Top Ten Popular Video Games That Were Total Ripoffs

This is probably the easiest to know what game this came from. Well, actually there's two valid answers for this:
The answers I'll take will be Candy Swipe and Bejeweled Blitz. Both of these games are about matching items in rows to remove them from the board.
Candy Swipe was copied in many ways by Candy Crush and the power up system of Candy Crush came from Bejeweled where you can match items together in ways to get power ups such as explosive pieces which obliterate everything adjacent to them for example. - Cazaam

No, when I thought the candy crush craze was over... Along came candy crush soda saga, they're making a new one NOO

Too famous ripoff and has too many levels BEJEWED CAME BEFORE

Ms. Pac man is a direct rip off of another Pac Man rip off... A group of kids hacked into a Pac Man arcade system and modified the game to their liking with a different map, modified sprites and called it Crazy Otto. This was before Ms. Pac Man was released. Is it a coincidence why Crazy Otto and Ms Pac Man have the same exact map?

aarond90 It's not exactly a rip off for that reason as it was made by the same company as the original Pac Man, it's a rip off for ripping off a hacked version of Pac Man with the same map. - Cazaam

It's the same thing as regular Pac-man.
Just with a different character. - aarond90

Ms pacwoman

A ripoff of what? It's a third person shooter. Are other games not allowed to be third person shooters? - peashooter

Let's just take Scrabble and move the bonus squares around and change some of the point values of the letters... Real original. - Cazaam

Play the multiplayer and you'll understand why it's here - htoutlaws2012

The whole series is a ripoff of Doom

Modern Spacefare - xandermartin98

Is a rip off of another game known as GuitarFreaks. released by Konami in 1999. The gameplay was exactly the same as Guitar Hero: Players pressed plastic buttons and strummed a large plastic flipper on a guitar-shaped controller in time with the game's music. Every so often, the player could even raise the fake guitar in the air to gain extra style points. A small meter showed how well a player was keeping up with the song; too many missed notes and it turned from green to red to "Game Over."

Sound familiar in any way? - Cazaam

tf2 copy

A blatant rip off of Crazy Taxi... There's no way you can deny. - Cazaam

This game took mechanics from a better first person shooter called Titanfall. - Cazaam

I don't care about this game but the reason it got so popular is because it was unique, could you please tell me what this is a ripoff of?

Please tell me why the heck is this on this list. Suee it is popular
but this is not a ripoff of any games.