diff --git a/getChallenges.js b/getChallenges.js
index 8eaa26fc79..b150e2d36d 100644
--- a/getChallenges.js
+++ b/getChallenges.js
@@ -8,21 +8,21 @@ const hiddenFile = /(^(\.|\/\.))|(.md$)/g;
 
 function getFilesFor(dir) {
   let targetDir = path.join(__dirname, dir);
-  return fs.readdirSync(targetDir)
+  return fs
+    .readdirSync(targetDir)
     .filter(file => !hiddenFile.test(file))
     .map(function(file) {
       let superBlock;
       if (fs.statSync(path.join(targetDir, file)).isFile()) {
-        return {file: file};
+        return { file: file };
       }
       superBlock = file;
-      return getFilesFor(path.join(dir, superBlock))
-        .map(function(data) {
-          return {
-            file: path.join(superBlock, data.file),
-            superBlock: superBlock
-          };
-        });
+      return getFilesFor(path.join(dir, superBlock)).map(function(data) {
+        return {
+          file: path.join(superBlock, data.file),
+          superBlock: superBlock
+        };
+      });
     })
     .reduce(function(files, entry) {
       return files.concat(entry);
@@ -33,7 +33,7 @@ function superblockInfo(filePath) {
   let parts = (filePath || '').split('-');
   let order = parseInt(parts[0], 10);
   if (isNaN(order)) {
-    return {order: 0, name: filePath};
+    return { order: 0, name: filePath };
   } else {
     return {
       order: order,
@@ -46,31 +46,26 @@ module.exports = function getChallenges(challengesDir) {
   if (!challengesDir) {
     challengesDir = 'challenges';
   }
-  return getFilesFor(challengesDir)
-    .map(function(data) {
-      const challengeSpec = require('./' + challengesDir + '/' + data.file);
-      let superInfo = superblockInfo(data.superBlock);
-      challengeSpec.fileName = data.file;
-      challengeSpec.superBlock = superInfo.name;
-      challengeSpec.superOrder = superInfo.order;
-      challengeSpec.challenges = challengeSpec.challenges
-        .map(challenge => omit(
-          challenge,
-          [
-            'betaSolutions',
-            'betaTests',
-            'hints',
-            'MDNlinks',
-            'null',
-            'rawSolutions',
-            'react',
-            'reactRedux',
-            'redux',
-            'releasedOn',
-            'translations',
-            'type'
-          ]
-        ));
-      return challengeSpec;
-    });
+  return getFilesFor(challengesDir).map(function(data) {
+    const challengeSpec = require('./' + challengesDir + '/' + data.file);
+    let superInfo = superblockInfo(data.superBlock);
+    challengeSpec.fileName = data.file;
+    challengeSpec.superBlock = superInfo.name;
+    challengeSpec.superOrder = superInfo.order;
+    challengeSpec.challenges = challengeSpec.challenges.map(challenge =>
+      omit(challenge, [
+        'betaSolutions',
+        'betaTests',
+        'hints',
+        'MDNlinks',
+        'null',
+        'rawSolutions',
+        'react',
+        'reactRedux',
+        'redux',
+        'type'
+      ])
+    );
+    return challengeSpec;
+  });
 };
diff --git a/schema/challengeSchema.js b/schema/challengeSchema.js
index 7c86166873..de96a61575 100644
--- a/schema/challengeSchema.js
+++ b/schema/challengeSchema.js
@@ -4,12 +4,15 @@ Joi.objectId = require('joi-objectid')(Joi);
 const schema = Joi.object().keys({
   block: Joi.string(),
   blockId: Joi.objectId(),
-  challengeType: Joi.number().min(0).max(9).required(),
+  challengeType: Joi.number()
+    .min(0)
+    .max(9)
+    .required(),
   checksum: Joi.number(),
   dashedName: Joi.string(),
-  description: Joi.array().items(
-    Joi.string().allow('')
-  ).required(),
+  description: Joi.array()
+    .items(Joi.string().allow(''))
+    .required(),
   fileName: Joi.string(),
   files: Joi.object().pattern(
     /(jsx?|html|css|sass)$/,
@@ -17,14 +20,8 @@ const schema = Joi.object().keys({
       key: Joi.string(),
       ext: Joi.string(),
       name: Joi.string(),
-      head: [
-        Joi.array().items(Joi.string().allow('')),
-        Joi.string().allow('')
-      ],
-      tail: [
-        Joi.array().items(Joi.string().allow('')),
-        Joi.string().allow('')
-      ],
+      head: [Joi.array().items(Joi.string().allow('')), Joi.string().allow('')],
+      tail: [Joi.array().items(Joi.string().allow('')), Joi.string().allow('')],
       contents: [
         Joi.array().items(Joi.string().allow('')),
         Joi.string().allow('')
@@ -49,9 +46,8 @@ const schema = Joi.object().keys({
       crossDomain: Joi.bool()
     })
   ),
-  solutions: Joi.array().items(
-    Joi.string().optional()
-  ),
+  releasedOn: Joi.string().allow(''),
+  solutions: Joi.array().items(Joi.string().optional()),
   superBlock: Joi.string(),
   superOrder: Joi.number(),
   suborder: Joi.number(),
@@ -59,7 +55,9 @@ const schema = Joi.object().keys({
     // public challenges
     Joi.object().keys({
       text: Joi.string().required(),
-      testString: Joi.string().allow('').required()
+      testString: Joi.string()
+        .allow('')
+        .required()
     }),
     // our tests used in certification verification
     Joi.object().keys({
@@ -69,7 +67,14 @@ const schema = Joi.object().keys({
   ),
   template: Joi.string(),
   time: Joi.string().allow(''),
-  title: Joi.string().required()
+  title: Joi.string().required(),
+  translations: Joi.object().pattern(
+    /\w+(-\w+)*/,
+    Joi.object().keys({
+      title: Joi.string(),
+      description: Joi.array().items(Joi.string().allow(''))
+    })
+  )
 });
 
