Multiplayer at the speed of light. What is SpacetimeDB? You can think of SpacetimeDB as both a database and server combined into one. It is a relational database system that lets you upload your application logic directly into the database by way of fancy stored procedures called "modules." Instead of deploying a web or game server that sits in between your clients and your database, your clients connect directly to the database and execute your application logic inside the database itself. You ...