diff --git a/js/decoder.js b/js/decoder.js
index 4d6f9c2..6d15073 100644
--- a/js/decoder.js
+++ b/js/decoder.js
@@ -620,3 +620,8 @@ function getModifierString(modifiers) {
 
     return key;
 }
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { decodeDragonCode };
+}
diff --git a/js/parser.js b/js/parser.js
index 313a389..5483825 100644
--- a/js/parser.js
+++ b/js/parser.js
@@ -736,3 +736,8 @@ function parseTechnology(token) {
 
     return result;
 }
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { parseDragonCode };
+}
diff --git a/js/species-data.js b/js/species-data.js
index 9bb35b7..470690b 100644
--- a/js/species-data.js
+++ b/js/species-data.js
@@ -247,3 +247,8 @@ function resolveSpeciesCode(code) {
     // Return the accumulated path or the name if we have it
     return path.length > 0 ? path[path.length - 1] : null;
 }
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { SPECIES_DATA, resolveSpeciesCode };
+}
diff --git a/js/tags-data.js b/js/tags-data.js
index b85ed53..f805da8 100644
--- a/js/tags-data.js
+++ b/js/tags-data.js
@@ -406,3 +406,8 @@ const TAG_DESCRIPTIONS = {
         '---!': "Cold fury - they're going to hunt you, and find you, and..."
     }
 };
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { TAG_DESCRIPTIONS };
+}
diff --git a/tests/test-data.js b/tests/test-data.js
index dc25adf..ef3c6da 100644
--- a/tests/test-data.js
+++ b/tests/test-data.js
@@ -330,3 +330,8 @@ const INTEGRATION_TESTS = [
         }
     }
 ];
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { TEST_CASES, INTEGRATION_TESTS };
+}
diff --git a/tests/test-runner-node.js b/tests/test-runner-node.js
index b02895e..1fdf2c3 100644
--- a/tests/test-runner-node.js
+++ b/tests/test-runner-node.js
@@ -3,39 +3,25 @@
 // Node.js Test Runner for Dragon Code V2.6
 // Loads all dependencies and runs tests in Node environment
 
-const fs = require('fs');
 const path = require('path');
-
-// Simulate browser environment
-global.window = {};
+const fs = require('fs');
 
 // Load dependencies
-function loadScript(filename) {
-    const filepath = path.join(__dirname, '..', filename);
-    const content = fs.readFileSync(filepath, 'utf8');
-    eval(content);
-}
+const { SPECIES_DATA, resolveSpeciesCode } = require('../js/species-data.js');
+const { TAG_DESCRIPTIONS } = require('../js/tags-data.js');
+const { parseDragonCode } = require('../js/parser.js');
+const { decodeDragonCode } = require('../js/decoder.js');
+const { TEST_CASES, INTEGRATION_TESTS } = require('./test-data.js');
+const { TestRunner } = require('./test-runner.js');
 
-// Load all JS files
-try {
-    loadScript('js/species-data.js');
-    loadScript('js/tags-data.js');
-    loadScript('js/parser.js');
-    loadScript('js/decoder.js');
-
-    // Load test files
-    const testDataPath = path.join(__dirname, 'test-data.js');
-    const testData = fs.readFileSync(testDataPath, 'utf8');
-    eval(testData);
-
-    const testRunnerPath = path.join(__dirname, 'test-runner.js');
-    const testRunner = fs.readFileSync(testRunnerPath, 'utf8');
-    eval(testRunner);
-
-} catch (error) {
-    console.error('Error loading scripts:', error.message);
-    process.exit(1);
-}
+// Make globally accessible for test runner compatibility
+global.SPECIES_DATA = SPECIES_DATA;
+global.resolveSpeciesCode = resolveSpeciesCode;
+global.TAG_DESCRIPTIONS = TAG_DESCRIPTIONS;
+global.parseDragonCode = parseDragonCode;
+global.decodeDragonCode = decodeDragonCode;
+global.TEST_CASES = TEST_CASES;
+global.INTEGRATION_TESTS = INTEGRATION_TESTS;
 
 // Run tests
 console.log('='.repeat(80));
diff --git a/tests/test-runner.js b/tests/test-runner.js
index d416fa2..9e852ee 100644
--- a/tests/test-runner.js
+++ b/tests/test-runner.js
@@ -282,3 +282,8 @@ class TestRunner {
 if (typeof window !== 'undefined') {
     window.TestRunner = TestRunner;
 }
+
+// Export for Node.js (CommonJS)
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = { TestRunner };
+}