What if you could duel the moon itself in a card game? That’s the premise behind Rise of the Half Moon, a recurring Google Doodle that first launched on October 24, 2024, and returns every month to coincide with the final half-moon phase. It’s one of Google’s most ambitious Doodles yet — a strategic card battler that teaches you the lunar cycle while you’re busy trying to outsmart a celestial AI opponent.
The game was created by Google Doodle artists Nate Sandhart and Helene Leroux, and it transforms the eight phases of the moon into a deck of cards you’ll use to compete for points. You and the Half Moon take turns placing lunar phase cards on a grid, trying to create matches before your opponent does. There are three ways to score: Phase Pairs (placing two identical moon phases side by side for one point), Full Moon Pairs (combining opposite phases like Waxing Crescent and Waning Gibbous for two points), and Lunar Cycles (arranging three or more consecutive phases in order, earning one point per card). The catch? Your opponent can steal your Lunar Cycles by extending them with the correct phase, claiming all those cards for themselves.
What makes this Doodle special is how it evolves. Each month brings a new themed edition corresponding to traditional moon names — October’s Hunter Moon, February’s Snow Moon, March’s Worm Moon, April’s Pink Moon, May’s Flower Moon. Each version features unique artwork, board configurations, and most importantly, a fresh set of four Wild Cards to unlock. These power-ups can devastate your opponent: the Hunter Moon card destroys all Half Moon cards on the board, the Super Moon doubles your Full Moon Pair points, and the Scorpio card blocks your opponent’s end-game bonus entirely. You unlock Wild Cards by winning three games in a row, and they persist even if you lose later — encouraging you to keep pushing for that lunar winning streak.
The board starts as a simple 3×3 grid but expands as you progress through nine increasingly difficult levels. Cards you claim are outlined in white, while the Half Moon’s cards turn black. At the end of each round, every claimed card earns a bonus point, making board control just as important as scoring matches. Here’s a fun fact that trips up many players: what we casually call a “half moon” is scientifically known as a Quarter Moon, because only a quarter of the moon’s surface is actually illuminated.
How To Play Rise of the Half Moon Google Doodle
- Click on the Doodle when it appears on Google’s homepage during the monthly half-moon phase to start the game
- Each turn, choose one of three random moon phase cards from your hand and place it strategically on the board
- Create Phase Pairs (matching phases), Full Moon Pairs (opposite phases), or Lunar Cycles (three or more consecutive phases) to score points
- Play defense by blocking spots where the Half Moon could extend its own cycles or steal yours
- Win three games in a row to unlock powerful Wild Cards, and save them for the later, more difficult levels where expanded board configurations make winning trickier
