Due to his father's secret about his origin, Donatello's life seems to take an unexpected turn as he finds himself being targeted by the Shredder himself.

What if Splinter found April as a little girl running from the Kraang? What if her new family did everything in their power to help hone her strange new powers? What if April could be responsible for the destruction of all life as we know it? It all happens Once Upon a December Night. I don't own any of the TMNT characters. I do deep research so it's as accurate as it can be.

A haughty look settled on Karai's face. "Because, Donatello, I have figured out that you are the key to their success, and without you, your family will fail." Karai has figured out the turtles' weakness and has decided to take care of it. But Donatello will not let himself be taken down so easily. Whumptober 2023, Day 5

Even though the Mind Probe didn't finish its job, it still started it. Even with a mind as strong as Donatello's that has to break through eventually. Day 4 of Whumptober 2023

Part of the Neozoic Tales, the Turtles help the Fellowship Crew with their plan to bring down the Wrangler Planet of Viola Strierra and liberate all the Humanimals enslaved there, but certain Humanimals having their hearts been hardened don't want reconciliation with humans but revenge

As Leonardo stares down at Earth from the Moon, he can't help but notice how silent it is. Day 3 of Whumptober 2023

The days after Mike lost his arm were hard ones for all involved. But perhaps Mike learned the hardest lesson of all—his brothers didn't care about him anymore. A SAINW story. Day 2 of Whumptober 2023

Sequel to Promise. Raphael and Karai become embroiled in an ancient feud when Shredder brings the full wrath of the Foot Clan to Hamato Yoshi in New York. The pair must wade through years of deception and mounting pressure between the two ninja clans, the mafia and the Kraang, making them question their loyalties and the fine lines between friend, foe and family.

Leonardo needs to jump from the blimp before it falls to the ground. But it's hard to do that when everything is moving around you. Day 1 of Whumptober 2023

Splinter tries to tell a story. (Birthday gift for a friend)

"I'm very naked and you, you're VERY alarming." Nothing is ever normal in a world with mutant turtle men. Especially not relationships. A series of one-shots with an aspiring artist and a very angry turtle. 2k14 based, but whatever.

Now that they'd defeated Superfly it should all be easy sailing, right? Well, with a new high school new siblings and new friends life is sure going to be interesting for the turtles. AKA A Plot/B Plot

Luego de la muerte de su padre y al descubrir lo mucho que esto afectó al mayor, Mikey decide obsequiarle a Leonardo un conejo blanco en un intento por subirle el ánimo. El plan resulta un éxito hasta que un día y por un descuido, la pequeña mascota cae en uno de los contenedores de mutágeno cambiando la situación de la familia y de Leo para siempre.

AU. Siempre los había querido, eran su familia, pero, después de haberse enterado de la verdad, los odiaba con toda su alma. Ahora tenían una oportunidad de corregir el pasado y no iban a desaprovecharla. ACTUALIZADO 18/Septiembre/2023

Leo feels disliked by his family on his birthday so he goes for a walk in New York, but all takes an unexpected turn when he meets Karai. What will happen when he meets the Shredder when he just turned 14? What about this strange scientist that wants to send him to a dimension full of Yokai? Will he survive? Will his family find him? Will his boyfriend? (warning: trigger warningS)

Alexis Knight used to be an ordinary girl. That was until the Kraang kidnapped her from home and threw her into the dimension of the Teenage Mutant Ninja Turtles. Turned from human to a hybrid mutant, Alexis now has to face the world with the turtles. Follow along as the secrets behind her capture slowly come to light. Maybe there's romance in store too.

As the turtles are going around to right their wrongs collecting the mutagen that spilled, they realize with each case that the mutagen has had more unlikely cause and effect than they realized. AU of the TMNT 2012 universe. I do not own TMNT or any of its characters.

What if Donatello had a completely different backstory? One which lead him to despise Hamato Yoshi, and look up to Oroku Saki. But this version of Donnie is going to be in for a rude awakening when he meets Yoshi's Disciples and their messed up alien infested world. Human Donnie AU. 2k12 Verse

A accident in the lab, now their human! Will turtles get their old life's back or will they meet trouble on the way. They may look normal but they may never live normal lives. (Story starts off cringe but I promise it gets better lmao)

Full Summary Inside

Full Summary Inside

After the avalanche, Leonardo realizes he's injured. No biggie though! Until the Shredder decides to use him as a punching bag. He really needs to start telling his brothers when he's injured. Bay Movieverse.

Here they were. Creatures who should be confined to the pages of myths, but were right under the waves, just out of sight and reach. Donnie has always been a part of them. He didn't know until they rescued him from the EPF at the docks. Now, he must balance two lives, too afraid to tell his family that he will eventually become the very thing they are preparing to fight... 2k12, AU

Vanessa Black has transformed from a human girl to a giant Black Widow! The Turtles shelter her but Vanessa has to deal with Raph's hatred of bugs. all the while trying to solve the mystery of this new Mutagen while others are also seeking to harness the new Mutagen for their own purposes

Now that the world is saved from the Kraang invasion, the turtles face another foe: Agent John Bishop. But things get worse when Bishop and his team are accidentally involved with opening the gate to the Prison Dimension. Now Leonardo must find it in himself to conquer his fears and help his family to save Earth once more.