Skip to main content

How to Play Dungeons & Dragons Solo - Part 5 - Random Wilderness Rules, a Solo DnD Tutorial

Welcome to my blog 'Solo Dungeon Crawler', addressing all your solo dungeon crawling needs, in particular, showing you how to play Dungeons and Dragons solo, as a one person unit, without a Dungeon Master, completely by yourself. My aim is to make this experience as fun and immersive as possible.

In previous articles, I covered the basics of choosing a rule system, creating a character, mapping out a random dungeon on the go using graph paper, how to handle combat scenarios and how to track time. I'm going to build further on this simple system by introducing a means of adventuring outside of the dungeon, in the wilderness. Let's get going.

How to Play Dungeons & Dragons - Part 5 - Random Wilderness Rules, a Solo DnD Tutorial

To build wilderness from scratch I need to find a random way of generating it, which makes logical sense. Luckily, I already know of such a method. If I cast my attention back to 1979, Gary Gygax and Mike Carr created the Advanced Dungeons and Dragons Dungeon Master's Guide. On the back pages there is an appendix section, and Appendix B gives a great example of how to generate random wilderness terrain.

The Method

The random terrain determination system works with ease for a one space equals one mile or larger scale. When using it, common sense must prevail. As the party (or single character) enters each space a d20 is rolled and a corresponding terrain type is chosen from a table, which is based on the terrain type the party or player is currently on.

To do this, I basically read down the column until I find the line where the random number generated falls and simply move left to determine the terrain that predominates the new space. If a pond is indicated, the terrain it is in is the same as that of the previous space. If a depression is indicated, I must decide as to it's nature and extent. The terrain it is in must be the same as the previous space. The depression in a marsh is some form of lake.

A terrain guide is included in the appendix to help determine specific types of terrain. i.e. A plain can be a tundra, steppe, savannah, prairie, heath, moor, downs or meadow.

Random Terrain Generation

To generate random terrain I start by copying the information outlined in Appendix B of the AD&D Dungeon Master's Guide into my notebook. A PDF version of the table (which I have developed further) is available here for your own use: Solo Dungeon Crawler Wilderness Generator

Let's imagine I am starting on a plain, I roll the dice and get a 12, which indicates that the terrain type is scrub. If I'm in the scrub and want to find out what's in the next hex I'm travelling to, I roll a d20 again and lookup the scrub table. I roll a 16, which indicates the terrain type for the next hex is hills.

There are three asterixis included in the terrain generator. These explain that 1 in 10 forests also include hills, 1 in 10 hills also include forest and 1 in 20 mountains have a pass which leads through the range.

I also copy the terrain guide into my notebook (this is also included in the Solo Dungeon Crawler Wilderness Generator). Depending on which terrain type I am in, this terrain guide will be useful. Things like the surrounding terrain, the predominant climate and my own imagination will dictate whether a forest is a simple woodland, or a dense jungle, or whether the hills are bluffs or sandy dunes. The guide will help to differentiate things a little bit and help prevent the hex map from becoming too uniform.

An Example

To show you how this works in the context of a solo DnD campaign I'm going to provide an example.

I will start by making a terrain key in my notebook (this is included in the Solo Dungeon Crawler Wilderness Generator), so that as I map the wilderness I know what each hex represents.

The way you choose to mark your terrain on your own hex maps is entirely up to you. The terrain key I made isn't exhaustive but should give you an idea of roughly how to mark the hex map appropriately. I've tried to split mine into the categories listed in the Terrain Guide. I would recommend the use of coloured pencils to ensure the different types of terrain really stand out.

Next I consult the Random Wilderness Generation Table (I've added some numbers down the side so I can roll a d20 to determine the type of terrain I will start with). Just like the random dungeon generation method, I recommend starting in the centre of the hex map.

I will roll a d20 to determine the terrain to start with. I roll a 20, which indicates a depression. I will lookup depression on the Terrain Key (it's a zig sag shape), so I will draw the zigzag shape on my hex map. I will assume that the depression will be in a plain, I could also roll again on the table to see which type of terrain the depression is in if I wanted to. This depression could be a gorge a rift, a valley or a canyon. I roll a d4 to determine this at random and the die indicates the depression is a rift, which is a large crack or split across the land, perhaps this could have been caused by a mighty creature or it's the effects of a powerful spell which was cast in the distant past.

