What if humanity was being pushed to extinction by a strange yet similar forces? And what if there's no longer a place to retreat, to fall back? But, what if a second chance appeared? A chance to make a better start that will save the rest of humanity.

We always thought if we face any kind of alien incursion they would come from the skies. We were wrong they came from the Oceans instead. Man-Eating Giants invaded our cities, they were hell bent upon the extinction of the Human race. We fought and Drove them back. The World united under the banner of UN as we ventured into the Unknown land from where these beings originated from.

Going to high school was tough for Ryker Westings. Going to high school while being bullied even tougher. Going to school with a medical condition and getting bullied was the definition of difficult. The only escape came in the form of volunteering on the USS Massachusetts on the weekends. However things changed when he met her. AU

A Gate opens up in the heart of Ginza and the invasion that come leaves thousands either dead, wounded or missing. Little did the invading army realize, it would not be just one nation that would respond to their hostile actions.

"In the end, it isn't hope that called out to me. Not the desire for someone to save them, to give them mercy. I failed at that once, and would never be able to answer that call. It was vengeance. The simple human need to make sure that whoever hurt you, whoever hurt those you love, will never be able to do so again. To ensure that even should you die, that your enemies would too."

Shortly after the fall of France a magical gate apears in Berlin and starts spewing forces of the Saderan Empire onto the streets. But how does the empire react after realising they attacked a nation that conquered most of the continent in a year. NOTE: This work will contain violence and suggestive imigary, viewer discression is advised (on hold)

After a battle takes an unexpected turn, an entirely new world is revealed. In a strange yet familiar world, ships are given life but now fight alongside jet planes, unimaginable technology, superweapons, and missiles galore. Two worlds collide and now a chain of events is about to unfold.

Picking up where CV12Hornet left off, the shenanigans of these girls are endless!

A retelling. After over a decade of war, Japan is a broken nation after its defeat. With the Guns silent, many hope for peace. But when 2 Gates open leading to another world, those guns won't be silent for long.

It was naive to think these creatures—these titans— where not a force of nature. They were changing the planet faster than anyone could imagine, restoring rainforests, stabilizing polar ice caps. Once again, humans have begun to worship them as gods, even claim to communicate with them. But that was impossible. These creatures couldn't be capable of higher thought, could they?

August 19th, 2016. France is the victim of yet another attack. But this time, they were not terrorist, and it changed History forever. [FORSO patch design by Katmada20XX]

When the Milky Way is revealed to the universe at large by a derelict CIS warship, the UEG are forced to become members of the transgalactic community, but its existence is soon threatened by the decline of the Republic, and the rise of an Empire. Adopted from SpaceCowboy2013.

Few years after the events of Halo Wars, the UNSC Spirit of Fire finds themselves above the orbit of a unknown world without any clue to where they are and what brought them here. Faced with a new obstacle the crew of the Spirit of Fire descends upon the world where they meet new allies and enemies, along with an relic of the past, as they try to find a way back home.

As the apocalypse draws ever closer, a new power will be born. With the strength of over one hundred heroes, a failure of a master must overcome the world's strongest; the future of humanity lies in the hands of Kamen rider Diend, Gudako Fujimaru. The Grand Order has begun, a new history is born with one key word: "Henshin!"

In Year 2137, the Gate opens in the middle of Central Park in New York City. Needless to say, they were repelled by Jaegers and the United Nations Defense Force, and a blockade has since been built around the structure. Soon after, the UNE decided to send an army to the other side of this portal to confront the Empire, and thus, the Jaegers fought in Sadera.

For us the storm has passed, it's time to honor those who never return in this dreadful voyage. As human carved their loved ones' names to a stone pillar of remembrance, they carved ours' into their hearts as an utmost symbol of gratitude, and in them we would never be forgotten amidst time for it is the greatest way they honor us. UNSC Enterprise, requesting immediate recovery.

