Whizbang Dustyboots
Gnometown Hero
I'd definitely prefer a AD&D-inspired game to Shadowdark. Sadly, the OSR is stuck on B/X.
Beyond the Wall and Other Adventures, a zero-prep OSR roleplaying game you can play in an afternoon
Beyond the Wall and Other Adventures is a zero-prep roleplaying game you can play in an afternoon
www.flatlandgames.com
These are AD&D-derived games (although they use playbooks by default to build characters, rather than traditional character creation, although you end up with very recognizable AD&D-adjacent characters) and they each have fantastic additional systems added, particularly in the create-an-adventure-on-the-fly space.
If Flatland ever wanted to go for a more deluxe treatment via Kickstarter, I firmly believe that Beyond the Wall, in particular, would be a major OSR player. As it is, it's beloved.
Note that each game has its own tone. For a sword and sorcery tone, go with Through Sunken Lands, although you can use the modules from all three lines.