Which Games Failed To Copy Another Games Success? (Sales and/or Gameplay)

Example, Lets say Dragon Quest Heroes/Hyrule Warriors when comparing to OP Pirate Warriors Success in Sales (of course they didnt)

or For Gameplay a Driving game that was suppose to play like [insert game] but didnt live up to expectations/etc!

Post!!!

Any Halo/Mario killer

Meme run copying Uncharted 3... they try to copy the gameplay, graphics and story but failed miserably...... DO NOT EVER COPY A FUCKING MASTERPIECE!

Playstation All Stars Battle Royal in both gameplay and Sales compared to SSB. Heck, I dont even think it has a music player to listen to all the songs

The hundreds of Pokemon copycats there are on the Apple store. In fact, most of the AppleStore is a knockoff of something.

Dante's Inferno. It was SUCH a blatant ripoff I almost feel like Sony could have sued lol. Luckily it got the lack of sales it deserved. I'm all for taking inspiration but the movements and combat were SO similar I could not condone that.

Dragon Age 2 failed to copy Dragon Age Origins.

Killzone failed to copy Halo.

I love Killzone, but it's just so far from being as good.

How much did PSASBR do anyway? Yeah, it wasnt very good. There was no Competitive scene either to keep it alive, but it makes sense giving the fighting system.

Playstation All Stars and Little Big Planet Karting
Both don't come close to Smash or Mario Kart