If you want a game that lets you interact with virtual creatures in the real world, Peridot is a great option. This mobile AR pet game lets you adopt, care for and form a bond with colorful, unique creatures called Dots that interact with the real world, recognizing environments and objects, and that you can feed, pet, play with and dress up. The game encourages community interaction and creativity through multiplayer gameplay.
If you want a more active, AI-powered companion experience, check out DreamPal. There, you can create your own customizable virtual companions that you can chat with by voice, text message and image request. The AI learns your personality and preferences, so interactions become more personalized over time. It's a good place for roleplaying, and it's got features like automated greetings and character merchandise.