Acrophobia is an online multiplayer word game. The game was originally conceived by Andrea Shubert, and programmed by Kenrick Mock and Michelle Hoyle in 1995. Originally available over Internet Relay Chat, the game has since been developed into a number of variants, as a download, playable through a browser, via Twitter or through Facebook. Background Created by Andrea Shubert in the mid to late 1990s, she developed a "spiritual successor" called TAG: The Acronym Game for startup gaming company play140. Game play Players enter a channel hosted by a bot which runs the game. In each round, the bot generates a random acronym. Players compete by racing to create the most coherent or humorous sentence that fits the acronym - in essence, a backronym. After a set amount of time expires, each player then votes anonymously via the bot for their favorite answer (aside from their own). Points are awarded to the most popular backronym. Bonus points also may be given based on the fastest response and for voting for the winning option. Some implementations give the speed bonus to the player with the first answer that received at least one vote; this is to discourage players from quickly entering gibberish just to be the first. Bonus points for voting for the winner helps discourage players from intentionally voting for poor answers to avoid giving votes to answers that might beat their own. Some versions of the game were criticized for the ease with which players could disrupt games with obscenities, and the anonymous nature of the site meant that there were no repercussions for this behavior. Usually, nonsense backronyms will score low and the most humorous sounding backronym which effectively makes a sentence from the initials will win. Some rounds may have a specific topic that the answers should fit, although enforcement of the topic depends on solely on the other players' willingness to vote for off-topic answers. Acrophobia was commended as an online game that showed the potential for educational use, and that its use of technology allowed "imaginative play, instant feedback, and [an] unusual scoring system." An example game typically goes as follows: a 3-letter round a 4-letter round a 5-letter round a 6-letter round a 7-letter round Then, it goes back to 3 letters and starts the cycle over. Once one player reaches 30 points, the top two players at this point are chosen to face-off.