diff --git a/descriptions/Engine.Nuclear_Engine.md b/descriptions/Engine.Nuclear_Engine.md
new file mode 100644
index 000000000..cdfec14bf
--- /dev/null
+++ b/descriptions/Engine.Nuclear_Engine.md
@@ -0,0 +1 @@
+[**Nuclear Engine**](https://toxicdev.ru) is a custom game engine runtime used by TXC games, with Vulkan rendering and a dedicated `NuclearEngine.dll` runtime marker.
diff --git a/rules.ini b/rules.ini
index e65448e65..69c673958 100644
--- a/rules.ini
+++ b/rules.ini
@@ -158,6 +158,9 @@ NovaLogic_Engine[] = (?:^|/)resource\.pff$
 NovaLogic_Engine[] = (?:^|/)Update\.wiz$
 NScripter[] = ^arc\.nsa$
 NScripter[] = ^nscript\.dat$
+Nuclear_Engine[] = (?:^|/)NuclearEngine\.dll$
+Nuclear_Engine[] = (?:^|/)Assets/Engine/nuclear-engine\.json$
+Nuclear_Engine[] = (?:^|/)Assets/Engine/NuclearEngine\.marker$
 OGRE = (?:^|/)OgreMain(?:_x64)?\.dll$
 Panda3D = (?:^|/)libpanda\.
 Phaser = (?:^|/)phaser(?:\.min)?\.js$
diff --git a/tests/types/Engine.Nuclear_Engine.txt b/tests/types/Engine.Nuclear_Engine.txt
new file mode 100644
index 000000000..909e3c464
--- /dev/null
+++ b/tests/types/Engine.Nuclear_Engine.txt
@@ -0,0 +1,9 @@
+/Assets/Engine/NuclearEngine.marker
+/Assets/Engine/nuclear-engine.json
+/NuclearEngine.dll
+Assets/Engine/NuclearEngine.marker
+Assets/Engine/nuclear-engine.json
+NuclearEngine.dll
+game/Assets/Engine/NuclearEngine.marker
+game/Assets/Engine/nuclear-engine.json
+game/NuclearEngine.dll
diff --git a/tests/types/_NonMatchingTests.txt b/tests/types/_NonMatchingTests.txt
index 08e8e6b52..3a0605d60 100644
--- a/tests/types/_NonMatchingTests.txt
+++ b/tests/types/_NonMatchingTests.txt
@@ -20,6 +20,11 @@ notactuallylime-legacy.dll
 notactuallylime-legacy.ndll
 notactuallyfna.dll
 fna.dllwhoops
+NuclearEngine.dll.bak
+NuclearEngine_dll
+OtherNuclearEngine.dllx
+Assets/Engine/nuclear-engine.json.bak
+Assets/Engine/NuclearEngine_mark
 entry.dll
 libsentry.dl
 sentry.dl