diff --git a/i18n-tools/LevelsI18N.cmake b/i18n-tools/LevelsI18N.cmake
index a6cc0bcc..4c85382e 100644
--- a/i18n-tools/LevelsI18N.cmake
+++ b/i18n-tools/LevelsI18N.cmake
@@ -44,7 +44,7 @@ function(generate_chaptertitles_i18n result_translated_chaptertitle_files source
 
         foreach(po_file ${po_files})
             get_filename_component(po_file_name ${po_file} NAME)
-            # get language code e.g. "de"
+            # get language code e.g. "de.po" -> "de"
             string(REPLACE ".po" "" language_code ${po_file_name})
             # generated file for single language
             set(generated_language_file ${output_chaptertitle_file}.${language_code})
@@ -80,13 +80,94 @@ function(generate_chaptertitles_i18n result_translated_chaptertitle_files source
     string(REGEX REPLACE "[/\\]" "_" target_suffix ${po_dir})
     add_custom_target(level_i18n-${target_suffix} ALL DEPENDS ${translation_signalfile} ${po_clean_signalfile})
 
+    # return the translated files
     set(${result_translated_chaptertitle_files} ${translated_chaptertitle_files} PARENT_SCOPE)
 endfunction()
 
 ##
-# Generate translated level file using po4a
+# Generate translated level and help files using po4a
 ##
-function(generate_scene_i18n translated_scene_file_path source_level_file)
-    # TODO finish level translation...
+function(generate_level_i18n result_translated_level_file result_translated_help_files source_level_file help_dir po_dir)
+    get_filename_component(abs_po_dir ${po_dir} ABSOLUTE)
+    # generated config file for po4a
+    set(po4a_cfg_file ${LEVELS_I18N_WORK_DIR}/${po_dir}/scene_po4a.cfg)
+    # generated dummy file for translation of "E", "D", "F", "P", etc. language letters
+    set(langchar_file ${LEVELS_I18N_WORK_DIR}/${po_dir}/scene_langchar.txt)
+
+    file(WRITE ${langchar_file} "E")
+
+    # get translations from po directory
+    file(WRITE ${po4a_cfg_file} "[po_directory] ${abs_po_dir}\n")
+    # add content of dummy language file to translation
+    file(APPEND ${po4a_cfg_file} "[type:text] ${langchar_file}")
+
+    get_filename_component(abs_source_level_file ${source_level_file} ABSOLUTE)
+    set(output_level_file ${LEVELS_I18N_WORK_DIR}/${source_level_file})
+
+    # translation rule for scene file
+    file(APPEND ${po4a_cfg_file} "\n[type:colobotlevel] ${abs_source_level_file}")
+
+    file(GLOB po_files ${po_dir}/*.po)
+    foreach(po_file ${po_files})
+        get_filename_component(po_file_name ${po_file} NAME)
+        # get language code e.g. "de.po" -> "de"
+        string(REPLACE ".po" "" language_code ${po_file_name})
+        # generated file for single language
+        set(generated_language_file ${output_level_file}.${language_code})
+        file(APPEND ${po4a_cfg_file} " \\\n    ${language_code}:${generated_language_file}")
+    endforeach()
+
+    # translation rules for help files
+    set(output_help_dir ${LEVELS_I18N_WORK_DIR}/${po_dir}/help)
+    set(translated_help_files "")
+
+    file(GLOB help_files ${help_dir}/*.txt)
+    list(SORT help_files)
+    foreach(help_file ${help_files})
+        get_filename_component(help_file_name ${help_file} NAME)
+
+        file(APPEND ${po4a_cfg_file} "\n[type:colobothelp] ${help_file}")
+        foreach(po_file ${po_files})
+            get_filename_component(po_file_name ${po_file} NAME)
+            # get language code e.g. "de.po" -> "de"
+            string(REPLACE ".po" "" language_code ${po_file_name})
+            # get language letter e.g. "de.po" -> "d"
+            string(REGEX REPLACE ".\\.po" "" language_char ${po_file_name})
+            string(TOUPPER ${language_char} language_char)
+            # generated file for single language
+            string(REPLACE ".E." ".${language_char}." generated_help_file_name ${help_file_name})
+            set(generated_help_file ${output_help_dir}/${generated_help_file_name})
+            file(APPEND ${po4a_cfg_file} " \\\n    ${language_code}:${generated_help_file}")
+
+            list(APPEND translated_help_files ${generated_help_file})
+        endforeach()
+    endforeach()
+
+    # dummy files to signal that scripts have finished running
+    set(translation_signalfile ${LEVELS_I18N_WORK_DIR}/${po_dir}/translations)
+    set(po_clean_signalfile ${LEVELS_I18N_WORK_DIR}/${po_dir}/po_clean)
+
+    # script to run po4a and consolidate the translations
+    add_custom_command(OUTPUT ${translation_signalfile}
+                       COMMAND ${DATA_SOURCE_DIR}/i18n-tools/scripts/create_translations.sh ${abs_source_level_file} ${output_level_file} ${po4a_cfg_file} ${translation_signalfile}
+                       DEPENDS ${po_files})
+
+    file(GLOB pot_file ${po_dir}/*.pot)
+    set(po_files ${po_files} ${pot_file})
+
+    # script to do some cleanups in updated *.po and *.pot files
+    string(REPLACE ";" ":" escaped_po_files "${po_files}")
+    add_custom_command(OUTPUT ${po_clean_signalfile}
+                       COMMAND ${DATA_SOURCE_DIR}/i18n-tools/scripts/clean_po_files.sh ${escaped_po_files} ${translation_signalfile} ${po_clean_signalfile}
+                       DEPENDS ${translation_signalfile}
+                      )
+
+    # generate some unique string for target name
+    string(REGEX REPLACE "[/\\]" "_" target_suffix ${po_dir})
+    add_custom_target(level_i18n-${target_suffix} ALL DEPENDS ${translation_signalfile} ${po_clean_signalfile})
+
+    # return the translated files
+    set(${result_translated_level_file} ${output_level_file} PARENT_SCOPE)
+    set(${result_translated_help_files} ${translated_help_files} PARENT_SCOPE)
 endfunction()
 
