Puzzle games in 'Memory' category:

Ocean Catch Match - Your uncle has collected some sea creatures and other items from the ocean, but he needs your help to sort them all.

Ocean Catch Match

Kistibi - Use your skills in this fun memory game! Find and match identical pairs.

Kistibi

Touch The Bubbles 2 - Use your musical memory skills to play this game.

Touch The Bubbles 2

Smiley Memory - This game contains  4 modes. Easy with 4 pairs. Normal with 12 pairs. Hard with 18 pairs. And Very Hard with 24 pairs.
You have to memorize smileys and than select pairs of the same smiles.  Be patient - you time is limited.

Smiley Memory

Valentine Hearts Pair Match - Find and match pairs of Valentine hearts.
Four game modes inside. Try it all.
Your memory and attention will be helpful.

Valentine Hearts Pair Match

Christmas Memory 2 - Train your brain and remember the positions of santa, the tree, the balls and the bells, and many more christmas items! Try to find the matching pairs, but beware, they move around!

Christmas Memory 2

TOTWO - TOTWO is a memory puzzle. Click on the cards to see what is behind them, and try to match all the pairs before the time runs out! 
Have fun!

TOTWO

King of Cards - Nijumi - Find two identical cards.

Info: Win against the computer, and play again - then you get a new enemy!

King of Cards – Nijumi

Match Cuties - Welcome to the cuddliest collection of matching Memory cards ever!

Match Cuties

Memogrow - Addictive puzzle memory game where you have to remember cells with gemstones. Use you memory skills to get more scores.

Memogrow

Where's My Pumpkin? Blitz - It's Halloween, and all your spooky and funny carved pumpkins are hidden under magical hats! Find all the pairs of matching pumpkins before time runs out, but beware the magical hats which keep swapping around! Score big bonuses by matching 3 in a row, and being fast.

Where’s My Pumpkin? Blitz

Memorylance - Train your memory by remembering the marked cells. Use your memory skills to get more scores in this online game. 
The game improves your spatial memory, visual memory, memory location of objects.

Memorylance

Christmas Memory Game - A Christmas themed memory matching game. fun for the whole family, kid safe!

Christmas Memory Game

Beauty Memory - Memory game for girls. Win Gifts. The object is to obtain matched pairs of cards

Beauty Memory

Skillman - Test yourself and see if you can become Skillman's new crime fighting sidekick.

Skillman

Where's My Pumpkin? - It's Halloween, and all your spooky and funny carved pumpkins are hidden under magical hats! Find all the pairs of matching pumpkins before time runs out, but beware the magical hats which keep swapping around! Score big bonuses by matching 3 in a row, and being fast.

Where’s My Pumpkin?

Memory Wars - The war between your memory and others!

Memory Wars

MindShuffle - MindShuffle is a memory game with added functionalities. 

Instead of the same cardsfield all the time will the cards shuffle 
when the player has three wrong combinations.

MindShuffle

Brain Memory: Nature - Beat all the modes in this nice match card game. You need to start clearing the

Brain Memory: Nature

Puzzbox - I am PuzzBox.

Copy my numbers.

Can you copy all of them?

Use your number keys.

Puzzbox

Bricks Puzzle - This is a fun bricks puzzle game. You can practice your memory in this puzzle. Click to find the identical bricks and remove them. There are 5 levels. Remove all the bricks before it piles to the top. Enjoy!

Bricks Puzzle

Neon Boxes - Do yo have a good memory? Copy arrangements to complete the game.

Neon Boxes

Animal Memory Game - A simple, classic matching game using friendly animals. Improve your memory skills. For kids and children of all ages and grades.

Animal Memory Game

Treasures - Board the pirate ship at your own risk!
And be careful, because the pirates will test you to the limit in this memory game!

Treasures

Safari Matching Game - Turn the cards to find matching pairs of safari animals.

Safari Matching Game

Simon Nature - A nature spin off of the classic game

Simon Nature

zodiac memory - recreate the zodiac that was requested

zodiac memory

Pirates Mind - Pirate's mind is based on a simple idea. Turn over coins in an attempt to match as many as possible. The more you turn over at a time, the bigger your score. Coins don't have to be next to each other to match. A special Crab Coin give you a quick peek of the 
playfield. When you use this coin, be prepared to memorize coin positions so you can match larger groups, giving you insane 

scoring possibilities. This game is based on a 3 minute play session. Once a player understands the  multiplier effect on their 

score,  advanced gameplay strategies are formulated. Competing against other players for high score status is a driving factor of 

this game

Pirates Mind

Dragon Ball Z Memory Game - Find matching pair of cards by clicking on them. The cards have the principal characters of dragon ball z anime: Goku, Vegeta, Bulma, Krillin, Piccolo, Gohan, Yamcha, Babidi, Tien Shinhan, Android #18, Frieza (Freezer), Cell, Majin Buu (Boo) and more.

Dragon Ball Z Memory Game

Matching Game - matching game

Matching Game

Twin Image Memory - Play this game, for test your memory skill.

Twin Image Memory

Magic Totems - Can you memorize the sequence of magic totems?

Magic Totems

Zyrx - Robotube Game's award-winning and original mind-boggling memory test! (And now it's available on the iPhone!)

To play, match the pattern of dots in the blue box by clicking the large dots in the orange grid. Sounds easy, doesn't it? It would be, if you didn't have only a couple seconds to memorize the pattern! Solve 20 puzzles in a row and enter Round 2 where you'll need to double-click for Pink dots and single-touch for White dots...and it only gets harder from there.

Zyrx

World On Fire - The world is invaded by fire creatures, and the only one able to stop them is you! Collect elemental powers by matching the tokens. Use your powers to defeat your enemies. 
*[Gundam and Hyoga suit is available to buy in game]

World On Fire

Hardcore memory - A plain memory game

Hardcore memory