I made a list (mostly for my own inpiration) but maybe somone else finds it useful…
EDIT: Added XYZZY Awards for Best Game and winner in ParserComp.
Highest placed parser-game in IFComp, XYZZY Awards & ParserComp written for Z-machine or it successor (z3-z8, zblorb or gblorb)
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No. Year Place Name Author System Footnote
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1 1995 1 A Change in the Weather Andrew Plotkin Inform5 1
2 The Mind Electric Jason Dyer Inform5 1
2 1996 1 The Meteor, The Stone And A Long Glass Of Sherbet Graham Nelson Inform6
2 Tapestry Daniel Ravipinto Inform5
XYZZY Best Game So Far Andrew Plotkin Inform5
3 1997 1 The Edifice Lucian P. Smith Inform6
4 She's Got a Thing for a Spring Brent VanFossen Inform6
XYZZY Best Game I-0 Adam Cadre Inform6
4 1998 1 Photopia Adam Cadre Inform6
2 Muse: An Autumn Romance Christopher Huang Inform6
XYZZY Best Game Spider and Webb Andrew Plotkin Inform6
5 1999 1 Winter Wonderland Laura Knauth Inform6
2 For a Change Dan Schmidt Inform6
XYZZY Best Game Varicella Adam Cadre Inform6
6 2000 2 Metamorphoses Emily Short Inform6 2
3 Being Andrew Plotkin J. Robinson Wheeler Inform6
XYZZY Best Game Being Andrew Plotkin J. Robinson Wheeler Inform6
7 2001 1 All Roads Jon Ingold Inform6
2 Moments Out of Time L. Ross Raszewski Inform6
XYZZY Best Game All Roads Jon Ingold Inform6
8 2002 1 Earth and Sky 2: Another Earth, Another Sky Paul O'Brian Inform6
3 Photograph: A Portrait of Reflection Steve Evans Inform6
XYZZY Best Game Savoir-Faire Emily Short Inform6
9 2003 1 Slouching Towards Bedlam Star Foster and Daniel Ravipinto Inform6
2 Risorgimento Represso Michael J. Coyne Inform6
XYZZY Best Game Slouching Towards Bedlam Star Foster and Daniel Ravipinto Inform6
10 2004 1 Earth And Sky 3: Luminous Horizon Paul O'Brian Inform6
2 Blue Chairs Chris Klimas Inform6
XYZZY Best Game Blue Chairs Chris Klimas Inform6
11 2005 1 Vespers Jason Devlin Inform6
2 Beyond Roberto Grassi, Paolo Lucchesi and Alessandro Peretti Inform6 3
2 A New Life A O Muniz Inform6 3
XYZZY Best Game Vespers Jason Devlin Inform6
12 2006 1 Floatpoint Emily Short Inform7
2 The Primrose Path Nolan Bonvouloir Inform7
XYZZY Best Game The Elysium Enigma Eric Eve TADS 3 6
13 2007 1 Lost Pig Admiral Jota Inform7
2 An Act of Murder Christopher Huang Inform7
XYZZY Best Game Lost Pig Admiral Jota Inform7
14 2008 1 Violet Jeremy Freese Inform7
2 Nightfall Eric Eve Inform7
XYZZY Best Game Violet Jeremy Freese Inform7
15 2009 1 Rover's Day Out Jack Welch and Ben Collins-Sussman Inform7
2 Broken Legs Sarah Morayati Inform7
XYZZY Best Game Blue Lacuna Aaron A. Reed Inform7
16 2010 1 Aotearoa Matt Wigdahl Inform7
3 One Eye Open Caelyn Sandel (as Colin Sandel) and Carolyn VanEseltin Inform7
XYZZY Best Game Aotearoa Matt Wigdahl Inform7
17 2011 1 Taco Fiction Ryan Veeder Inform7
2 Six Wade Clarke Inform7
XYZZY Best Game Cryptozookeeper Robb Sherwin Hugo 7
18 2012 1 Andromeda Apocalypse Marco Innocenti Inform7
2 Eurydice Anonymous Inform7
XYZZY Best Game Counterfeit Monkey Emily Short Inform7
19 2013 1 Coloratura Lynnea Glasser Inform7
2 Robin & Orchid Ryan Veeder profile and Emily Boegheim Inform7
XYZZY Best Game Coloratura Lynnea Glasser Inform7
20 2014 1 Hunger Daemon Sean M. Shore Inform7
6 Fifteen Minutes Ade McT Inform7
XYZZY Best Game 80 Days inkle and Meg Jayanth inklewriter 8
21 2015 1 Brain Guzzlers from Beyond! Steph Cherrywell Inform7