 exports.validateChallenge = function validateChallenge(challenge) {
diff --git a/unpackedChallenge.js b/unpackedChallenge.js
index 6c273adf4c..ffa59af928 100644
--- a/unpackedChallenge.js
+++ b/unpackedChallenge.js
@@ -34,9 +34,6 @@ class ChallengeFile {
     // todo: make sure it works with encodings
     let data = fs.readFileSync(this.filePath());
     let lines = data.toString().split(/(?:\r\n|\r|\n)/g);
-    let chunks = {};
-    let readingChunk = null;
-    let currentParagraph = [];
 
     function removeLeadingEmptyLines(array) {
       let emptyString = /^\s*$/;
@@ -45,69 +42,159 @@ class ChallengeFile {
       }
     }
 
-    lines.forEach(line => {
-      let chunkEnd = /(<!|\/\*)--end--/;
-      let chunkStart = /(<!|\/\*)--(\w+)--/;
+    let chunkEnd = /(<!|\/\*)--end--/;
+    let index = 0;
 
-      line = line.toString();
+    function endOfFile() {
+      return index === lines.length;
+    }
+
+    function nextLine() {
+      if (endOfFile()) {
+        return null;
+      }
+      return lines[index++].toString();
+    }
+
+    function readDescription() {
+      let description = [];
+      let currentParagraph = [];
 
       function pushParagraph() {
         removeLeadingEmptyLines(currentParagraph);
-        chunks[ readingChunk ].push(currentParagraph.join('\n'));
+        description.push(currentParagraph.join('\n'));
         currentParagraph = [];
       }
 