After 10,000 years the Undeads were once again unleashed onto the Earth, and only four warriors that uses the power of the Rouze Cards can stop them. But they soon learn that mysterious Cards known Class Cards that holds the spirit and powers of legendary heroes throughout history, and left uncheck they would endanger their city, is up to them and two magical girls to stop that.

Tristain faces trying times as Princess Henrietta's arranged marriage is cancelled. Albion has fallen to Reconquista. The fate of Tristain hangs in the balance. Maybe even Halkegenia's. Yet the unexplained happened... will this be salvation or doom?

To combat a brutal communist regime emerging from the ashes of the Soviet Union the United States builds an AI to give them an edge. Little do they know this edge may be enough to help them defeat an ancient evil.

As the conflict between the two powers rages on, Yorktown became a casualty over Midway. Little did she know that she was heading for another...

After their escape from the Ark and a 7 month Nap, Chief and Cortana find themselves in the Sol System, but not the one they know, Earth is all but Destroyed by a Tyrannical Race known as the Gamilans, they must help the crew of the Space Battleship Yamato make her Maiden Voyage to Iscandar and back within a year to save Humanity from Extinction

Two worlds become connected through unknown means. One world led by a far more liberal United States, the other where the Axis Powers won the Second World War. Realizing what is at stake, the two worlds will clash in a titanic struggle that will decide the fate of those in both worlds!

43 years after an alien invasion ravages the Earth, humanity is still recovering when a portal to another world opens in Iceland. With it comes an invading army who sought to conquer all before it. When Iceland falls to this new enemy, the United Nations Defense Force is tasked with liberating Iceland and sending a task force to the new world beyond. (AU)

Tokiwa Sougo a normal 18 year old student with a dream of becoming King is met with a dark future. In where he becomes the most hated Overlord, and that he destroys the world. Things only continue to change as as he's brought into the Chaldea Security Organisation, and is tasked in saving the world. All while collecting the powers of other Riders from other universes. RIDER TIME!

At the edge of despair, he grasps onto a spark of hope. When his old life ends, a new one opens its door. A new purpose drives him to become a beacon of final hope for those drowning in despair. Only now, he has been dragged into a war with seven others. Can he stop the enemy from taking the Grail or will all fall into despair? He is the Yubiwa Mahoutshukai...Kamen Rider Wizard.

One year after the events of Battlefield Bad Company 2, peace has been achieved. As the four members of Bad Company return to the U.S., a mysterious Gate opens up in Seattle. It is up to the U.S. Forces to fight these strange new creatures and explore a new world.

Emiya Kiritsugu was happy living the rest of his short days. He had put his past behind him... until he began to dream of futures that had yet to be. Let it be known that the Magus Killer was not dangerous simply because he was dying and had no plans to fight.

The Empire believed there was no nation that could defeat them. Unfortunately when the Gate appears once again, it brings from the other side not only a single powerful enemy but three. This happens in the future of a different timeline where Mexico, USA and Canada have formed... The North American Union.

8 Years after the end of the Reaper war a magical gate opens in Vancouver on earth. The Alliance recovering from a galactic war is thrown into yet another war(this time without andromeda) Cover is made by Bioware for the Mass effect 3 Multiplayer Earth DLC. (Post ME3)

Just a revision of the 1992 Godzilla vs. Mothra/Godzilla and Mothra: Battle for the Earth tale, trying to correct some of the flaws that people tend to harp on.

After the disastrous defeat at Midway, the Empire of Japan had suddenly been transported into another world! With the territorial gains they have acquired in the past six months since the beginning of the Pacific War, watch as the Empire shall make the sun rise above those who oppose them as they did in our world. A "Summoning Japan" fic.

(This story is based of inspiration from GATE. Will take suggestions for future chapters and OCs.) While an off duty marine is on a cruise, the ship he is on is boarded by medieval soldiers from another world. People are taken and in retaliation, the US send a fleet through a portal to get their people back. But when slavery exists in this world, they also bring liberty with them.

