AI Dungeon is an entirely text game where you can do basically anything you want. You type a sentence and then the game will generate a response to it. The game is still in development so sometimes the responses don't make sense and you have to regenerate another response to replace the one it gave you but for the most part the game gives responses that make sense in the context of what you typed. You can set the parameters to whatever you want. If you want a game taking place in a scenario based on the real world, click on "prompts" and then option 6, which is "custom" and then type in whatever setting you want. Otherwise you might end up in a fantasy world of some kind. If you want your character to be a serial rapist or a brutal killer or the nicest person on the planet it is entirely up to you. One thing though is the game will only remember the story back so far, so if you want it to remember things like your character's name and why the police aren't going to arrest him if he rapes or tortures someone right in front of them then you should click on "pin" and type the reason in there so that the game remembers.