I haven't written any apps for RT-11 since 1989,
but I have always
wanted to fire up PLANETFALL or ZORK I on it, since long, long ago,
before I owned a machine that could run Zork, I saw Planetfall on 8"
floppy, hanging up in the Digital store in downtown Columbus. It's a
bit of a silly play-time project, considering how many machines I now
own that run a Z-machine, but I've never gotten around to running a
Z-machine on a PDP-11. I know it's not hard; I just haven't whittled
down the project pile to that depth yet.
You do realize that a Z-machine exists for RT-11, don't you? Johnny wrote
it a few years back (~2001 probably), Megan ported it, and some work was
done a couple years ago to get the latest version building on RT-11 again.
Zane