2025-11-12 –, Ballsaal
The age-old wisdom for adding multiplayer to a complex single player game is: Don't.
This talk will cover how we added mixed local and online multiplayer to an existing codebase of tens of thousands of lines of GDScript and how you can think about systems in your game to do the same.
Chris is the founder of KAR Games, working on the early access title Drift: Space Survival and the multiplayer update for Dome Keeper. Before getting into games, Chris spent a decade in the startup world as a serial founder and CTO. His three kids are likely to be seen climbing on him during Discord calls.
At GodotFest 25, Chris will share his experience adding mixed local and online multiplayer to Dome Keeper, a complex single-player game with tens of thousands of lines of GDScript. This talk will cover the challenges and solutions encountered when retrofitting multiplayer into an existing codebase, including playtest feedback, common bugs, and engine modifications required for multiplayer input handling.