Anonymous
From IFWiki
Here are some games where the game is stated to have been written by "Anonymous":
- 21 Points (Anonymous; 2003; TADS 2).
- Being Steve (Anonymous; 2006; Inform 7; Z-code).
- Blue Head Yurt (Anonymous; 1999; TADS 2).
- Color of Milk Coffee (Anonymous; 2012; Inform 7, ADRIFT 5; Z-code).
- Death Waif (Anonymous; 2000; TADS 2).
- Dig Dug (Anonymous; 2001; TADS 2).
- Diorama (Anonymous; 1999; TADS 2).
- Entrancing Sin (Anonymous; 2010; TADS 3).
- Eurydice (Anonymous; 2012; Inform 7; Z-code).
- Freedom (Anonymous; 2008; Inform 6; Z-code).
- Freedom (Anonymous; 2000; TADS 2).
- Glacial Rift of the Dick Cavett (Anonymous; 2002; TADS 2).
- I-0 (Anonymous; c. 1997; Inform 6; Z-code).
- I-0 (Spanish translation) (Anonymous; translators: Antonio Márquez Marín as "Lumpi", Miguel Villaverde Rodal as "Sirrus", José Luis Diaz as "Zak McKracken"; c. 2000; Inform 6; Z-code; Spanish).
- Inner Space (anonymous; publisher: Potter Programs; 1985; BBC BASIC; BBC Micro, Electron).
- Invaders (Anonymous; 2001; Inform 6; Z-code).
- Iraqi Invasion (Anonymous; 2008; Inform 7; Z-code).
- Jeenin Tonn-nx (Anonymous; 2001; TADS 2).
- Kiss Chase (Anonymous; 2002; TADS 2).
- Pinched (Anonymous; 2013; Inform 7; Glulx).
- Rivkin (Anonymous; 2002; TADS 2).
- Space Invaders! (Anonymous; 2001; TADS 2).
- Stairs (Anonymous; 2000; TADS 2).
- Tall Tales in the Big Easy (Anonymous; 2001; TADS 2).
- The Carthage Corn Maze (Anonymous; 2001; TADS 2).
- The Five Tutors (Anonymous; 2001; TADS 2).
- The Hippo and the Flute (Anonymous; 2002; TADS 2).
- The Hose (Anonymous; 2000; TADS 2).
- The Lode Runner (Anonymous; 2001; Inform 6; Z-code).
- The Nemean Lion (Anonymous; 2008; Inform 6; Z-code).
- The Ship of Whimsy (Anonymous; 2011; Inform 7; Z-code).
- The Suffering Supplicant (Anonymous; 2002; TADS 2).
- This Is The Toaster (Anonymous; 2000; TADS 2).
- Underground Compound (Anonymous; 2002; TADS 2).
- Untitled (apocalypse) (Anonymous; 1999; TADS 2).
- Untitled (onion2.gam) (Anonymous; 1999; TADS 2).
- Why does my New Year's Eve always crash and burn? (Anonymous; 2001; TADS 2).
- Zumpf and Fumping (Anonymous; 2001; TADS 2).
Here are games which do not have authors listed on IFWiki:
- Adrift (Anonymous; c. 2025; Inform 6, PunyInform; Z-code).
- Breaking the Code (Anonymous; 2000; Inform 6; Z-code).
- Buffy the Vampire Slayer: Call of the Siren (Anonymous; c. 2002; Windows).
- Citadelle (Anonymous; publisher: Loriciels; c. 1984; BASIC; Oric, Philips VG5000, Amstrad CPC; French).
- Dull Grey (Anonymous; publisher: Provodnik Games; 2019; JavaScript; Browser; English, Russian).
- Eragon (Anonymous; publisher: Random House; 2005; Inform 6; Z-code).
- Façade (Anonymous; Date unknown; ABL AI, Java; Windows, macOS).
- Halfling Dale (Anonymous; Date unknown).
- L'enlèvement (Anonymous; publisher: C.I.L.; 1984; Apple II; French).
- La bête du Gévaudan (Anonymous; publisher: C.I.L.; c. 1985; Apple II; French).
- Mean Streets (Anonymous; publisher: Bad Dog Studios; 2015; TADS 2).
- Mouse Quest Chapter 1 - The Arrival of Winter (Anonymous; 2016; Inform 7; Glulx).
- Return to the Castle (Anonymous; 2020; Inform 6; Z-code).
- Super Pervert Action Crisis (Anonymous; Date unknown; ADRIFT, Inform 7; ADRIFT 4, Glulx).
- The Awakening (Anonymous; publisher: PKProStudio; 2010; Inform 7; Z-code).
- The Forbidden Lands, Book I: The City of Falchon (Anonymous; 1993; MS-DOS).
- The Gate (Anonymous; 2004; TADS 2).
- Thy Dungeonman 3: Behold Thy Graphics!! (Anonymous; 2006; Flash).
- Uncyclopedia Zork (Anonymous; Date unknown).
- Zork (Anonymous; Date unknown).