The title says it all.
This game is a work in progress. It may or may not change over time or release as a final product. Purchase only if you are comfortable with the current state of the unfinished game.
https://store.xbox.com/en-US/Xbox-One/Games/Happy-Dungeons-Game-Preview/9c4f29a0-9d30-4c40-a8dd-15c1c48d307e