it's not dead as a few days ago, the game got a public release of 0.1 https://meshisoftworks.itch.io/vessel-tactics/devlog/740136/vessel-tactics-v01-i...
do keep in mind that the game is a solo dev project so updates will take a while before they come out, not to mention that the dev is a person with their own life to handle
the dev also mainly keeps to patreon for updates about the game, so be sure to check it out if you want to know what's going on for the game (even if you can only glean information from the post titles) https://www.patreon.com/MeshiSoftworks