From another world of magic and fantasy, a gate opens in the Streets of Ginza. An army of medieval and Renaissance clad Armour with fantasy beings invade Japan. The World unites to fight those aggressors and have justice for the victims in Ginza. Unknown to the people of Earth, one of its own is still trapped there waiting a chance if the possible return home. (Hiatus)

Story idea for a Gate x Godzilla Crossover. Story starts at Chapter 2.

Darth Sidious had a plan and a place for everything. However, it is all put at risk when General Grievous's campaign comes crashing into Earth. When the Jedi race to the planet's defense, no one could foresee what would happen next. Will Sidious's plans survive the invasion, or will Earth spell his end? Finally, can Earth survive it's violent introduction to the galactic stage?

The world has never been the most stable of places, what with countries fighting for power, rising tensions, and a presidential election in full swing. But when a massive typhoon spawns out of nowhere and cargo ships begin to go missing, the world's stability is only going to get worse. Set at the very beginning of the Abyssal war.

We all know how the Final Countdown ended. The Nimitz got sent back to the future before she could stop the attack on Pearl Harbor. Well, what if she didn't? Now, in this redone version of the Final Countdown, we learn how much an aircraft carrier of the 1980s could change the Pacific War.

1940. Un mes después de la Batalla de Inglaterra, y un año antes del ataque a Pearl Harbor. 5 puertas misteriosas se abren en 5 lugares diferentes, desencadenando luchas, sangre y destrucción. Ahora, sera cosa de los países más poderosos del globo devolver el golpe. Pero... ¿podrán vencer lo que encuentren allí? Después de todo, el ser más adaptable a la guerra, es el ser humano.

The fleeing refugees of the 12 Colonies encounter the UNSC Infinity. It seems that their problems are over as the UNSC can easily steamroll the Cylons with just this one ship. But what if the Cylons knew of a weapon that can wipe out all humanity more efficiently than nuclear bombardment of 12 planets?

The War over the Space Elevator has come to a close. However, a mysterious Gate appears in the Ginza district of Selatapura. With it came out Medieval forces intent on domination. In response to this aggression Osea and Erusea formed a Coalition called the Special Region Forces, to explore the skies of the other side of the Gate. DISCONTINUED.

Sequel to Contact of Kobol and Contact of Races. Earth and other worlds are united in the Tau'ri Alliance, with the advance technology from the Ancients and the Asgard they are the most advanced culture in the Galaxy. Now they must travel to a distant galaxy to finish the mission of the Destiny only to contact the Citadel Council and the Reapers. (Stargate Sg1/Mass Effect)

A simple act of chance forever changes the course of history. On September 11th 2026: The Goddess Hardy unleashes the GATE not on Tokyo but on New York City, as war between the United States and the Saderan Empire explodes across the Special Region the greatest weapon maybe the one thing the US has long taken for granted: It's Ideals

Post Human-Covenant War AU. After the Great War, all the UNSC wants to do is rebuild and live in the peace. A peace that so many died for. What happens when they learn that no matter what, war will always find them. Chapters Updated - Chapter 11 uploaded (07/08/2019) Any criticism and/or tips welcome.

After defeating Kayaba, the players expected to be logged out and return to their normal lives. They were wrong. How would the citizens of Aincrad survive in this strange new world. How will the Earthlings react to the existence of another world. What path will Aincrad and her people take in these times of turmoil.

What if the Gate opened in Manhattan in the middle of World War 2? The United States opens a new theatre in the war against this mysterious foe. Rated M for strong language, violence, and suggestive themes. OC warning too, I guess.

In Summoning Japan, the novel, the pacifist Japan was summoned to the world where they could've easily ruled over. However, due to their pacifist selves, they denied the notion and remained peaceful. In another world, what if Britain was summoned? What would Britannia do to those whom threatened her? [A trilogy similar to GATE Fics where X country smashes Saderans, more lore tho]

It's the eve of the centennial anniversary of the beginning of the Human-Covenant War. A mere twenty years after the discovery of Prothean Ruins on Mars. A simple case of poor communication leads to a brief but violent conflict erupting and leads to the United Earth Government and it's military arm the UNSCDF coming onto the Galactic Stage of politics, mysteries, and adventures.

