Hi
From the game description, what I understood, as a console gamer, you want a hybrid combination of a fantasy genre mixed with scienfi, much like what horizon did, or recently what cyberpunk has been able to achieve.
The storyline in a retrospective way, which will depict the story progressing from the past, telling how the main antagonist came into what he/she is today.
If we are to mix magic and science, it might as well include time travel scenarios to make things more convincing, and the environment design more justified.
Here's a brief story I am thinking of:
The main antagonist is a tech genius of the present, obsessed with unlocking brain capability to the maximum, increasing human intelligence. In his research work, he comes across a revelation of a device that could be integrated in his brain to achieve exactly what he desired. The integration happens successfully, and while the brain functionality quadrupled, so did the continuous web of thoughts and concerns, driving him mad over time. He now aims to remove the device, but nature defies, as this would result in his immediate demise.
On a journey to Shambala, a religious scholar directs him to an old Mayan magic, a mythic artifact owned by the Mayans in the 10th century which is able to transfer souls from one body to another. To try his luck, he builds a time travel machine, travelling back in time to retrieve that artifact.(characters restrictions)
Awaiting for your response
Thanks
AM