Turn Ideas into Playable Simulated Reality
Step into real-world scenarios — AI characters react to your choices in real time.
How it works
Three steps to start playing
Pick a scenario
Browse published simulations or generate your own with AI. Each game has unique characters, goals, and challenges.
Make choices
Chat with AI characters who react to what you say. Negotiate, persuade, strategize — every conversation is different.
See the outcome
An AI judge evaluates your decisions. Did you meet your goals? Manage your resources? Learn what worked and what didn't.
Why Fantasim.ai
Built for learning through play
AI Characters
Each character has unique personalities, moods, and strategies that evolve based on your actions.
Real Conversations
No multiple choice. Type what you'd actually say — the AI understands and responds naturally.
Goals & Resources
Track objectives, manage limited resources, and make trade-offs just like in real life.
Play Together
Invite friends with a code and tackle scenarios as a team. Everyone's choices matter.
Create with AI
Design your own simulations from a text prompt. The AI generates characters, goals, and resources for you.
Every Game is Different
AI characters adapt to your choices, so no two playthroughs are the same.