This is a mod made with tModLoader for Terraria. The goal was to add viking related content to the game through new enemies, items, biomes and other content. This was originally a project started by someone online to which I later joined as the primary developer due to common interest. It was my primary job to create back-end code that would allow the fast creation of new content (items, enemies, etc.) without the other non-programmer needing to write much code. I was also responsible for making sure all the content was multiplayer compatible and properly synced between all clients.
A lot of the progress (including images and gifs) can be seen in the forum post. The code was also made open source due to interest from the community.