Jack-O'-Lanterns return during GTA Online's Halloween events. There are 200 possible locations across Los Santos and Blaine County. Rockstar confirms that collecting ten pumpkins in one day unlocks the Horror Pumpkin Mask and a daily GTA$50,000 bonus, while collecting all 200 in one day unlocks additional rare items and bonus GTA$.1
Our in-game checks found that each pumpkin gives either a trick or a treat. Treats can include full health and armor, snacks, up to GTA$5,000 and 1,000 RP. Tricks can include getting stoned, an explosion, an energy pulse, an electric shock or a random Peyote hallucination.
Collecting all 200 in one day unlocks the Pumpkin Tee and an additional GTA$50,000.
The daily count resets, so collect all 200 pumpkins in the same day if you want the Pumpkin Tee. The ten-pumpkin Horror Pumpkin Mask challenge also has to be completed within one day. Every possible location is shown below, followed by our video guide: