The Absolute Worst IF Game in History, by Dean Menezes (2008)
(29 ratings, σ=0.18246560765962694)

The Lift by Colin Capurso 2012 (25 ratings, σ=0.19595917942265423)

Toiletworld by Chet Rocketfrak 2016 (20 ratings, σ=0.21794494717703367)

Vestiges by Josephine Wynter 2011 (18 ratings, σ=0.31426968052735443)

Lunar Base 1 by Michael Phipps 2012 (15 ratings, σ=0.33993463423951903)

The Eleusinian Miseries by Mike Russo 2020 (24 ratings, σ=0.4061164310337068)

IFDB Spelunking by Joey Jones 2012 (21 ratings, σ=0.4259177099999599)

Counterfeit Monkey by Emily Short 2012 (186 ratings, σ=0.43054413323701995)

A Quiet Evening at Home by Anonymous 2010 (20 ratings, σ=0.4330127018922193)

9Lives, by Bill Balistreri, Hal Hinderliter, Sean Klabough, Luke Michalski, Morgan Sokol (2013)
(19 ratings, σ=0.44034738238635557)

Reference and Representation: An Approach to First-Order Semantics by Ryan Veeder 2016 (32 ratings, σ=0.4408354993645589)

Whitefield Academy of Witchcraft by Steph Cherrywell 2014 (15 ratings, σ=0.4422166387140533)

Jane, by Joseph Grzesiak (2002)
(15 ratings, σ=0.4422166387140533)

Starry Seeksorrow by Caleb Wilson (as Ayla Rose) 2015 (18 ratings, σ=0.4581228472908512)

Captain Graybeard's Plunder by Julian Mortimer Smith 2020 (18 ratings, σ=0.4581228472908512)

The Lighthouse, by Eric Hickman and Nathan Chung (2008)
(19 ratings, σ=0.46482951928041294)

Superluminal Vagrant Twin by C.E.J. Pacian 2016 (95 ratings, σ=0.464829519280413)

A Rope of Chalk by Ryan Veeder 2020 (26 ratings, σ=0.48192169562083337)

Sorcery! 2 by Steve Jackson and inkle 2013 (19 ratings, σ=0.48237638894271995)