Question: Is there a game that lets me explore a dynamic world by typing commands and making choices?

If you're looking for an ever-changing world to explore through typing commands and making decisions, AI Dungeon is a great option. This infinitely generated text adventure system uses deep learning to create a world that's rich and immersive. You can control your adventure by typing commands like start, help, quit, save, and load, and explore the world with commands like look, take, and use. It's great for text adventure enthusiasts and anyone curious about AI-generated content.

Another option is AI Adventure, an open-source text-based RPG foundation that uses sophisticated AI to generate new storylines. It's got an infinite number of ways to customize it, and an adventure editor to build and share your own. You can explore and interact with characters, and find community-created adventures labeled by genre. It's geared for people who want to get under the hood and customize and experiment with storytelling.

Backyard AI also is worth a look with its text adventure and interactive storytelling foundation. It's designed for offline and online use, with a privacy-first design and no setup required. The service includes a desktop app that runs AI models locally, giving you full control and privacy over your data. It supports more than 100 language models, and has a variety of pricing plans for different needs.

If you prefer a more story-focused experience, Hidden Door offers social roleplaying in officially licensed worlds like The Wizard of Oz and Pride and Prejudice. With features like player agency and multiplayer, you can create and play through new adventures with friends. The service is geared for community and creativity, so it's a good option for people who like interactive storytelling in familiar fictional realms.