-      if (chunkEnd.test(line)) {
-        if (!readingChunk) {
-          throw 'Encountered --end-- without being in a chunk';
-        }
-        if (currentParagraph.length) {
+      while (!endOfFile()) {
+        let line = nextLine();
+        if (chunkEnd.test(line)) {
+          pushParagraph();
+          return description;
+        } else if (line === paragraphBreak) {
           pushParagraph();
         } else {
-          removeLeadingEmptyLines(chunks[readingChunk]);
-        }
-        readingChunk = null;
-      } else if (readingChunk === 'description' && line === paragraphBreak) {
-        pushParagraph();
-      } else if (chunkStart.test(line)) {
-        let chunkName = line.match(chunkStart)[ 2 ];
-        if (readingChunk) {
-          throw `Encountered chunk ${chunkName} start `
-          + `while already reading ${readingChunk}:
-           ${line}`;
-        }
-        readingChunk = chunkName;
-      } else if (readingChunk) {
-        if (!chunks[ readingChunk ]) {
-          chunks[ readingChunk ] = [];
-        }
-        if (line.startsWith(jsonLinePrefix)) {
-          line = JSON.parse(line.slice(jsonLinePrefix.length));
-          chunks[ readingChunk ].push(line);
-        } else if (readingChunk === 'description') {
           currentParagraph.push(line);
-        } else {
-          chunks[ readingChunk ].push(line);
         }
       }
-    });
+      throw `Unexpected end of the file while reading a description.
+        ${this.filePath()}`;
+    }
+
+    function readTranslations() {
+      let translations = {};
+      let langChunk = /<!--(\w+(-\w+)*)-->/;
+
+      while (!endOfFile()) {
+        let line = nextLine();
+        if (chunkEnd.test(line)) {
+          return translations;
+        } else if (langChunk.test(line)) {
+          let langCode = line.match(langChunk)[1];
+          translations[langCode] = readProperties();
+          line = nextLine();
+          if (!chunkEnd.test(line)) {
+            throw `Expected --end--:
+              ${line}`;
+          }
+        }
+      }
+      throw `Unexpected end of the file while reading translations.
+        ${this.filePath()}`;
+    }
+
+    function readFiles() {
+      let files = {};
+      let fileChunk = /<!--(\w+)\.(\w+)-->/;
+      while (!endOfFile()) {
+        let line = nextLine();
+        if (chunkEnd.test(line)) {
+          return files;
+        } else if (fileChunk.test(line)) {
+          let name = line.match(fileChunk)[1];
+          let ext = line.match(fileChunk)[2];
+          let key = name + ext;
+          files[key] = {};
+          files[key].key = key;
+          files[key].ext = ext;
+          files[key].name = name;
+          Object.assign(files[key], readProperties());
+          line = nextLine();
+          if (!chunkEnd.test(line)) {
+            throw `Expected --end--:
+              ${line}`;
+          }
+        }
+      }
+      throw `Unexpected end of the file while reading files.
+        ${this.filePath()}`;
+    }
+
+    function readProperty() {
+      let property = [];
+      while (!endOfFile()) {
+        let line = nextLine();
+        if (chunkEnd.test(line)) {
+          removeLeadingEmptyLines(property);
+          return property;
+        } else if (line.startsWith(jsonLinePrefix)) {
+          line = JSON.parse(line.slice(jsonLinePrefix.length));
+          property.push(line);
+        } else {
+          property.push(line);
+        }
+      }
+      throw `Unexpected end of the file while reading a property.
+        ${this.filePath()}`;
+    }
+
+    function readProperties() {
+      let properties = {};
+      let chunkStart = /(<!|\/\*)--(\w+)--/;
+
+      while (!endOfFile()) {
+        let line = nextLine();
+        if (chunkEnd.test(line)) {
+          index--; // must to do step back
+          return properties;
+        } else if (chunkStart.test(line)) {
+          let chunkName = line.match(chunkStart)[2];
+          if (chunkName === 'description') {
+            properties[chunkName] = readDescription();
+          } else if (chunkName === 'translations') {
+            properties[chunkName] = readTranslations();
+          } else if (chunkName === 'files') {
+            properties[chunkName] = readFiles();
+          } else {
+            properties[chunkName] = readProperty();
+            if (chunkName === 'releasedOn' || chunkName === 'title') {
+              properties[chunkName] = properties[chunkName].join('\n');
+            }
+          }
+        }
+      }
+      return properties;
+    }
+
+    let chunks = readProperties();
+
+    if (!endOfFile()) {
+      throw `Unexpected content of file: ${this.filePath()}`;
+    }
 
     // hack to deal with solutions field being an array of a single string
     // instead of an array of lines like some other fields
     if (chunks.solutions) {
-      chunks.solutions = [ chunks.solutions.join('\n') ];
+      chunks.solutions = [chunks.solutions.join('\n')];
+      removeLeadingEmptyLines(chunks.solutions);
     }
 
-    Object.keys(chunks).forEach(key => {
-      removeLeadingEmptyLines(chunks[key]);
-    });
-
     // console.log(JSON.stringify(chunks, null, 2));
     return chunks;
   }
 }
 