diff --git a/levels/CMakeLists.txt b/levels/CMakeLists.txt
index 8dbd665d..c28da7e7 100644
--- a/levels/CMakeLists.txt
+++ b/levels/CMakeLists.txt
@@ -44,17 +44,16 @@ endfunction()
 # Add level directory
 ##
 function(add_level level_dir)
-    if(PO4A)
-        generate_scene_i18n(translated_scene_path ${level_dir}/scene.txt)
+    if(PO4A AND EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${level_dir}/po/)
+        generate_level_i18n(translated_level_file translated_help_files ${level_dir}/scene.txt ${level_dir}/help ${level_dir}/po)
     else()
-        set(translated_scene_path ${level_dir}/scene.txt)
+        set(translated_level_file ${level_dir}/scene.txt)
     endif()
-    install(FILES ${translated_scene_path} DESTINATION ${LEVEL_INSTALL_DATA_DIR}/${level_dir})
+    install(FILES ${translated_level_file} DESTINATION ${LEVEL_INSTALL_DATA_DIR}/${level_dir})
 
-# TODO install help files
-#     if(EXISTS ${level_dir}/help)
-#         install(DIRECTORY ${level_dir}/help DESTINATION ${LEVEL_INSTALL_DATA_DIR}/${level_dir})
-#     endif()
+    file(GLOB original_help_files ${level_dir}/help/*.txt)
+    install(FILES ${original_help_files} DESTINATION ${LEVEL_INSTALL_DATA_DIR}/${level_dir}/help)
+    install(FILES ${translated_help_files} DESTINATION ${LEVEL_INSTALL_DATA_DIR}/${level_dir}/help)
 endfunction()