While the premise of Isekai anime may sound somewhat simple, the stories within this genre of anime often involve elaborate and intricate world-building, where the audience is introduced to the cultures and ecosystems of the newly introduced world. This is particularly apparent in Isekai anime like Sword Art Online, Overlord, and The Rising of the Shield Hero. Over time, what started as a template become developed to extensively explore the worlds introduced by the anime, detailing the history and mythology of the communities that make up the unique environments. To keep the viewers invested, the creators of Isekai anime often create narratives that allow characters to explore and interact with their surroundings or assist in an ongoing war or conflict, making it feel more like a living, breathing world over time.

Isekai anime also typically involves a protagonist who starts off weak, and over time, evolves into powerful beings as they gain skills, knowledge, or build alliances within the new world. The influx of RPG-inspired mechanics additionally allowed the creators of the genre to include unique, entertaining character progressions, making it feel like characters were progressing through a video game as they develop naturally over time. For example, in the anime That Time I Got Reincarnated as a Slime, the main protagonist starts off as a basic slime who grows into a formidable entity over time, building friendships and alliances with other characters along the way. This model of storytelling involving weak, but endearing protagonists who grow into powerful characters over time, has inspired many other anime creators to adopt a similar formula. 

Another common aspect of Isekai anime is the usage of powerful and significant game-like mechanics in anime plots. Magic, invincibility, status screens that mimic RPG games, and virtual-level systems are some of these mechanisms that are commonly used in the genre to give a sense of immersion to the audience. They help maintain the viewer’s engagement and investment in the anime while making it more memorable. Such structural mechanisms are present in anime like Re:Zero ? Starting Life in Another World and Isekai Cheat Magician, among others. These features add an extra dimension of engagement for the audience as they become immersed in the story and can relate to the protagonist more often.

Another notable trend in the Isekai anime genre is that the main characters are usually average individuals with no special talents or attributes. They are often ported into the new world without their prior knowledge or understanding of what is going on, setting up the foundation for the narrative to unfold. Additionally, the central characters often have to learn how to navigate the unfamiliar territory, testing their mettle in various ways as they learn and adapt to the rules of the new world. As a common trope in the genre, this presents the creators with an array of possibilities in shaping characters and story situations with vast potential for character and plot twists, turning simple characters into complex, well-written characters.

In conclusion, the Isekai anime subgenre has proven to be a trend that is energizing and captivating for anime lovers worldwide. Over the years, the genre has experienced a transformative journey from the classic days to the present day, where it has evolved with new trends just as the ever-changing anime community continues to grow. Powerful and significant game-like mechanics and a character-driven approach, along with stunning animation quality, have helped the Isekai anime scene to bloom. With the dedication and experimentation of seasoned creators, the possibilities are endless for opening new dimensions and avenues for exploring the world of Isekai anime for years to come.