For folks who are interested in reading the context of my work on sandbox campaigns, as opposed to excerpts, here are some links. Feel free to ask questions.
How to Make a Fantasy Sandbox
Note that at the bottom of the post are link to other post expanding out each step.
All my Bat in the Attic post on Sandbox Fantasy
I recommend using the next button and then scroll back.
Some of my favorites
My Axioms of Sandbox Campaigns
Talks about the Initial Context, World in Motion, and the Bag of Stuff. The table of contents that structures how I handle sandbox campaigns.
Gaming Ballistic - Majestic Wilderlands Campaign Log
A detailed campaign log of Douglas Cole of Gaming Ballistic experience as a player in the Majestic Wilderlands using the D&D 5e rules. Scroll until you get to the first post and read in reverse.
The World Outside of the Dungeon
I extracted the chapter on campaigns out of my Basic Rules on the Majestic Fantasy RPG and made it a free download.
World in Motion Breathing Life into your City-State
Handling trips in a city.
Mini-Binders
Some tips on organization.
Thoughts on Metagaming
The logistics of tabletop roleplaying campaigns and it impact on sandbox campaigns.
How Much Detail at the Start of the Campaign?
Sandbox campaigns only works if players have the information to make meaningful choices.
The one where I got interviewed by Brendan Davis
Brendan and I talk about several topics including sandbox campaigns. The link is to the podcast not my blog post.
The Rise and Fall of Roleplaying Campaigns.
Sandbox campaigns are one technique among many. This post discusses some of the issues they can have.
Sandbox Campaigns and the Bag of Stuff Redux
Comments and thoughts fleshing out the Bag of Stuff used to handle unexpected decisions in a way consistent with the setting in the Sandbox Campaign.
A Sandbox Campaign, the Nomar Campaign
A log of a Sandbox Campaigns. A practical example of what happens during a sandbox campaign.
Part 1
Part 2
Sorry for not writing Part 3. Basically, what happened is that the players overcame challenges in building their inn, the two most important of which were a rival noble in Oxcross (P) and clearing out a supernatural power in the Plain of Cairns (O).
The Majestic Wilderlands as Persistent Campaign
Comments and thoughts over using a setting over multiple campaigns and with multiple groups at the same time.
Part 1
Part 2
Part 3
Knowing what in the Book
Comments on player knowledge and how to keep things fresh when sticking to a single setting spanning multiple campaigns.
How to Manage a Sandbox Campaign, the Bag of Stuff
More comments on the Bag of Stuff aspect of sandbox campaigns.
How to Manage a Sandbox Campaign, the pre-game
Later, I call this the Initial Context. The term pre-game comes from the campaign section of the 1983 edition of Harn
How to Manage a Sandbox Campaign
Thoughts on Managing a Sandbox Campaign.
Ending the Sandbox
Comments on how Sandbox Campaign end.
Culture in Sandbox Campaigns.
Sandbox Campaigns has been criticized for PCs being amoral and largely motivated by instrumental concerns. But when culture and religion are an important part of the setting that is not an issue. The following are two posts discussing the role that culture plays in Sandbox Campaigns.
Helping your Players roleplay a culture
Cultural Motivations
Plot in your Sandbox Campaign
Most hobbyists think of campaigns in terms of story and story arcs. This post talks about how I view it as plots and plot arc and the importance of considering them as a plan of action that will be altered by the choices of the players not a script.
A concise definition of a sandbox campaign/setting.
An early post that was made prior to my Axioms post organizing how I think about Sandbox Campaign.
Using history in your game
Comments on the role that the setting's history plays in Sandbox campaigns, emphasizing that the only relevant details are those that impact how characters are roleplayed in the present day of the setting.
World in Motion
An early post talking about World in Motion
Musing on Sandbox Campaigns.
A post where I comment on a
2010 thread here on Enworld where folks were slagging each other about sandbox campaigns
The Sandbox and Player Character Backgrounds
An important element of establishing a good initial context is fleshing out the PC's background. Doesn't have to elaborate.
Some structure for your Sandbox Campaigns.
Comments on plot and sandbox campaign and how the sandbox referee works creatively and has fun.
Simultaneous Campaigns.
Comments on running multiple groups at the same time in the same setting but in different campaigns.
Some Sandbox campaigning advice
How having an initial context where the characters are under orders as part of a group can help novices get comfortable with Sandbox Campaign. For an actual play example, look at the Nomar Campaign log above.
A Definition of Sandbox Gaming
A even earlier post outline what Sandbox campaigns also touching on the history of the term and how it entered the hobby.
MMORPGS vs. tabletop RPGs
Comments on types of players found in MMORPGs and how they relate to tabletop RPGs with comments on sandbox campaigns.
Sandpits to watch out for in your Sandbox
About the influence of locations in Sandbox campaign.
You can't stop the sand from running out of the box.
Comment on some of the issues that can arise in sandbox campaign including an unflattening story about when the players had to
Hunt a Cow that happened on my watch as referee.
A Sandbox Table
A actual play report when player choices intersects the fact that the setting has a life of it own in sandbox campaigns.
Things to consider for your Religion
While I omitted most of my worldbuilding articles religion is an important component of how characters are roleplayed.
Other Knobs to play with
Comments on the World in Motion aspect of Sandbox Campaigns when I discussed that James M. and Mike Mearls said over on Grognardia.
Personal Notes
A pair of posts on the origins what I take an interest in Sandbox Campaigns.
Origin of my Sandbox Fantasy
Sandbox Fantasy