After Donnie managed to save a girl from a burning building, he received an odd message that he needed to decipher, which he feared might be connected to the girl. Warning: The story contains horror elements and highly disturbing content.

"Mikey was tired. Tired of waking up, falling asleep, eating and drinking. Tired of having to argue his way so that he wouldn't be judged for something he hadn't done. Tired of not loving himself for who he was, and how he constantly battered his very well-being. Just then, he would've admitted he wasn't just tired, he was exhausted."

During the final fight with Super Shredder, Leo's brothers did not survive. This leaves a gaping hole in the lives of all who knew them, with it being the most pronounced in Leo. As he struggles to adjust to life without his siblings, he starts to experience strange things around the lair. Is he losing his mind to grief, or did his brothers never truly leave?

Being a Ninja is tough enough, especially when you're a teenager. So, when it comes to two of our favorite turtles, they decided to take advantage of their age and have some late-night fun out of the lair. Enjoying some bonding time with one another. Brotherly Fluff involved.

After a mission gone wrong Leo finds himself in a future where a new ninja clan has managed to not only take over New York, but the whole world. He joins a group of rebels in their efforts to take down this clan while also attempting to find a way back to his own time, but he feels like his new allies are hiding some things from him...

Mikey gets a crown that allows him to alter reality, but it is also cursed to drive its wearer insane. He quickly descends into madness, naming himself the king of New York and changing it into a surreal party kingdom. Leo finds himself having to fight his family and friends in order to save the world from Mikey's madness.

It has been a few months since their father's death and all of the turtles are trying to move on with their lives. Leo is struggling the most to the point of neglecting his needs. Eventually it gets to be too much, and his brothers become desperate for a way to help Leo despite his stubbornness.

After their final battle with the Shredder Mikey's been having horrible nightmares of unfamiliar battles and events. Then a malfunction sends them and Splinter to an alternate world where they meet their younger stealthier counterparts, a Splinter who was/is Hamato Yoshi, and a monstrous Shredder who's out for their heads. Starts in the '03 world then goes to the 2012 world.

En suivant leur père sans autorisation, les quatre tortues ninjas rejoignent à un grand tournoi intermonde. Des alliés seront retrouvés, de nouvelles amitiés seront créer. Mais derrière les combats et la bonne ambiance apparente, le tournoi cachent de sombres secrets. Les tortues et leurs alliés vont être pris malgré eux dans une spirale de complots et de manipulation.

The Sequel to Worlds Collide a crossover with the Tabletop RPG Shard, Chanchalla a Sheep Janah from the World of Dardunah must return to her homeworld with the Turtles to defeat the evil Devourer they must reunite Chanchalla with her family who have all been sold into slavery to complete this task

Taylor's decision not to move out seemed like the right one at the time. She never considered that the turtles and April would want to stay in each other's lives - or that she might have to choose between a safe life and an extraordinary one. Sequel to "Raphael's Big Mistake".

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

The Lotus Ninjas find themselves dealing with new creatures known as Yokais while also dealing with the drama between the Shadow Clan and the Onis, and participating the annual Wiccan Nexus.

2012 series Humanized Leo, Raph, Donnie, and Mikey aren't all related by blood, but they all see each other as brothers. They are all the same age just a few months apart. They're orphans who all share a room due to having medical health issues. Leo has OCD Raph is Bipolar Donnie is Autistic Mikey has ADHD They all have PSTD due to how they lost their parents. Splinter adopts them.

One stroke, another tear. Another dap of paint, another color. Black, white, green, pink...anger, depression, jealously. The list goes on and on, and the sad thing was...he was all alone.

Set in 2003 cartoon. Post Good Genes. After an impromptu raid on an EPF lab, the four turtles are now in a race to gather the mutants they released into New York. With Bishop and his men also searching for the mutants, can they find them before the humans catch them.

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 17/Mayo/2024

Eran demasiado hermosos... aquellos crisantemos de delgados pétalos de color amarillo ligeramente anaranjados en el centro que decoraban el laboratorio... sí, eran hermosos... pero extremadamente dolorosos al pasar a través de su garganta.

Lord Simultaneous had called Donnie's nightmares "echoes in the timestream" and told them to deal with them. That was easy for him to say. If he was the one holding his twelve-year-old brother after he had just relived the most traumatizing event in his previous life's experience, Raph was certain the short Time Master wouldn't be so glib. Part of the Little Don AU

Fifteen years have passed since the accident. Now, eight turtles, six brothers and two sisters, born as mutants in the sewers and trained as ninjas by a rat, are forced to leave their destroyed underground home and take the first step into a surface world where they face many adventures and meet new friends and foes, until they meet their toughest opponent ever, The Shredder.

A collection of stories set in the 2012 world and beyond based on songs picked at random.

El temerario Casey Jones no se figuraba la venganza que podía cobrarse el ofendido Shredder por desafiarle...

Amber awoke on April's sofa with a Purple Dragon tattoo, traumatized from dying in her world. Stranger still, she's just one of many in that boat, and familiar faces abound. In a body & world not her own, Amber searches for answers & fights for love in her new life. New lives come with lessons, & the world is a dangerous place for other-worlders. Donnie/OC-centric, R-L-M/OCs.

Set after 'Slash and Destroy.' Slash is out for revenge against Raphael for betraying him and he has decided the best way to hurt the turtle in red is through his brothers. Slash has his eyes set on one brother in particular and he will stop at nothing to even the score. **2017 TMNT Universal Reader's Choice Awards Winner**

But would that fact be enough to embrace practically strangers into their lives? Raph and Donnie hates their lives enough as it is, no need to drag Mikey and Leo into their hell when they've got their own issues to deal with. But fate is a twisted son of a bitch. Human AU with a mix of all TMNT universe. Rated T so far. Just give this story a chance.