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Classic Modules Today: N1 Against the Cult of the Reptile God (5e)
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Classic Modules Today: N1 Against the Cult of the Reptile God (5e)


In 1982, TSR published the module named “Against the Cult of the Reptile God” with the module code “N1”. It was written by Douglas Niles and published as a 28-page booklet. The module provides a town as a home base for adventure as had been previously seen in a number of other modules but for the first time introduces a threat within the town itself. In addition it provides a challenging underground adventure and a number of plot suggestions for further adventures in the area should the player characters prove successful.

This conversion guide allows DMs to run the original module with 5th Edition rules and provides a reference sheet for encounters.

To use this conversion guide, you will need a copy of "N1 Against the Cult of the Reptile God" originally available in hardcopy and now for sale in digital format at

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Discussions (6)
Customer avatar
Casey R October 02, 2019 3:08 pm UTC
Any plans for an update soon James?
Customer avatar
James F March 10, 2020 9:07 am UTC
Hi Casey, apologies for slow response. Coming out of a rather busy few months. I will hopefuly get time to update all the small issues people have pointed out in the next month or so.
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Alejandro T July 05, 2019 7:44 pm UTC
should i buy the original module then this product if i wanna run it for 5e or do i only need this?
Customer avatar
James F July 06, 2019 5:23 am UTC
Hi Alejandro. As per DM's Guide rules you need to buy the original as well. We are not allowed to produce conversions which replace the originals completely.
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Keith S February 07, 2019 9:09 pm UTC
It seems to reference page 28, for seeds for further adventures, but there are only 13... What else is missing?
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James F February 11, 2019 6:10 pm UTC
Hi Keith, thanks for the feedback. I see the reference you mean on page 6. The page 28 reference is actually to the original adventure, which has further seeds on page 28. For the life of me I can't remember why I put that in the conversion! But to answer your question, the conversion ends on page 14, so there is nothing missing. I seriously need to post an update to this as there are a number of small changes that have been suggested by users that I have not had time to get to. Thanks again
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Keith S February 12, 2019 6:01 pm UTC
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Karen M July 22, 2018 3:26 pm UTC
This seems to be an oversight, but i Could be wrong; why do most of the NPC spellcasters not have their cantrips (at will spells) listed?
Customer avatar
James F July 23, 2018 7:31 am UTC
Hi Karen, thanks for your feedback. There are three possible reasons. 1) An oversight, 2) I'm Lazy, 3)I thought I'd leave it to the discretion of the DM since they don't take up spell slots etc. and the DM may want to tailor the mix a little to work with (or against) his / her group.

I'm going to go with number 3 because it makes me look better :-)

Seriously though, there are a number of suggestions people have made for small changes, and sadly, real life has not given me the time to make them. I will make a real effort shortly and perhaps state in the text that the DM should remember to assign cantrips, as well as listing the number of cantrips available to each NPC etc.

Again, thanks for your feedback!

Customer avatar
Karen M July 25, 2018 4:55 pm UTC
No Problem :) It's not a big deal deal, I'd be a pretty lazy and unimaginative DM if i couldn't pick 2 or 3 spells to fit an NPC's Theme. I was just curious :P
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Stephen P November 02, 2017 3:57 pm UTC
I thought this might be helpful. My party is about to run into Abramo. Looking at the conversion, it says that one of his first level spells is Curse (Reversed Bless), which is how it is written in the original module. "Reversed Bless" sounds a lot like the Bane spell. Bless allows you to pick targets to add 1d4 to their attack rolls, and Bane allows you to pick targets to subtract 1d4 from their attack rolls.
Customer avatar
James F November 07, 2017 11:22 am UTC
Thanks for the post. You may actually have discovered an oversight on my part. I believe I had meant to change that spell as 5E doesn't really use the concept of reversed spells. Thanks for finding the correct one! There are a few other updates I've been wanting to make and never seem to get around to it. Will try as soon as I have some spare time.
Customer avatar
James F June 08, 2017 5:45 pm UTC
This comment is in response to the review by Preston H, since even the creator of a product can only leave a review after purchasing (and I'm not going to purchase my own conversion) I'm responding here.

Hi Preston, and thanks for the thoughtful and very useful review. It's always nice to see someone elses opinion of something one has written.
Regarding your concerns over Explictica Defilus, I must admit I felt the same while doing the conversion. The naga in the 5th edition monster manual is, I believe, much too powerful for a module of this level, and so I was left with the task of bringing her down to a more appropriate level without much information in the original module, which gives a very basic stat block and description. In the original she had only 40 HP (which I found surprisingly low) and so I adjusted that upward to produce a challenge rating I thought would be closer to the mark. I also have no idea what the Nagas' stats are like in the monster manual of the time, since I don't...See more
Customer avatar
Preston H June 12, 2017 9:38 am UTC
Oh wow, I wasn't expecting to hear from the product creator! I'm glad to hear you found the review useful; as I said, I find the conversion to be really solid and valuable, and I plan to make use of it next time I run the module.

If you do update the conversion and Explicitica's stat block, I'd definitely be excited to check out the new version, so I can't wait to see! Thank you again for sharing your thoughts and the process behind developing this conversion of the reptile god; it was really neat to read about. I'll keep an eye out for X6 Quagmire and try to remember to check it out.
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File Last Updated:
April 29, 2017
This title was added to our catalog on April 29, 2017.