2 Map Ade McT Inform7
XYZZY Best Game Birdland Brendan Patrick Hennessy Twine 9
22 2016 2 Color the Truth mathbrush Inform7 4
6 Pogoman GO! Jack Welch and Ben Collins-Sussman Inform7
XYZZY Best Game Superluminal Vagrant Twin C.E.J. Pacian Inform7
23 2017 1 The Wizard Sniffer Buster Hudson Inform7
2 Eat Me Chandler Groover Inform7
XYZZY Best Game The Wizard Sniffer Buster Hudson Inform7
24 2018 1 Alias 'The Magpie' J. J. Guest Inform7
7 Junior Arithmancer Mike Spivey Inform7
XYZZY Best Game Bogeyman Elizabeth Smyth Twine 10
25 2019 1 Zozzled Steph Cherrywell Inform7
4 Sugarlawn Mike Spivey Inform7
XYZZY Best Game Zozzled Steph Cherrywell Inform7 11
26 2020 1 The Impossible Bottle Linus Åkesson Dialog
3 Vain Empires Thomas Mack and Xavid Inform7
XYZZY Best Game Vampire: The Masquerade — Night Road Kyle Marquis ChoiceScript 12
27 2021 1 And Then You Come to a House Not Unlike the Previous One B.J. Best Inform7
2 Dr Horror's House of Terror Ade McT Inform7
XYZZY Best Game What Heart Heard Of, Ghost Guessed Amanda Walker Inform7
ParserComp 1 Grooverland Mathbrush Inform7
28 2022 5 Trouble in Sector 471 Arthur DiBianca Inform7 5
14 A Walk Around the Neighborhood Leo Weinreb Inform7
ParserComp 1 The Impossible Stairs Mathbrush Dialog
Footnotes
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1 The competition's very first run in 1995 split the entries into two categories: one for games written with Inform, and one for TADS.
Therefore, that year had two first-place winners, two second-place winners, and so on...
2 Winner 2000 was Kaged by Ian Finley (TADS 2).
3 2nd place 2005 was tied between two entries.
4 Winner 2016 was Detectiveland by Robin Johnson (Versificator 2).
5 Winner 2022 was The Grown-Up Detective Agency by Brendan Patrick Hennessy (Twine).
6 XYZZY Awards 2006 finalists for Best Game (except the winner) was, Floatpoint by Emily Short, Inform7
De Baron by Victor Gijsbers, Inform6
The Primrose Path by Nolan Bonvouloir, Inform
Tales of the Traveling Swordsman by Mike Snyder, Hugo
7 XYZZY Awards 2011 finalists for Best Game (except the winner) was, Mentula Macanus: Apocolocyntosis by One of the Bruces and Drunken Bastard, Inform7
Six by Wade Clarke, Inform7
Zombie Exodus by Jim Dattilo, Unknown. No link on IFDB.
8 XYZZY Awards 2014 finalists for Best Game (except the winner) was, Choice of Robots by Kevin Gold, ChoiceScript
Hadean Lands by Andrew Plotkin, Inform7
Hunger Daemon by Sean M. Shore, Inform7
With Those We Love Alive by Porpentine and Brenda Neotenomie, Twine
9 XYZZY Awards 2015 finalists for Best Game (except the winner) was, Brain Guzzlers from Beyond! by Steph Cherrywell, Inform7
Hollywood Visionary by Aaron A. Reed, ChoiceScript
Midnight. Swordfight. by Chandler Groover, Inform7
SPY INTRIGUE by furkle, Twine
10 XYZZY Awards 2018 finalists for Best Game (except the winner) was, Alias 'The Magpie', by J. J. Guest, Inform7
Cannery Vale by Hanon Ondricek, AXMA Story Maker
Cragne Manor by miscellaneous, Inform7
I.A.G. Alpha by Serhii Mozhaiskyi, INSTEAD
11 XYZZY Awards 2019 for Best Game was tied between Zozzled and Crème de la Crème by Hannah Powell-Smith, ChoiceScript
12 XYZZY Awards 2020 finalists for Best Game (except the winner) was, The Impossible Bottle by Linus Åkesson, Dialog
A Rope of Chalk by Ryan Veeder, Inform7
Tavern Crawler by Josh Labelle, Twine
Vain Empires by Thomas Mack and Xavid, Inform7