-export {ChallengeFile};
+export { ChallengeFile };
 
 class UnpackedChallenge {
   constructor(targetDir, challengeJson, index) {
@@ -130,8 +217,7 @@ class UnpackedChallenge {
   }
 
   unpack() {
-    this.challengeFile()
-      .write(this.unpackedHTML());
+    this.challengeFile().write(this.unpackedHTML());
   }
 
   challengeFile() {
@@ -140,14 +226,14 @@ class UnpackedChallenge {
 
   baseName() {
     // eslint-disable-next-line no-nested-ternary
-    let prefix = ((this.index < 10) ? '00' : (this.index < 100) ? '0' : '')
-      + this.index;
+    let prefix =
+      (this.index < 10 ? '00' : this.index < 100 ? '0' : '') + this.index;
     return `${prefix}-${dasherize(this.challenge.title)}-${this.challenge.id}`;
   }
 
-  expandedDescription() {
+  expandedDescription(description) {
     let out = [];
-    this.challenge.description.forEach(part => {
+    description.forEach(part => {
       if (_.isString(part)) {
         out.push(part.toString());
         out.push(paragraphBreak);
@@ -167,7 +253,7 @@ class UnpackedChallenge {
       }
     });
 
-    if (out[ out.length - 1 ] === paragraphBreak) {
+    if (out[out.length - 1] === paragraphBreak) {
       out.pop();
     }
     return out;
@@ -208,42 +294,138 @@ class UnpackedChallenge {
        and run <code>npm run repack</code>
        to incorporate your changes into the challenge database.</p>`);
 
+    text.push('<h2>Title</h2>');
+    text.push('<!--title-->');
+    text.push(this.challenge.title);
+    text.push('<!--end-->');
+
     text.push('');
     text.push('<h2>Description</h2>');
     text.push('<div class="unpacked description">');
     text.push('<!--description-->');
     if (this.challenge.description.length) {
-      text.push(this.expandedDescription().join('\n'));
+      text.push(
+        this.expandedDescription(this.challenge.description).join('\n')
+      );
+    }
+    text.push('<!--end-->');
+    text.push('</div>');
+    text.push('');
+    text.push('<h2>Translations</h2>');
+    text.push(`
+      <p>Format of translation unit:</p>
+        <p>
+          <code>
+            &lt!--<em>language-code</em>--&gt<br>
+            &lt!--<em>title</em>--&gt<br>
+            <em>Title</em><br>
+            &lt!--<em>end</em>--&gt<br>
+            &lt!--<em>description</em>--&gt<br>
+            <em>Description</em><br>
+            &lt!--<em>end</em>--&gt<br>
+            &lt!--<em>end</em>--&gt<br>
+          </code>
+        </p>`);
+    text.push('<div class="unpacked">');
+    text.push('<!--translations-->');
+    if (this.challenge.hasOwnProperty('translations')) {
+      const translations = this.challenge.translations;
+      const keys = Object.keys(translations);
+      if (keys) {
+        keys.forEach(lang => {
+          text.push(`<h2>${lang}</h2>`);
+          text.push(`<!--${lang}-->`);
+          const translation = translations[lang];
+          if (translation.title) {
+            text.push('<h3>Title</h3>');
+            text.push('<!--title-->');
+            text.push(translation.title);
+            text.push('<!--end-->');
+          }
+          if (translation.description && translation.description.length) {
+            text.push('<h3>Description</h3>');
+            text.push('<!--description-->');
+            text.push(
+              this.expandedDescription(translation.description).join('\n')
+            );
+            text.push('<!--end-->');
+          }
+          text.push('<!--end-->');
+        });
+      }
     }
     text.push('<!--end-->');
     text.push('</div>');
 
     text.push('');
-    text.push('<h2>Seed</h2>');
-    text.push('<!--seed--><pre class="unpacked">');
-    if (this.challenge.seed) {
-      text.push(text, this.challenge.seed.join('\n'));
-    }
+    text.push('<h2>Released On</h2>');
+    text.push('<div class="unpacked">');
+    text.push('<!--releasedOn-->');
+    text.push(this.challenge.releasedOn);
     text.push('<!--end-->');
-    text.push('</pre>');
-
-    // Q: What is the difference between 'seed' and 'challengeSeed' ?
-    text.push('');
-    text.push('<h2>Challenge Seed</h2>');
-    text.push('<!--challengeSeed--><pre class="unpacked">');
-    if (this.challenge.challengeSeed) {
-      text.push(text, this.challenge.challengeSeed.join('\n'));
-    }
-    text.push('<!--end-->');
-    text.push('</pre>');
+    text.push('</div>');
 
