Browser based adventures are interactive fiction where the player can change the outcome of the story by his or her input. Games require a web browser.
Help investigators solve crimes in Oxford, Mississippi. Examine the evidence online. Participate in crime scene investigations by asking questions, offering observations and providing leads. Updated weekly since January 1995. http://www.crimescene.com/
You are a criminal investigator searching for a fugitive. Ends with an ad for fcfjobs, but it's still a fun game. Useful action words not mentioned in the help: examine, check, mail, fingerprint, tattoo. http://www.fugitivehunter.com
Interactive fiction resource for writers. Members may write a new open-ended story, or write an addition to an already active story. http://ourstory.freeservers.com/
Take a stroll through the gardens, get lost in the Hedge Maze, explore hundreds of strange rooms, but don't drown in the pond. http://www.castlearcana.com
Interactive writers may participate in on-going science fiction story, 1000 Years On Planet Earth or the romance parody, Birds of a Feather Smash Together. Stories have run continuously since June, 1, 1999. http://wvu.org/interactive-stories.shtml
Partake in this magical sci-fi game set in the greatest underwater civilization since Atlantis, Gorgolon. A Dan Zen game. http://www.danzen.com/gorgolon
A graphical adventure based on a virtual being that was created from the radio waves that surrounds the Earth. Includes an interactive game with each episode. http://kallisto.com/holo/hindex.html
Free online multiplayer game about four guys trying to win the favor of a girl named Tiffany. Includes a chat, forum, member profiles, and help. [Requires Shockwave.] http://www.gettiffany.com/