Well, a plot could involve Percy being cursed with uncontrollable godly strength for a while. He has to figure out how to manage it while also dealing with normal demigod problems like school and relationships. Maybe there's a new prophecy that only someone with his level of strength can fulfill, but it requires him to make a great sacrifice. Or, he could be in a situation where he has to use his strength to hold up a collapsing magical structure that is protecting a lot of innocent people.
One idea could be Percy having to face an ancient and powerful monster that was once sealed away by the gods. His godly strength is put to the test as he discovers new abilities he didn't know he had. Another could be Percy competing in a special Olympics - like event among demigods where his godly strength gives him an edge, but also makes him a target. And perhaps he has to use his strength to save a group of mortals who accidentally wandered into a dangerous demigod territory.
A great plot for this fanfic could be that Percy's godly strength starts to attract the attention of some of the more jealous and power - hungry gods. They start to plot against him, trying to either take his strength or get him out of the way. Meanwhile, Percy is using his strength to help his friends in a series of adventures. For example, he might use it to lift a huge boulder that is blocking the entrance to a secret place where they can find a powerful weapon to defend themselves against an upcoming threat. Also, his strength could play a key role in rescuing a kidnapped demigod friend, as he battles through hordes of monsters with his enhanced power.
Well, perhaps they discover a hidden prophecy that involves both of them. They then must travel to different realms, such as the Underworld and Olympus, to seek answers. Along the journey, they learn more about their godly heritage and how to use their powers in harmony. They might also encounter some old enemies of their godly parents who are out for revenge.
His godly strength can be shown through physical feats like lifting extremely heavy objects with ease, such as entire buildings or large boulders. He could also be depicted as having super - fast running or swimming abilities, outpacing even the fastest demigods or sea creatures.
One idea could be Percy using his super strength to lift an entire island that's about to sink due to some dark magic. This would not only show his physical strength but also his determination to save the people and creatures on it.
One interesting plotline could be Percy using his newfound godly strength to take on ancient and powerful monsters that were previously too strong for him. For example, he might face a primordial being and have to find creative ways to use his strength to defeat it.
In a fanfic, perhaps Percy and his friends accidentally stumble upon Medusa's lair while on a quest. But instead of immediately attacking, Medusa offers them a deal. She says she will give them a valuable clue to complete their quest if they help her get revenge on one of the minor gods who wronged her in the past. Percy and his friends then have to decide whether to trust Medusa or not.
Another plot could involve Percy's friends getting accidentally transported to a different realm in the Percy Jackson universe. They have to rely on their friendship and the skills they've learned from Percy to survive and find their way back. For example, they might end up in the Underworld and have to navigate past various challenges without Percy at first.
One idea could be a mortal accidentally stumbling into Camp Half - Blood and having to adapt quickly to the world of demigods. Maybe they have some hidden power that only reveals itself in this new environment.
One idea could be to create a new quest within the game world. For example, Percy and his friends have to retrieve a powerful artifact that was stolen by a new type of monster. This could involve exploring new areas of the game, like a hidden underwater city that has never been discovered before. Another plot could be a tournament in the game where demigods from different cabins compete against each other in various challenges. This would show off their different skills and powers. A third idea is that there's a glitch in the game that's causing real - world problems in the Percy Jackson universe, and they have to figure out how to fix it before it's too late.
One plot idea could be Gaea's redemption. In the original series, she was a major villain, but in a fanfic, she could be given a chance at redemption. Maybe Percy and his friends discover that Gaea was being controlled by a more powerful and malevolent force all along, and they have to work with her to defeat this greater evil.
In a Percy Jackson Tartarus fanfic, a great plot could be centered around Tartarus corrupting the very essence of Percy's powers. He starts to lose control of his water - based abilities and instead they become tainted with the darkness of Tartarus. Percy then has to go on a journey within Tartarus to find a way to cleanse his powers, all while being hunted by the most dangerous creatures that lurk in the abyss.