diff --git a/es-app/assets/Windows_Portable_README.txt b/es-app/assets/Windows_Portable_README.txt
index 77b230274..52001863e 100644
--- a/es-app/assets/Windows_Portable_README.txt
+++ b/es-app/assets/Windows_Portable_README.txt
@@ -68,6 +68,7 @@ Emulators\scummvm\scummvm.exe
 Emulators\sdl2trs\sdl2trs64.exe
 Emulators\SheepShaver\SheepShaver.exe
 Emulators\SimCoupe\SimCoupe.exe
+Emulators\simple64\simple64-gui.exe
 Emulators\snes9x\snes9x-x64.exe
 Emulators\solarus\solarus-run.exe
 Emulators\Supermodel\Supermodel.exe
diff --git a/resources/systems/unix/es_find_rules.xml b/resources/systems/unix/es_find_rules.xml
index 2703973d2..0e064c73b 100644
--- a/resources/systems/unix/es_find_rules.xml
+++ b/resources/systems/unix/es_find_rules.xml
@@ -505,6 +505,17 @@
             <entry>~/bin/simcoupe/simcoupe</entry>
         </rule>
     </emulator>
+    <emulator name="SIMPLE64">
+        <!-- Nintendo 64 emulator simple64 -->
+        <rule type="systempath">
+            <entry>simple64-gui</entry>
+            <entry>io.github.simple64.simple64</entry>
+        </rule>
+        <rule type="staticpath">
+            <entry>/var/lib/flatpak/exports/bin/io.github.simple64.simple64</entry>
+            <entry>~/.local/share/flatpak/exports/bin/io.github.simple64.simple64</entry>
+        </rule>
+    </emulator>
     <emulator name="SNES9X">
         <!-- Super Nintendo emulator Snes9x -->
         <rule type="systempath">
diff --git a/resources/systems/unix/es_systems.xml b/resources/systems/unix/es_systems.xml
index 26a8e7d5b..032eca661 100644
--- a/resources/systems/unix/es_systems.xml
+++ b/resources/systems/unix/es_systems.xml
@@ -881,6 +881,7 @@
         <command label="Mupen64Plus-Next">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/mupen64plus_next_libretro.so %ROM%</command>
         <command label="Mupen64Plus (Standalone)">%EMULATOR_MUPEN64PLUS% --nogui %ROM%</command>
         <command label="ParaLLEl N64">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%/parallel_n64_libretro.so %ROM%</command>
+        <command label="simple64 (Standalone)">%EMULATOR_SIMPLE64% --nogui %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Nintendo 64" %ROM%</command>
         <platform>n64</platform>
         <theme>n64</theme>
diff --git a/resources/systems/windows/es_find_rules.xml b/resources/systems/windows/es_find_rules.xml
index baf62aeab..a2666e9ac 100644
--- a/resources/systems/windows/es_find_rules.xml
+++ b/resources/systems/windows/es_find_rules.xml
@@ -537,6 +537,17 @@
             <entry>%ESPATH%\..\SimCoupe\SimCoupe.exe</entry>
         </rule>
     </emulator>
+    <emulator name="SIMPLE64">
+        <!-- Nintendo 64 emulator simple64 -->
+        <rule type="systempath">
+            <entry>simple64-gui.exe</entry>
+        </rule>
+        <rule type="staticpath">
+            <entry>%ESPATH%\Emulators\simple64\simple64-gui.exe</entry>
+            <entry>%ESPATH%\simple64\simple64-gui.exe</entry>
+            <entry>%ESPATH%\..\simple64\simple64-gui.exe</entry>
+        </rule>
+    </emulator>
     <emulator name="SNES9X">
         <!-- Super Nintendo emulator Snes9x -->
         <rule type="systempath">
diff --git a/resources/systems/windows/es_find_rules_portable.xml b/resources/systems/windows/es_find_rules_portable.xml
index 26866aff9..a6f77dbbc 100644
--- a/resources/systems/windows/es_find_rules_portable.xml
+++ b/resources/systems/windows/es_find_rules_portable.xml
@@ -360,6 +360,14 @@
             <entry>%ESPATH%\..\SimCoupe\SimCoupe.exe</entry>
         </rule>
     </emulator>
+    <emulator name="SIMPLE64">
+        <!-- Nintendo 64 emulator simple64 -->
+        <rule type="staticpath">
+            <entry>%ESPATH%\Emulators\simple64\simple64-gui.exe</entry>
+            <entry>%ESPATH%\simple64\simple64-gui.exe</entry>
+            <entry>%ESPATH%\..\simple64\simple64-gui.exe</entry>
+        </rule>
+    </emulator>
     <emulator name="SNES9X">
         <!-- Super Nintendo emulator Snes9x -->
         <rule type="staticpath">
diff --git a/resources/systems/windows/es_systems.xml b/resources/systems/windows/es_systems.xml
index dd54ba8ee..2bb3d035a 100644
--- a/resources/systems/windows/es_systems.xml
+++ b/resources/systems/windows/es_systems.xml
@@ -885,6 +885,7 @@
         <command label="Mupen64Plus-Next">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\mupen64plus_next_libretro.dll %ROM%</command>
         <command label="Mupen64Plus (Standalone)">%EMULATOR_MUPEN64PLUS% --fullscreen %ROM%</command>
         <command label="ParaLLEl N64">%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\parallel_n64_libretro.dll %ROM%</command>
+        <command label="simple64 (Standalone)">%EMULATOR_SIMPLE64% --nogui %ROM%</command>
         <command label="Project64 (Standalone)">%EMULATOR_PROJECT64% %ROM%</command>
         <command label="ares (Standalone)">%EMULATOR_ARES% --fullscreen --system "Nintendo 64" %ROM%</command>
         <platform>n64</platform>