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In the Heart of the Unknown - Procedural Hex Crawling Engine
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In the Heart of the Unknown - Procedural Hex Crawling Engine

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In the Heart of the Unknown – contains procedural Encounter, Terrain and Weather Engines for Wilderness Hex Crawling.

It is in a similar vein as ‘In the Heart of the Sea’, which is a procedural High Seas ‘Hex Crawl’.

Basically, in In the Heart of the Unknown there are three 'game engines' in the form of Hex Flowers. One engine drives navigation and encounters. The other two are related to terrain and weather conditions.

Each time you enter a new HEX, you procedurally determine what is in the new HEX starting from the last HEX result. So, Hex Flowers are sort of like a random table but with a memory

More on Hex Flowers
You can read more about Hex Flower Game Engines here:

and on my Blog:

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I'm very happy for you to pay nothing for this product; and anything given to me will only be frittered away on RPG-related wares anyway. That said, even a nominal sum like 50 cents seems to bump this thing up the DriveThru charts and encourages me to make more things like this!

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Reviews (1)
Discussions (1)
Customer avatar
Roland E May 28, 2020 8:38 pm UTC

First of all thanks for those little flowers smelling the parfume of adventure.

Should I consider each HF to be independent, both in terms of temporality and dice roll?
i.e. I roll for each HF separately and one HF could see multiple rolls while the other one roll each.

This leads to the issue, I face actually, how am I supposed to use the rivers and roads. Should I consider that the PCs stay on the road/river as long as they please and for each weather roll, I roll to see if I have a double?

I know, reading your blog and your "overview and thought" document, that I should/could/must take some liberty with what you present in your documents, but I want to, first, understand your rules' concept.


Customer avatar
Goblins H May 28, 2020 9:37 pm UTC
Hi Roland

Thanks for your comment and I’m glad you like these Hex Flowers.

The way I intended this to work (but as you note people can use these as they see fit) is that each “turn” the user rolls on each of the three HFs.

So 2D6 for encounters, a second set of 2D6 for weather, and a third set of 2D6 for terrain each "turn".

Now, if you think weather is too changeable under this set up, then you could roll once say every three “turns”. Same could apply to terrain, where you could roll say every other "turn". Personally, I think it’s fun to roll on each of the three HFs every time. A “turn” being a unit of travel worthy of a change in circumstances i.e. which warrants a new roll.

Roads and rivers are interesting. As you can imagine, the tension I faced when making this Game Engine was trying to get the whole concept on just one page, but also having enough info for people to figure out how to use it. Rivers...See more
Customer avatar
Roland E June 01, 2020 3:20 pm UTC
Thanks for all those precisions.

If I may suggest something. Maybe you should move the Encounter list to a second page, that way you have more space for rules and that also leave more space for the GM to add notes and information for each encounter in the list. I think it is a win-win situation, more space for the rules, more space for encounter descriptions.

Customer avatar
Goblins H June 01, 2020 4:15 pm UTC
Thanks for this.

Maybe at least I could make a 1-page and a 2-page version of this to suit different preferences.

I'm also thinking of bringing out a booklet on 'In the Heart of the X', i.e. bringing together these various different Hex Flowers I’ve made.

This could be the time to make this kind of edit – the HFs on one page, and the text on the facing page?
Customer avatar
Roland E June 06, 2020 9:03 am UTC
That's an interesting news.
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File Last Updated:
October 27, 2019
This title was added to our catalog on October 25, 2019.