diff --git a/descriptions/Engine.3D_Landscapes.md b/descriptions/Engine.3D_Landscapes.md
new file mode 100644
index 000000000..589e5527e
--- /dev/null
+++ b/descriptions/Engine.3D_Landscapes.md
@@ -0,0 +1 @@
+3D Landscapes is an engine desined by Synetic GmbH for racing games.
diff --git a/rules.ini b/rules.ini
index e65448e65..ef8dcc500 100644
--- a/rules.ini
+++ b/rules.ini
@@ -33,6 +33,7 @@ WAD = \.wad$ ; idTech1
 [Engine]
 001GameCreator = (?:^|/)data\.1rc$
 3D_GameStudio = (?:^|/)acknex\.(?:dll|wdf)$
+3D_Landscape = \.SYN$
 4A_Engine = ^(?:oaremote_plugin|bchmark)\.dll$
 Adobe_AIR = (?:^|/)Adobe AIR(?:$|/)
 AdventureGameStudio[] = (?:^|/)AGSteam\.dll$
diff --git a/tests/types/Engine.3D_Landscapes.txt b/tests/types/Engine.3D_Landscapes.txt
new file mode 100644
index 000000000..09ea756d6
--- /dev/null
+++ b/tests/types/Engine.3D_Landscapes.txt
@@ -0,0 +1 @@
+.SYN