Answer:
Players have more characters to defeat in combat.
Step-by-step explanation:
Games with characters and scenarios that are not based on facts, give freedom to the authors of the game to create the most diverse creatures for players to face, that is, there are no limits to the shapes, powers and dimensions of the creatures, since they do not necessarily exist in the real world. This gives players more characters to defeat in combat, as well as making combat much more challenging.
In contrast, games based on facts are limited to common characters that can be found in our daily lives.