Most participants on a single-player online videogame

According to Official Guinness Records,

The most participants on a single-player online videogame is 1,165,140, and was achieved by the Twitch community "Twitch Plays Pokemon" who played Pokemon Red (Game Freak, 1996) from 12 February to 1 March 2014.

For a complete list of 2014 records, please visit 2014 Guinness Records in United States.

Related Images

Other United States records that might interest you:

• Oldest milk tooth
• Most expensive hot dog
• Largest cut brown sapphire
• Most skateboard ollie 180s in one minute
• Most basketball free throws scored on NBA 2K9 in one minute
• Largest cut hibonite
• Farthest reverse ramp jump by car
• Largest hi-definition television screen at a sporting venue
• Most bow ties tied simultaneously
• Most people playing draughts (checkers) simultaneously