diff --git a/engines/trecision/detection.cpp b/engines/trecision/detection.cpp
index 18108f7d236..ca053cb3544 100644
--- a/engines/trecision/detection.cpp
+++ b/engines/trecision/detection.cpp
@@ -86,6 +86,16 @@ static const ADGameDescription gameDescriptions[] = {
 		ADGF_NO_FLAGS,
 		GUIO0()
 	},
+	{
+		"nl",
+		0,
+		AD_ENTRY1s("data.nl", "7665db13ad2a1ceb576531be3e1efb30", 392950),
+		Common::EN_ANY,
+		Common::kPlatformWindows,
+		ADGF_DEMO,
+		GUIO0()
+	},
+
 	AD_TABLE_END_MARKER
 };
 
diff --git a/engines/trecision/metaengine.cpp b/engines/trecision/metaengine.cpp
index 434945feae7..eea9f109e64 100644
--- a/engines/trecision/metaengine.cpp
+++ b/engines/trecision/metaengine.cpp
@@ -36,7 +36,7 @@ class TrecisionMetaEngine : public AdvancedMetaEngine {
 };
 
 Common::Error TrecisionMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
-	*engine = new Trecision::TrecisionEngine(syst);
+	*engine = new Trecision::TrecisionEngine(syst, desc);
 	return Common::kNoError;
 }
 
diff --git a/engines/trecision/trecision.cpp b/engines/trecision/trecision.cpp
index 465bcabea14..6a5a16c23d9 100644
--- a/engines/trecision/trecision.cpp
+++ b/engines/trecision/trecision.cpp
@@ -57,7 +57,7 @@ namespace Trecision {
 
 TrecisionEngine *g_vm;
 
-TrecisionEngine::TrecisionEngine(OSystem *syst) : Engine(syst) {
+TrecisionEngine::TrecisionEngine(OSystem *syst, const ADGameDescription *desc) : Engine(syst), _gameDescription(desc) {
 	const Common::FSNode gameDataDir(ConfMan.get("path"));
 	SearchMan.addSubDirectoryMatching(gameDataDir, "AUTORUN");
 	SearchMan.addSubDirectoryMatching(gameDataDir, "DATA");
@@ -245,6 +245,10 @@ Common::Error TrecisionEngine::run() {
 	return Common::kNoError;
 }
 
+bool TrecisionEngine::isDemo() const {
+	return _gameDescription->flags & ADGF_DEMO;
+}
+
 void TrecisionEngine::eventLoop() {
 	Common::Event event;
 	while (g_system->getEventManager()->pollEvent(event)) {
@@ -419,12 +423,13 @@ void TrecisionEngine::openDataFiles() {
 	if (!_dataFile.open("nldata.cd0"))
 		error("openDataFiles() - Error opening nldata.cd0");
 
-	if (!Common::File::exists("nlanim.cd1") ||
-		!Common::File::exists("nlanim.cd2") ||
-		!Common::File::exists("nlanim.cd3")
-		)
-		error("openDataFiles() - nlanim.cd1 or nlanim.cd2 or nlanim.cd3 is missing");
-
+	if (!isDemo()) {
+		if (!Common::File::exists("nlanim.cd1") ||
+			!Common::File::exists("nlanim.cd2") ||
+			!Common::File::exists("nlanim.cd3"))
+			error("openDataFiles() - nlanim.cd1 or nlanim.cd2 or nlanim.cd3 is missing");
+	}
+	
 	_font = readData("nlfont.fnt");
 	int size;
 	_arrows = readData16("frecc.bm", size);
diff --git a/engines/trecision/trecision.h b/engines/trecision/trecision.h
index 0a807931bdb..f2417bdce1d 100644
--- a/engines/trecision/trecision.h
+++ b/engines/trecision/trecision.h
@@ -26,6 +26,7 @@
 #include "common/str-array.h"
 #include "common/keyboard.h"
 #include "common/str.h"
+#include "engines/advancedDetector.h"
 #include "engines/engine.h"
 #include "graphics/surface.h"
 
@@ -118,11 +119,12 @@ class TrecisionEngine : public Engine {
 	SCamera FCamera;
 
 public:
-	TrecisionEngine(OSystem *syst);
+	TrecisionEngine(OSystem *syst, const ADGameDescription *desc);
 	~TrecisionEngine() override;
 
 	// ScummVM
 	Common::Error run() override;
+	bool isDemo() const;
 	void eventLoop();
 	bool hasFeature(EngineFeature f) const override;
 	bool canLoadGameStateCurrently() override { return canPlayerInteract(); }
@@ -212,6 +214,8 @@ public:
 	bool isObjectVisible(uint16 objectId) const;
 	void setObjectAnim(uint16 objectId, uint16 animId);
 
+	const ADGameDescription *_gameDescription;
+
 	Graphics::Surface _thumbnail;
 
 	uint16 _curRoom;