CrossworDS Codes -

Hard difficulty:
Complete 100 puzzles under the Medium difficulty setting to unlock the Hard setting.

Crossword pages:
Complete the indicated task to unlock the corresponding pages.

Easy pages 5 through 7: Complete 20 Easy crosswords. 
Easy pages 8 through 10: Complete 100 Easy crosswords. 
Medium pages 5 through 9: Complete 20 Medium crosswords. 
Medium pages 10 through 15: Complete 150 Medium crosswords. 
Hard pages 1 through 4: Complete 100 Medium crosswords. 
Hard pages 5 through 10: Complete 20 Hard crosswords. 

Medals:
Complete the indicated task to unlock the corresponding medal.

Anagram Expert - Long: Complete 200 long anagrams. 
Anagram Expert - Medium: Complete 200 Medium Anagrams. 
Anagram Expert - Short: Complete 200 Short Anagrams. 
Anagram Master - Short: Complete 300 Short Anagrams. 
Anagram Novice - Long: Complete 100 Long Anagrams. 
Anagram Novice - Medium: Complete 100 Medium Anagrams. 
Anagram Novice - Short: Complete 100 Short Anagrams. 
Crossword Expert - Easy: Complete all 200 Easy Crosswords without hints. 
Wordsearch Expert - Bonus: Complete all 40 Bonus Wordsearch puzzles. 
Wordsearch Expert - Large: Complete all 100 Large Wordsearch puzzles. 
Wordsearch Expert - Small: Complete all 100 Small Wordsearch puzzles.