A common characteristic is a powerful protagonist. In 'Overlord', the main character is an extremely powerful overlord in the game world. Similar novels often have protagonists with extraordinary abilities, whether it's combat skills, strategic thinking, or some unique in - game powers.
Another characteristic is the complex in - game world. Just like in 'Overlord' where there are different races, territories, and power hierarchies, other similar novels also build detailed virtual worlds. For example, in 'Sword Art Online', there are various levels, dungeons, and types of enemies that make up the complex game world. The in - game economy, politics, and social relationships are also important aspects. In 'Overlord', the overlord has to manage his territory's economy and deal with political intrigues among different factions. Similarly, in novels like 'Log Horizon', the players have to figure out how to survive and thrive in the complex in - game social and economic systems.
The exploration of themes like power and morality is also a feature. In 'Overlord', the main character's actions as an all - powerful being raise questions about right and wrong. Similar novels often delve into how the characters with great power use it. Are they benevolent rulers or tyrants? In 'No Game No Life', the protagonists' actions in the game - based world also touch on themes of power and how to use it in a world with its own set of rules.