Demeo x Dungeons & Dragons: Battlemarked is a cooperative fantasy dungeon-crawler/tactics RPG set in the Forgotten Realms. It was released in 2025 simultaneously for PC, PS5, and Meta Quest, and was developed and published by Resolution Games.

I worked on this project for 2 years (with a 6 month gap in between to go on parental leave) as a gameplay programmer, primarily working on implementing game mechanics using a test-driven development approach. I also developed tools to aid game designers in their work, did localisation programming to allow the game to be localised to multiple different languages, and also did additional game AI programming.

More information about the game can be found at its page on the Resolution Games website.