Have to say I'm rather surprised Supaplex (released: 1991, current number of votes: 112) is a) eligible due to the low number of votes and b) not here yet. With how addictive it was and the sort of, well, something of a craze around it, at least around here, I'd be tempted to think that little red Murphy chomping his way through hardware in search of infotrons while dodging zonks and snik snaks, avoiding bugs when they trigger and using floppies to blast paths through would have a significant nostalgia factor for most of those who played games in the early and maybe mid-90s. And there are a ton of additional levels created by people, utilities, some clones too. The page on the developer's site has a last listed update in 2010, when a DOSBox-ed download was added.
Granted, it is freeware, and that installer added in 2010 probably makes it no longer need the GOG treatment to just work out of the box, maybe, but having it tested here and maybe also with bundled additional levels and utilities may even have some value for some people.
Wishlist entry Mobygames page Developer page Alternately though, Igor - The Time Machine (released: 2002, NO existing wishlist entry;
MobyGames page,
Developer page), which is supposedly modernized (and even harder...) Supaplex is a commercial release and could be added with Supaplex and related stuff as bonuses. With the last entry on that page being from 2009, not even sure if it's actually still sold, and either way seems like the download version misses things that can only be obtained by having an actual CD shipped, so would be some value in having it all available as a download somewhere. But assume that those interested would be interested in the bundled Supaplex really :p
Either way, seems to me like it'd really belong here. And hey, was good enough to get
a commercial iOS release in 2011, and
a couple more, with new levels later.