     text.push('');
-    text.push('<h2>Head</h2>');
-    text.push('<!--head--><script class="unpacked head">');
-    if (this.challenge.head) {
-      text.push(text, this.challenge.head.join('\n'));
+    text.push('<h2>Files</h2>');
+    text.push(`
+      <p>Format of file:</p>
+        <p>
+          <code>
+            &lt!--<em>name.ext</em>--&gt<br>
+            &lt!--<em>contents</em>--&gt<br>
+            <em>Contents</em><br>
+            &lt!--<em>end</em>--&gt<br>
+            &lt!--<em>head</em>--&gt<br>
+            <em>Head</em><br>
+            &lt!--<em>end</em>--&gt<br>
+            &lt!--<em>tail</em>--&gt<br>
+            <em>Tail</em><br>
+            &lt!--<em>end</em>--&gt<br>
+            &lt!--<em>end</em>--&gt<br>
+          </code>
+        </p>`);
+    text.push('<div class="unpacked">');
+    text.push('<!--files-->');
+    if (this.challenge.files) {
+      Object.keys(this.challenge.files).forEach(key => {
+        let file = this.challenge.files[key];
+        let { contents, head, tail } = file;
+        text.push(`<h3>${file.name + '.' + file.ext}</h3>`);
+        text.push(`<!--${file.name + '.' + file.ext}-->`);
+        text.push('<h4>Contents</h4>');
+        text.push('<pre>');
+        text.push(_.escape(contents.join('\n')));
+        text.push('</pre>');
+        text.push('<pre style="display: none;">');
+        text.push('<!--contents-->');
+        text.push(contents.join('\n'));
+        text.push('<!--end-->');
+        text.push('</pre>');
+
+        text.push('<h4>Head</h4>');
+        text.push('<pre>');
+        text.push(_.escape(head.join('\n')));
+        text.push('</pre>');
+        text.push('<pre style="display: none;">');
+        text.push('<!--head-->');
+        text.push(head.join('\n'));
+        text.push('<!--end-->');
+        text.push('</pre>');
+
+        text.push('<h4>Tail</h4>');
+        text.push('<pre>');
+        text.push(_.escape(tail.join('\n')));
+        text.push('</pre>');
+        text.push('<pre style="display: none;">');
+        text.push('<!--tail-->');
+        text.push(tail.join('\n'));
+        text.push('<!--end-->');
+        text.push('</pre>');
+        text.push('<!--end-->');
+      });
     }
-    text.push('</script><!--end-->');
+    text.push('<!--end-->');
+    text.push('</div>');
 
     text.push('');
     text.push('<h2>Solution</h2>');
@@ -253,29 +435,24 @@ class UnpackedChallenge {
     // Note: none of the challenges have more than one solution
     // todo: should we deal with multiple solutions or not?
     if (this.challenge.solutions && this.challenge.solutions.length > 0) {
-      let solution = this.challenge.solutions[ 0 ];
+      let solution = this.challenge.solutions[0];
       text.push(solution);
     }
     text.push('</script><!--end-->');
 
-    text.push('');
-    text.push('<h2>Tail</h2>');
-    text.push('<!--tail--><script class="unpacked tail">');
-    if (this.challenge.tail) {
-      text.push(text, this.challenge.tail.join('\n'));
-    }
-    text.push('</script><!--end-->');
-
     text.push('');
     text.push('<h2>Tests</h2>');
     text.push('<script class="unpacked tests">');
-    text.push(`test(\'${this.challenge.title} challenge tests\', ` +
-      'function(t) {');
+    text.push(
+      `test(\'${this.challenge.title} challenge tests\', ` + 'function(t) {'
+    );
     text.push('let assert = addAssertsToTapTest(t);');
-    text.push('let code = document.getElementById(\'solution\').innerText;');
-    text.push('t.plan(' +
-      (this.challenge.tests ? this.challenge.tests.length : 0) +
-      ');');
+    text.push("let code = document.getElementById('solution').innerText;");
+    text.push(
+      't.plan(' +
+        (this.challenge.tests ? this.challenge.tests.length : 0) +
+        ');'
+    );
     text.push('/*--tests--*/');
     text.push(this.expandedTests(this.challenge.tests).join('\n'));
     text.push('/*--end--*/');
@@ -289,5 +466,4 @@ class UnpackedChallenge {
   }
 }
 
-export {UnpackedChallenge};
-
+export { UnpackedChallenge };