You know +Martin Ralya . He's the main man at Gnome Stew and Engine Publishing. Gnome Stew is a great system neutral blog and Engine Publishing has put out some amazing books to help any GM hone his skill and have an easier time behind the GM screen.
I bet you didn't know Martin is a sandboxer at heart loves the funkie dice. You know, the dice you might use in the DCC RPG or with the D30 releases from New Big Dragon Games. Actually, Martin's Hexmancer Procedural Hex Generation System should be in every OSR DM's book of tricks.
Want to peek at it?
That's the first of 2 pages. Yep, it fits on 2 sides of a single sheet of paper.
You can grab Hexmancer at Martin's website: MartinRayla.com
You can also see a nice walkthrough of Hexmancer in operation.
This would have been up sooner, but your Tavern Keeper has been under the weather this past week :(