Let's say I want my party to travel north from the rift and I want to find out what the party comes across next. I will roll again on the Random Wilderness Terrain table. The rift is more of a feature than a terrain type so I will roll again on the left most part of the table to determine the initial terrain type in the hex to the north. I roll a 7, which means the terrain type in the north hex is rough. I glance at my Terrain Key again and I can see the symbol to represent rough (some diagonal slashes). The party travel north from the rift in a plain into a rough.

I want my party to move northeast now, so I will roll on the Random Wilderness Table in the 'Rough' column next. I roll a 6, and 6 to 8 indicates that the terrain to the northeast is still rough terrain.

I want my party to move south next. I roll 11 on my d20, lookup the result on the Rough Column and move left to determine the terrain to the south. 11 to 15 indicates hills. The terrain type of hills has an asterix next to it, which states that "1 in 10 also includes forest". I roll a d10 (a roll of 1 would indicate that the hills are in a forest), but I get a 5, which means the hills are not in a forest. The Terrain Key depicts hills as little bumps, so I draw them on my hex map to mark the hills.

That's how the wilderness is generally generated. This procedure allows me to develop quite a detailed map of the wilderness.

Getting Lost and Encounters

  • Every hex represents six miles.
  • Check for an encounter each hex by rolling 1d6:
  • Plain:1 = encounter
  • Rough, desert, march: 1 to 3 = encounter
  • All other: 1 or 2 = encounter
  • Roll another d6 to see if the party or character is lost:
  • Plain or pond: 1 = lost.
  • Rough, desert, marsh: 1 to 3 = lost.
  • All other: 1 or 2 = lost.
  • Use a wilderness encounter table to suit your needs.

Additional Wilderness Survival Rules

The D&D Expert Set rulebook covers various wilderness survival rules, which I will briefly discuss next. For full details I would recommend purchasing the D&D Expert Set rulebook via the Dungeon Master's Guild website, available here: D&D Expert Set Rulebook


In terms of movement, to find the distance travelled in a single day, divide the normal movement rate by 5. The result is the number of miles travelled in a normal day.

For example, a character who moves 90' per turn in a dungeon, travels 18 miles per day in the wilderness (90 / 5 = 18). The slowest movement rate in a party determines the distance travelled in a party.

Terrain affects the rate of travel, this may be an increase or decrease to the number of miles moved per day. I will cover more on this topic in a future article.


Characters may forage while travelling by slowing their movement rate to two-thirds the normal speed. Foraged foods include nuts, berries and small game. Characters usually have a 1 in 3 chance of finding enough food to survive. This may be modified due to terrain.


Characters can also hunt. If a day is spent without moving then normal foraging is automatically successful and there is a 1 in 4 chance of encountering animals, which can be hunted for additional food.


If you run out of food then your characters will face starvation, which means they will require more rest and will have to travel slower. They will also be penalised on their To Hit Rolls, and will lose Hit Points gradually. Eventually they will starve to death.


For every six days they spend travelling, characters need to rest for one day. If they do not rest then they will suffer a -1 penalty to their To Hit Rolls and Damage Rolls until they do.

So these are the basics of how I have decided to generate random wilderness for a solo Dungeons & Dragons campaign. I will continue to build on these concepts and I encourage you to build upon them too for your own solo DnD campaigns. I am aiming to provide the basic tools and there are still quite a few things I intend to discuss, including playing with a published campaign setting or a published module, and also playing with a full party rather than a single player character. Playing with a party will help the player balance the game and balance the individual skills of the different character classes as well as their ability scores. Old school rules are definitely unforgiving when it comes to character survival!

Published Settings and Published Modules

I am aware that the BECMI D&D rules are not set in a vacuum, and an official campaign setting does exist for it. This campaign setting is known as 'Mystara'. As this 'How to Play Dungeons & Dragons Solo' blog series is predominantly dealing with creating a random world, I would like to impart to you an example of a full solo Dungeons & Dragons campaign, which uses the published 'Mystara' campaign setting as well as published modules. These modules are published specifically for the BECMI rules and are also set in the world of Mystara.

