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>SEDUCE THE SANDWICH

A webcomic that, unlike most webcomics that have a set story and swipe reader speculation periodically, takes a lot of reader input. Frequently, the author will take so much reader input that nearly the entire webcomic is made of user suggestions. As such, they always have some way to put in suggestions, whether it's a designated forum where you can post in a suggestion box, comment in a comment box, a Shout Box, or an email address you can send suggestions to. In fact, many of these comics had their origins in forum threads, where the update panels are in-line with the discussion of said panels and the suggestions.

In many cases (nearly all since the Trope Codifier MS Paint Adventures), the webcomic will be presented as if it were a log of an Interactive Fiction game (with pictures). Because commands are parsed by a human and only one (or a very select few) command paths are actually used, the story usually ends up far more complex than is possible to program into a game (mostly because the Combinatorial Explosion is much smaller and can thus be handled manually). Due to the sort of people who make these comics, these comics also frequently spoof such things as Adventure Games, Simulation Games, Puzzle Games, Roleplaying Games, or Turn-Based Strategy games.

Tropes often used include

Ascended Fanon: and nothing but. Collectively, these comics may well be the best example.
- Beyond direct suggestions, authors often take direction of the future updates by canonizing fan speculation.
Cerebus Syndrome: Specifically, once the Ontological Mystery is slightly less of a mystery, the author will often reveal a backstory for the world and the character. This generally tilts the comic away from silly hijinks to plot-driven story.
Foregone Conclusion: Homestuck has proven that as any interactive comic becomes popular enough, it begins to defy the medium. The creator of Homestuck has said that before ultimately closing the suggestion boxes, there were so many suggestions that he could pick any direction he wanted, subverting the idea of the interactivity.
- Homestuck is also an interesting case study in that the author eventually got incredibly fed up by endless streams of countless moronic suggestions; something usually considered a strength of this genre.
  - Even more interesting is that without suggestions, fans still affect the comic in small ways as community jokes and theories often appear in the comics or have nods to them. Also, the author himself said "90% of 'calling it' is actually influencing it in disguise."
Ontological Mystery: Often of the You Wake Up in a Room kind. Fortunately or unfortunately, this type of beginning to a story is incredibly easy to pull off.
Present Tense Narrative
Second-Person Narration
Schrödinger's Gun
Genre Savvy or Genre Blindness: Depending on the quality of reader suggestions, the protagonist in question can be a bumbling idiot with no brains or an incredibly smart ninja who knows all the trappings of his fiction, or anything in between.

Examples:

The genre really arose out of Interactive Fiction and joking around on forums (both Ruby Quest and MSPA started on forums), so pinning down the Ur-Example is probably impossible.
Ruby Quest and all the other /tg/ quests are the Trope Makers (though Ruby Quest itself is younger than the Trope Codifier).
- John Quest, Gaiden Game-esque Self-Parody of Ruby by the same author.
- Nan Quest, Ruby Quest's Spiritual Sequel.
- Dive Quest, a fantasy roleplay and possible prequel to Ruby Quest.
Enemy Quest is a Romance/Science-Fiction interactive comic in the same vein as Ruby Quest and Nan Quest. Created by Bromeliad, It follows the story of one Zack Nguyen as he's hired by a government agency to take place in a cultural exchange program with Earth's newest residents: the Visitors, a collection of four alien races from another dimension.
Old Republic Paint Adventures is an interactive comic (loosely) set in the Star Wars universe.
MS Paint Adventures is the Trope Codifier.
- This has changed a bit since the site was started. While completed series Problem Sleuth is still an excellent example of the genre, the current series Homestuck has long since closed its submission boxes and is for all practical purposes a "normal" webcomic styled like an interactive comic. The audience still has a significant influence on the story, though, as author Andrew Hussie enjoys reading fan theories and employing the ones he likes into the story.
In Koan of the Day, the guru is visited by the Goddess, which introduces a complicated puzzle game that few people have solved.
Voices (which was originally an MSPA Forum Adventure before getting its own site.)
Little Robot Big Scary World
Dorf Quest
Silent Hill: Promise
Aetheria Epics
Touhou Nekokayou's Create.swf Adventures
Epicsplosion: Tripp Rougestar's Space-filled Adventure, whose story depends on which of several paths you take, something that Andrew Hussie tried with Bard Quest.
Death By Choice, a detective comic, is a Choose Your Own Adventure comic where the reader plays the role of a detective.
Wicked Awesome Adventure
Prequel (which was also a MSPA Forum Adventure before getting its own site.)
Demon Thesis, a mix of interactive comic and java based tactical game by Chris Doucette, who also brought us The Last Days Of FOXHOUND.
Gengame
Morph E, is like a visual novel, with animations and Ace Attorney styled investigation sequences.
Deep Rise
Omnitopia The Playground where all the main characters are people from the Gitpg forums who have given permission to appear in the comic.
Bandit's Quest, stated to have been inspired by MSPA, originated on tumblr.
City Of The Dead
Lunar Hill
Tiny Cat People
Evil Plan switched over to a MSPA style for April Fools' Day 2012, and took suggestions from the readers. The comic was updated nearly a hundred times that day, with several of the images being animated .gifs.
Pants Seat Carpet Ride, which is told from the third person and contains no images, was inspired by MSPA.
Drowtales, is based around this to varying degrees for all of its comics besides it's primary one, Moonless Age.
Mystic Empyrean Rebuild, is entirely based around user suggestions either on the forums or every other week to determine the course of the primary narrative.
StableQuest
Awful Hospital
- Strange School (fancomic)
Weenie Licked
Be Calm runs on reader commands, but the characters are fully aware that they are being interacted with, and often break the fourth wall to address the "voices" giving them prompts.
Baskets of Guts
Save the Princess
Transverse
Way Of Wushu
Downplayed in Unichat, which breaks from the genre's Interactive Fiction roots, instead allowing readers to interact with the narrative through the Unichat platform itself.
Blood Is Mine
RWBY Quest