20 years since Godzilla's disappearance from San Francisco, a mysterious organization has finally crossed the line. Through use of a new genetic splicing technique, they have created human-Godzilla cross-species. However, one has broken loose and they aren't happy to let it run wild

After 2000 rules - and 2000 incidents behind the rules - you'd think the shipgirls of the world would figure out how to behave themselves. You would be wrong.

The Infinity. The pride of the UNSC, has been transported to Halkegenia along with two of her escorts after a failed summoning by lousie. Stranded in uncharted space and no way to contact home, How would the thousands of brave sailors and soldiers of Earth and her colonies adapt to their current situation? The UNSC has arrived on Halkegenia, and they are here to stay.

A story of Friends, War, and a grunts life. And a conflict from the eyes of people from both sides of the Gate

It's 2020, the Lighthouse War is over but what happens when a gate appears out of nowhere in Selatapura and Roman-like soldiers and dragons come through. Well, the Empire is in for one hell of a surprise when they come across the Ace Pilot known as Trigger AKA Three Strikes. (Result of Challenge by TheAzureKnight) P.S. SPOILERS for Ace Combat 7

The seas will rage as the crew of the USS McCampbell enter the forefront of an expedition to an unknown land. What will transpire will shape history across the Gate and define the world back home.

Gai Kurenai has traveled across the universe for many years. But now a new darkness is coming and the new world will need the light of the giant of light again.

Over 150 years after the War of 1996, the United Systems Alliance now has to face the wider galaxy with fewer ships, better tech, and a fear of alien species caused by a war that united the world against a very real alien threat. Now they have new troubles on the horizon...

In 2621 a Galactic Republic vessel is found in the Orion Arm, this springboards the United Earth Government into a galaxy at the start of the Clone Wars. A war that will test the 2nd UEG Expeditionary Force as well as the UEG finding out where it fits in this new galaxy, and their new neighbours.

"You can go home when the tank says you can."

After the end of the Vietnam War, the United States Military has been shamed facing slander from both home and abroad. But in the year 1985 a portal to parallel dimension opens in Japan and the United States is given the chance to redeem itself.

An unknown force has disrupted the foundations of humanity. Chaldea, which seeks the preservation of humanity, fights to reclaim the future with the help of the Heroic Spirits. However, with powerful threats from both Earth and space alike appearing, the future appears to be swallowed in darkness, but in Chaldea's and humanities' darkest time, a new light rises: Ultraman. OC/Harem.

A collection of stories, behind the stories which forever changed a Galaxy which was not so far away. Ratings may change for future chapters.(ON EXTENDED HIATUS)

In 20XX, a mysterious GATE appeared in Ginza, Tokyo along with an invading army. As the invaders attacked, innocent tourists from many countries are savagely attacked. A mighty coalition is set up to bring those responsibles to justice. Thus the Canadian soldiers of the Royal 22e Régiment, amongst others, are thrown into this brave new world. This is their story, their legacy.

"One last job." That's what Nathan Moore has said for the last five years. "One last job and I'll retire." When the company he works for signs a contract with the government of Japan to send an armed escort with a representative from Hashimoto Technologies into the Special Region, his "one last job" might truly be his last.

Dr. Carol Dawson, a NASA Engineering and Public Relations consultant, is offered the chance to support an American-Japanese joint space program on the far side of the Gate. During her mission, Dawson must contend with superstitious natives, secretive officers, and a risky international plot with the fate of two worlds hanging in the balance.

The Second World War is at its peak when the Allies invade Europe. What happens when they get a little bit of help from the future in the form of a highly advanced and nearly unstoppable tank? UPGRADED TO FULL STORY!

the Galaxy has More than one Alien race on the Universe. the Systems Alliance is made of Humans and Fantasy races and young races and Exiled citadel races, the other Alien Major powers will take advantage or thrive in peace or stay Vigilant in the times of war. DISCONTINUED

Commander Sebastian Lyall leads the elite black ops fleet known as the Titan's Shield. It is the largest collection of UNSA ships that guards all UNSA Colonies in the Solar System and beyond. However, whilst on patrol for Fleet Week alone, it is left to the UNSA Titan, Tigris and Retribution to keep Earth safe from the SDF and the evil clutches of Admiral Salen Kotch.

