If you're looking for a specific kind of IF, you can create a poll to ask other people for recommendations.
Games / stories with an eighteenth-century setting
by chux - 4 votes for 3 games, last vote on May 9, 2016; created on May 19, 2015
"That is, I'm specifically interested in a European / Western version of the 18th-C.: Age of Enlightenment; Great Awakening / Puritanism; Colonial and Revolutionary USA; Louis XIV to French Revolution; hoop petticoats, justacorps, and..."
The game(s) that changed your mind about Twine
by MathBrush - 49 votes for 25 games, last vote on December 16, 2020; created on May 18, 2015
"I've seen many people discuss their feelings for Twine. Many of them say that they didn't think it was a 'real' platform at first, but then certain games changed them (see, for instance, the commentary in "IF is Dead. Long Live IF") For..."
Games with interesting content that unlocks after beating the game
by MathBrush - 7 votes for 6 games, last vote on June 29, 2016; created on May 6, 2015
"After playing Tenth Plague, I was interested when I saw the game had a commentary mode. I was looking for similar "extra content" in other games."
by Floating Info - 18 votes for 14 games, last vote on May 25, 2017; created on April 30, 2015
"What are some games that start off with the PC in a regular situation but turn into something different? This would include a regular person finding a portal to a fantasy world, or a regular person already in a fantasy world abruptly..."
Games with amusing deaths
by Andrew Schultz - 26 votes for 19 games, last vote on June 18, 2020; created on April 7, 2015
"Lots of games have one amusing death, but what games best take the concept and run with it? These deaths could be nudges on messing something up, or even better, or even a nice reward for a reader who is playing attention and notices a..."
For Your Consideration: Games from 2014 that should be nominated for the XYZZY Awards
by Molly - 57 votes for 43 games, last vote on April 12, 2015; created on March 15, 2015
"There were a lot of great games released in the past year, and now that the XYZZYs are coming up, it seems like a very good idea to take a poll of all the games from last year people would like to see nominated. The management has asked..."
by matt w (Matt Weiner) - 11 votes for 9 games, last vote on May 25, 2017; created on March 13, 2015
"Going along with the Mother-Daughter poll, any games that touch on father-son relationships? Again, not necessarily the center of the work."
by matt w (Matt Weiner) - 41 votes for 27 games, last vote on November 30, 2020; created on March 13, 2015
"What are some IF works that involve a relationship between a mother and a daughter? Not necessarily as the center of the work, but as something that impinges on it at all."
NPCs Made Easy
by Sam Kabo Ashwell - 33 votes for 19 games, last vote on January 22, 2019; created on February 9, 2015
"A list of games which notably use elision, sleight-of-hand, cleverly framed premises, or other fiendish implementor tricks in order to include significant NPCs in the story without having to implement them in deep, complicated detail...."
Give me a second chance!
by verityvirtue - 33 votes for 19 games, last vote on December 30, 2020; created on February 1, 2015
"I'm looking for games which work like Bigger Than You Think - where dying isn't the end, where you're given second chances, where your second chances give you gear or skills or knowledge that you need to know to win the game."
Games Theoretically but not Practically Beatable on First Attempt
by Floating Info - 18 votes for 15 games, last vote on January 5, 2018; created on January 25, 2015
"I'm looking for a very specific level of difficulty: a game where you theoretically could beat it on your first attempt, but you won't. At some point in the game you'll fail, but that point may vary from person to person, and when you..."
Non-Infocom games of commercial era worth playing
by tekket - 83 votes for 34 games, last vote on May 5, 2021; created on January 6, 2015
"What commercial games published between 1980-1993 other than those by Infocom do you think are worth playing? "
Games with non-standard directions
by Andrew Schultz - 23 votes for 17 games, last vote on May 25, 2017; created on December 28, 2014
"I'm wondering about games (primarily parser) with weird directions beyond NW/SW/SE/NE, up, down or inside/outside. I like the example in the Inform docs (Charles S. Roberts) about hexagonal directions but have no clue how to go about..."
by Anya Johanna DeNiro - 32 votes for 19 games, last vote on May 1, 2018; created on November 17, 2014
"Looking for games that really explore verticality, which go up (way up) in their setting. Human-made structures in particular: towers, skyscrapers, radio antennae. Games that figuratively can make you feel dizzy, particularly after a..."
Should Glulx IF be described as 'for all systems'?
by Sheogorath - No votes; created on November 13, 2014
"Several years ago, the only systems you could put a 'terp on were PC, Mac, and Linux computers, but with the advent of the smartphone, 'all systems' has grown by 100%, if not more. That's why I believe that only TADS3.1 (without WebUI)..."
Fun Halloween Games!
by bluevelvetwings - 12 votes for 7 games, last vote on October 11, 2020; created on October 14, 2014
"There are already polls for good horror games, and there are quite a few good ones on this site. But I'm looking for ones that fit the side of "spooky" but not "terrifying" - things that make you giggle nervously at the scares, but don't..."
First IF that you have ever played
by BlitzWithGuns - 61 votes for 34 games, last vote on June 22, 2020; created on August 23, 2014
"What is the first IF that you have ever played? The game that made you love the concept of IF?"
Games with character creators/creation
by cynical11 - 11 votes for 10 games, last vote on May 20, 2019; created on August 3, 2014
"Basically, any game that features any kind of character creation system; but, the more in-depth, the better."
Games You Return To
by Ghalev - 30 votes for 19 games, last vote on December 16, 2020; created on July 27, 2014
"What games do you find yourself revisiting from time to time, games that have proven to be a kind of comfort-food of text adventuring, the warm old socks of parser and puzzle, the socks-full-of-comfort-food of overextended metaphor? What..."
IF with a sense of wonder
by blue/green - 48 votes for 23 games, last vote on April 11, 2020; created on July 17, 2014
"What interactive fiction would you recommend that evokes a sense of wonder? These could be games that capture wonder or beauty in ordinary things, perhaps by viewing the world through the eyes of a child. Or they could be games that..."