This time, the game is a multiplayer affair that lets you play against friends, family members or strangers from around the world.
Before venturing in, though, a word of warning: If it's like Google's other Doodle games, it'll likely be highly addicting. In it, you join up with other players from around the world in a race against another team to collect as many spirit flames as possible. The game is available now, but if you want to play it, don't delay. The team with a maximum number of spirit flames wins the game.
Google hasn't said how long it will keep the game up for but it's a fair bet it won't be around long after Halloween.More news: Unai Emery reacts to Tottenham Carabao Cup draw
It debuted its first Halloween-themed game in 2016 with Magic Cat Academy where players traced shapes to cast spells and defeat enemies, but The Great Ghoul Duel is a lot more complex by comparison. Bring them to your base to collect bonuses such as a speed boost.
Google is getting in the Halloween spirit with a first-of-its-kind Google Doodle that's both interactive and competitive.
The search giant's Halloween celebration pits two teams of four ghosts (represented by green and purple) against each other. This included the integration of Open Match, a scalable, open-source matchmaking system that Google Cloud co-founded. The former uses the mouse or arrow keys to move, and the latter uses a touchscreen joystick. You also get a few for passing through a teammate. At the start of the game, click "Host Game", and you'll get a special invite link that you can send out.