She'd served with distinction, done what need to be done to achieve peace. She sank beneath the waves for her caused, her eternal slumber well earned. But now the world called out to her once again. She was needed, and she would answer. [Reposted from Spacebattles]

The scrolls tell that 13 tribes left the birthplace of humanity on Kobol, 12 went one way and the other Earth went another only to lose all contact with their cousins. It is written that one day they would reunite but when they Earth meets their cousins it is not what they expected and it would cost both sides in blood. (Stargate SG1/Battlestar Galactica)

War was never rare to Strangereal. But in 2010, during the greatest war to engulf the planet, a far greater threat appeared. Now, the entire world is united in a war against one foe: The Race. Canon and OC POVs. UNDER REVISION

It all started with one stupid decision, and spiraled out...

War rages with the Abyss, and all the shipgirls of the world have been summoned, save for one: Enterprise. Despite many attempts, she remains unsummoned. Or, at least, that's what humanity thinks. Three years is a long time to spend behind enemy lines...

Funky, almost outright magic, was something that Admiral James Thompson was quite familiar with. Ship Girls operated on the stuff after all, and let's not even get into the Abyssals. But outright getting shot back to serving aboard the girl he considered his best friend? That wasn't something he could really say he expected with his life...

Slowly, I recovered from the light. The first thing I saw was several orbs of light hovering around my Servant. She had pink hair done in short twintails, a pair of fox ears and a fluffy fox tail. She was wearing a blue, traditional ero-kimono, geta and a mirror on a necklace around her neck. And she was absolutely, breathtakingly beautiful. "I ask of thee, thou art my Master?"

A young girl who wishes for the most powerful Servant to serve by her side gets what she asked for... though who said only humans can become legends?

An incident on a remote island off the coast of Japan heralds a turning point in the war against the Kaiju. Standing against this new threat, alongside the continued invasion of monsters through the Breach, can the Pan-Pacific Defense Corps defend the Earth? Or will the order of Nature be restored.

KR Blade/Fate/Stay Night xover Fate's change and they are realized in ways they aren't imagined. From the release of immortals to a Battle Royale between heroes from space and time. Follow the journey of Shirou Emiya, Kamen Rider Blade and Master of Saber, in his fight against Undead and the Holy Grail War. To be a protector of Justice. Pairings: Undecided.

In the 26th century humanity along with the sangheili, san'shyuum formed the Orion Systems Alliance the center of galactic government in the orion arm of the galaxy, soon the OSA will meet the citadel council and discover a billion year old secret.

MASS Xover with Independence Day, Battle Los Angeles, Battleship 2012, and a bit of Space Battleship Yamato. Seriously, why the idea of a Mass Effect Crossover with Independence Day haven't been done yet confuses me. So yeah, this is my second series of my Alternate Humanity stories. Hope you enjoy!

Kirigaya Kazuto, Kirito, Beater of SAO, and now a Spriggan in ALfheim online, is fighting to save the love of his life from a fate worse than death. Louise De La Valliere, third daughter of the Valliere family, and student of the Tristain Academy is fighting to prove herself. Two worlds collide as a summon goes wrong and Tristain finds itself with some very confused new residents.

In 1942, the alien known as the "Race" arrived in Earth's orbit and invaded the planet in the midst of World War II. The events that occurred happened in another universe. But what if fate allow the Race to wait another 70 years to their invasion plan... (As of 2016, story is declared dead fic.)

A Hammerhead-class Cruiser crashes on Earth in the Unknown Regions 500 years before the Star Wars Saga, and the people know what will happen in the future. And so, they make a plan 500 years in the making. Rating might move from T to M.

What if not all of the Protheans died? What if they destroyed a Mass Relay in one system to save one race from their fate? What would be the result?