I built a multiplayer strategy game with no GUI — you play entirely through REST API calls. Register, build a roster, configure teams, queue battles, and climb the leaderboard, all via curl/Postman/your own code.

Every response includes HATEOAS links that guide you to your next move, so you can discover the whole game by following the API. Full OpenAPI spec at /api-docs/v1.

Built with ASP.NET Core 8 and MSSQL. Free tier is fully playable. There's also an education mode for CS instructors to create curriculum modules where students learn APIs by playing.

Solo dev creating for my classes, happy to answer questions about the tech or design decisions.