The anime generally adheres very closely to the novel/web novel. It maintains the core elements such as the nature of the main character Ainz Ooal Gown and his goals. The relationships between the various characters, whether it's the loyalty of his subordinates or the enmity with other forces, are also well - represented as in the original work. There are only a few minor omissions or condensations here and there, mainly to fit the story into the anime's episode format.
It follows quite closely. The anime mostly adheres to the manga's plot and character developments, with just a few minor tweaks.
Yes, it does. The Overlord anime mostly adheres to the manga plot with few differences.
It follows the light novel quite closely. Most of the major plot points are the same.
Somewhat. It captures the main ideas but not all details.
It follows to a considerable extent. There are some differences, but they don't significantly impact the main plot and character development.
It follows to a considerable extent. But there are still some differences to make it more suitable for the anime format.
Not entirely. There are some differences in the pacing and a few details here and there.
The Overlord anime is based on a light novel which has its roots in a web novel. The story was initially created as a web novel by Kugane Maruyama. Later, it was adapted into a light novel, and from there, it was made into an anime. The anime adaptation tries to stay true to the story and characters as presented in the light novel, which in turn was based on the creativity of the web novel. This has made it a hit among fans who enjoy the fantasy genre with its unique take on an isekai (another world) concept.
It follows quite closely. The anime of No.6 mostly adheres to the manga plot, with just a few minor differences that don't significantly change the main story.
It follows quite closely. The anime of Youjo Senki mostly adheres to the plot and characters of the light novel, with just a few minor tweaks.