Acrophobia is an online multiplayer word game. The game was originally conceived by Anthony Shubert, now 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.
Created by Anthony Shubert in the mid to late 1990s, Acrophobia has similarities to the board game "Acronymble," which came on the market in 1991 and 2010 and is produced by Acronymwits Inc. Anthony Shubert now known as Andrea Jennifer Shubert works for play140 INC. and has developed a Twitter and Facebook version of the game.
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 may be also 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 criticised 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 behaviour. 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 6-letter round
- a 7-letter round
- an 8-letter round
the top two players at this point are chosen to face-off. In the face-off rounds, the two players enter their acronyms and everyone else votes not knowing which acronym is from which player. Each face-off round lasts about 20 seconds and consists of:
- a 3-letter round
- a 4-letter round
- a 5-letter round
The player with the most points from the face-off round wins the game.
- "Andrea Jennifer Shubert". Retrieved 2011-12-02.
- "Just the FAQs: Acrophobia(TM)". 2002-11-25. Retrieved 2006-12-23.
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- "TAG: The Acronym Game". play140 INC. Retrieved 2011-12-02.
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- Glassner, Andrew S. (2004). Interactive storytelling: techniques for 21st century fiction. A K Peters, Ltd. p. 233. ISBN 978-1-56881-221-2.
- Beckshi, Peter (2000). "Instructor-based Section". In Piskurich, George M.; Beckschi, Peter; Hall, Brandon. The ASTD handbook of training design and delivery. McGraw-Hill Professional. p. 112. ISBN 978-0-07-134310-7.