The example I will impart will not take a tutorial based approach. It's a podcast which I have produced and I upload episodes to my YouTube channel and they are also available on several of the main podcast platforms such as iTunes, GoogleAmazon and Podbean.

The podcast is called 'Tales of Mystara' and it aims to do two things:

1. It will provide entertainment for people who love D&D (especially solo D&D) and will aim to give them that D&D 'fix'.

2. The podcast (in an entertaining and story driven form) will show how I play my solo DnD campaigns, much like these tutorials but with a focus of implementing the rules in a published setting, using published adventures.

My hope is that the Tales of Mystara podcast will give you some insight and inspiration that will help and encourage you to build your own solo campaigns. It's definitely encouraging me as I'm taking a lot of things I've covered in this blog so far and pulling it into the context of published adventures and a published campaign setting.

Quick Note: There may be some confusion caused by the video included with this article. The 'How to Play Dungeons & Dragons Solo' blog and video series will continue and I plan to cover plenty more concepts including several further concepts relating to wilderness adventures. So stay tuned!

I will end this article here with a link to the first episode of Tales of Mystara. Be sure to check back for future articles and future tutorials.

Be sure to check for more content. In the meantime:

See you next session...

Support Me with a Donation

If you enjoy my content and find value in it and would like to send a small donation over to show your appreciation and help support this blog so it can continue to grow then please follow the link below to make a donation via PayPal.


Solo Dungeon Crawler Exploration Rules

Solo Dungeon Crawler Wilderness Generator


Popular posts from this blog

How to Play Dungeons & Dragons Solo - Part 1 - Which Ruleset? A Solo DnD Tutorial

Hello and welcome to this blog. “ How to Play Dungeons & Dragons Solo ” . This blog will explore the concept of playing Dungeons & Dragons solo . This means playing the game completely by yourself with no Dungeon Master. The idea to write this blog naturally developed from a YouTube video series I created back in July 2020, dedicated to the process of how to start and run a Dungeons & Dragons solo campaign . I was increasingly requested to write all the information down to aid my viewers and provide something that brought all the information together in a concise format. How to Play Dungeons & Dragons Solo - Part 1 - Which Ruleset? A Solo DnD Tutorial In this blog I will present the information from the original videos (which I would advise watching in full as a reading accompaniment to obtain the full context) and expand upon it, showing you in further detail how to design and play a solo Dungeons & Dragons campaign by yourself with no involvement from

How to Play Dungeons & Dragons Solo - Part 10 - Adventure Backgrounds, a Solo DnD Tutorial

I have some very functional procedures for generating coastlines, rivers, lakes, wilderness and dungeons, as well as interesting features, such as ruins, monuments, strange dwellings that exist off the beaten track, settlements both large and small and strongholds of different shapes and sizes. All this content along with the solo mechanics I have developed, make for a fairly satisfactory solo experience so far, but as I stated in the previous article: "the work is never done". There is still plenty to cover and plenty more things to be developed further. In particular, to create a deeper sense of immersion I want to look into methods for creating rich, immersive descriptions and backstory to help solidify my solo DnD game world so it can be brought to life. One important bit of backstory to be included is a background story to describe the adventure at hand, what is actually going on? What is the motivation for my character or party, why are they going on an adventure? An

How to Play Dungeons & Dragons Solo - Part 3 - Dungeon Generation, a Solo DnD Tutorial

Welcome to my blog, How to Play Dungeons & Dragons Solo , dedicated to playing Dungeons & Dragons solo using Basic D&D rules. This series of blog posts is based on a YouTube video series I started back in July 2020 and is all about working out a way to play solo Dungeons & Dragons games . The aim is to develop a suitable rule system so that a game of D&D can be played without the need for any other players or a Dungeon Master. How to Play Dungeons & Dragons Solo - Part 3 - Dungeon Generation, a Solo DnD Tutorial In the first post I discussed the different iterations of the game, which are available, as well as which one would be the most suitable to use for a solo DnD campaign . I've decided to go with the BECMI Basic D&D rules written by Frank Mentzer and published in 1983. I also briefly talked about the stationary and equipment needed to play. I recommended the use of stationary over digital tools to encourage playing in an old school way, bu