Language Learning Games

BBC Literacy Games

Butterfly Haiku

Crossword Puzzles Compiler
 
Discovery Brain Boosters

ESL-Classroom's Vocabulary Quizzes

FreeRice.com Vocabulary Game

FunBrain.com Games

Games and Activities for the ESL/EFL Classroom

Internet TESL Journal's English Vocabulary Quizzes Using Images 

Internet TESL Journal's English Vocabulary Quizzes Difficult

Long Island University's TOEFL Vocabulary Workshop on Prefixes 

ManyThing.org's Vocabulary Activities, Games, Puzzles, and More 

ManyThings.org's Comprehensive English Vocabulary Word Lists
 
ManyThings.org's Easy Vocabulary Quizzes with Pictures
 
Merriam-Webster Dictionary Word Games

Michigan Proficiency Exam's Prefix and Suffix Help

Oxford Dictionary Word Games
 
Starfall.com Games with Phonics
 
Teachers' Cafe Grammar Games 

University of Nottingham's Academic English with the Academic Word List

Wise Old Sayings Ultimate Guide to Word Games

WordPlays Word Games 

Word Playground

HOT CHOCOLATE, COOL QUOTES VOCABULARY GAMES

Basic English Vocabulary
Based on Odgen's Basic English Vocabulary 

Intermediate English Vocabulary
Based on Coxhead's Academic Word List  

Advanced English Vocabulary

Morphemes (Prefixes, Roots, Suffixes) 

Reporting Verbs / Reported Speech 

Transition Words