What's different in the Steam versions?
While the Gold Box Companion has been around for years, SNEG's
Steam release of the Gold Box Classics, which also throws in the Eye of the Beholder series and a few other games, comes with updated versions of the Companion and the All-Seeing Eye preinstalled. These versions of the apps are paired with a launcher, which means they open automatically rather than needing to search for your savegame every time. The Companion also has a new option to change the games' font, and the launcher lets you easily reconfigure the window size to make room for the add-ons. On my 1440p monitor, running them at 1080p is a snug fit, with a little room at the top for my wallpaper to peep over.
I played the
GOG versions of these games a few years ago, downloading the Companion separately. The standalone version may have lacked the font-changing and needed more faff to get running (using GOG Galaxy's graphics mode setup I set the scaling engine to normal2x, then realized everything looked too wide and went back to tick the Keep Aspect Ratio box), but it did have some extra options. Namely, a character editor, save editor, teleporter, and more character classes so you can play paladins and rangers in Pool of Radiance rather than waiting for them to be added in Curse of the Azure Bonds, as well as an experimental monk class that was never part of the videogames.
The standalone Companion was a more powerful toolset, but I eventually ended up with corrupted saves both times I used it, so I can see why the Steam version has been streamlined to prevent you monkeying around as thoroughly with your files.
If you want to try some of those options in the Steam release, Joonas has uploaded a couple of
Steam extras. One download adds the character editor and an "explore map" button, another adds playable paladins and rangers to Pool of Radiance. A third bolts onto Forgotten Realms: Unlimited Adventures—a DIY scenario design kit released in 1993 that lets you create your own Gold Box adventures—making it easy to install modules constructed by fans.
A sizeable
fan community has been making modules for Unlimited Adventures over the years, so there are plenty to choose from, including adaptations of classic D&D scenarios like The Keep on the Borderlands as well as remakes of the earlier Gold Box games. If you can't bear to play Pool of Radiance without mouse controls and more than 16 colors, playing it inside Unlimited Adventures is another option. The fan versions also restore the theme music to it and Curse of the Azure Bonds, a
banging tune that's sadly been removed from both the Steam and GOG releases.