Psikerlord#
Explorer
What is a good sandbox size for a "medium"/regional area in Forgotten Realms (but not a hexcrawl)
I'd go with 1 month x 1 month.
I find travel times more usable than distances![]()
400 miles means two weeks of hard travel to get from end to end. That's a decent size. With something interesting every couple days you can fill a campaign.