diff --git a/descriptions/Engine.Kex.md b/descriptions/Engine.Kex.md
new file mode 100644
index 000000000..4e5bfdb34
--- /dev/null
+++ b/descriptions/Engine.Kex.md
@@ -0,0 +1 @@
+[**Kex Engine**](https://www.nightdivestudios.com/kex/) is a proprietary cross-platform game engine framework originally created by  Samuel "Kaiser" Villarreal for Nightdive Studios.
diff --git a/rules.ini b/rules.ini
index 410fcdcfd..c3e899f0b 100644
--- a/rules.ini
+++ b/rules.ini
@@ -70,6 +70,7 @@ idTech5 = \.streamed$
 idTech6[] = \.mega2$
 idTech6[] = \.texdb$
 idTech7 = \.streamdb$
+Kex = \.kpf$
 KiriKiri = (?:^|/)KAGParserEx\.dll$
 Lime_OR_OpenFL = (?:^|/)lime(?:-legacy)?\.[hn]dll$
 Love2D = (?:^|/)(?:lib)?love\.(?:dll|so|so\.0)$
diff --git a/tests/types/Engine.Kex.txt b/tests/types/Engine.Kex.txt
new file mode 100644
index 000000000..ac19209c5
--- /dev/null
+++ b/tests/types/Engine.Kex.txt
@@ -0,0 +1,5 @@
+rerelease/QuakeEX.kpf
+BloodEX.kpf
+sshock.kpf
+Doom64.kpf
+sub/dir/game.kpf
diff --git a/tests/types/_NonMatchingTests.txt b/tests/types/_NonMatchingTests.txt
index a38911e92..ec2eebfcc 100644
--- a/tests/types/_NonMatchingTests.txt
+++ b/tests/types/_NonMatchingTests.txt
@@ -534,6 +534,9 @@ OgreMain_dll
 OgreMain_x64_dll
 OgreMain_dlll
 VOgreMain.dll
+somefile.kpfwhoops
+somefilekpf
+somefile_kpf
 bink2w64.ddl
 notabink.dll
 binkw23.dll