit computer emulator Altirra -->
+        <rule type="systempath">
+            <entry>Altirra64.exe</entry>
+            <entry>Altirra.exe</entry>
+        </rule>
+        <rule type="staticpath">
+            <entry>%ESPATH%\Emulators\Altirra\Altirra64.exe</entry>
+            <entry>%ESPATH%\Emulators\Altirra\Altirra.exe</entry>
+            <entry>%ESPATH%\..\Emulators\Altirra\Altirra64.exe</entry>
+            <entry>%ESPATH%\..\Emulators\Altirra\Altirra.exe</entry>
+        </rule>
+    </emulator>
     <emulator name="APPLEWIN">
         <!-- Apple II emulator AppleWin -->
         <rule type="systempath">
diff --git a/resources/systems/windows/es_find_rules_portable.xml b/resources/systems/windows/es_find_rules_portable.xml
index 626c67070..0ed950f73 100644
--- a/resources/systems/windows/es_find_rules_portable.xml
+++ b/resources/systems/windows/es_find_rules_portable.xml
@@ -35,6 +35,15 @@
             <entry>%ESPATH%\..\Emulators\AdvanceMAME\advmame.exe</entry>
         </rule>
     </emulator>
+    <emulator name="ALTIRRA">
+        <!-- Atari 8-bit computer emulator Altirra -->
+        <rule type="staticpath">
+            <entry>%ESPATH%\Emulators\Altirra\Altirra64.exe</entry>
+            <entry>%ESPATH%\Emulators\Altirra\Altirra.exe</entry>
+            <entry>%ESPATH%\..\Emulators\Altirra\Altirra64.exe</entry>
+            <entry>%ESPATH%\..\Emulators\Altirra\Altirra.exe</entry>
+        </rule>
+    </emulator>
     <emulator name="APPLEWIN">
         <!-- Apple II emulator AppleWin -->
         <rule type="staticpath">
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index af6f37183..e1c414eed 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -205,6 +205,7 @@
         <command label="a5200">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\a5200_libretro.dll %ROM%</command>
         <command label="Atari800">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\atari800_libretro.dll %ROM%</command>
         <command label="Atari800 (Standalone)">%STARTDIR%=%EMUDIR% %EMULATOR_ATARI800% %ROM%</command>
+        <command label="Altirra (Standalone)">%EMULATOR_ALTIRRA% %INJECT%=%BASENAME%.commands %ROM%</command>
         <platform>atari5200</platform>
         <theme>atari5200</theme>
     </system>
@@ -225,6 +226,7 @@
         <extension>.a52 .A52 .atr .ATR .atx .ATX .bin .BIN .car .CAR .cas .CAS .cdm .CDM .rom .ROM .xex .XEX .xfd .XFD .7z .7Z .zip .ZIP</extension>
         <command label="Atari800">%STARTDIR%=%EMUDIR% %EMULATOR_RETROARCH% -L %CORE_RETROARCH%\atari800_libretro.dll %ROM%</command>
         <command label="Atari800 (Standalone)">%STARTDIR%=%EMUDIR% %EMULATOR_ATARI800% %ROM%</command>
+        <command label="Altirra (Standalone)">%EMULATOR_ALTIRRA% %INJECT%=%BASENAME%.commands %ROM%</command>
         <platform>atari800</platform>
         <theme>atari800</theme>
     </system>
@@ -276,6 +278,7 @@
         <extension>.a52 .A52 .atr .ATR .atx .ATX .bin .BIN .cas .CAS .cdm .CDM .xex .XEX .xfd .XFD .7z .7Z .zip .ZIP</extension>
         <command label="Atari800">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\atari800_libretro.dll %ROM%</command>
         <command label="Atari800 (Standalone)">%STARTDIR%=%EMUDIR% %EMULATOR_ATARI800% %ROM%</command>
+        <command label="Altirra (Standalone)">%EMULATOR_ALTIRRA% %INJECT%=%BASENAME%.commands %ROM%</command>
         <platform>atarixe</platform>
         <theme>atarixe</theme>
     </system>