Click the giant cookie to earn cookies. Use cookies to buy buildings on the right — they auto-produce cookies. Reach milestones to unlock upgrades shown above. Golden God Cookies appear randomly — click them for big bonuses. Owning 7, 19, 57, 75, 135, 140, 145, 175, or 399 of ANY building unlocks a flat Milestone Reward (not a multiplier). Every 30 cursors adds a new orbiting ring around the cookie. After 1 Universe a milk pool rises — at 10 it turns chocolate, at 100 it turns strawberry, and at 1000 a Milk Boss emerges. Once you have 100 God Cookies (the final building) a golden cookie spawns every 80s. Earn enough cookies to REBIRTH for a permanent 15× → 135× multiplier (six tiers). After 10 Worlds, ALIENS will start arriving — each alien reduces your multiplier. Click aliens to repel them. The Ultimate Robot Boss unlocks at 350 Universes.