Who is Crawdad105?

Crawdad105 is an independent content creator who specializes in creating games, programs and videos. His videos are primarily Terraria based and can be found on his Youtube channel. He also makes games, and programs. Based on Crawdad105's previous programs on his itch.io page, it is clear to see he also primarily focuses on Terraria programs as well. Before these programs were as abundant on his pages he would make games using Unity. All of the information on this website (currently) was written in 1st or 3ed person by Crawdad105's himself or by ChatGpt (AI was not used to generate code).

Download Image

About this website

The purpose of this website is… there is no purpose. Have you ever wanted a website? Because I (Crawdad105) did so that's why it's a thing. I want this website to be a place for all Crawdad105 related information. This website is not currently finished, however it will also probably never be finished as I will keep adding to it.

Content on this website

This website should contain a lot of information about Crawdad105 that is not personal. this site is being updated, at this point, yearly. This website will also contain many Terraria programs and information, as that is the main purpose of the Youtube channel. There will also be other pages that are not related to Terraria or Crawdad105. This is simply because if I have a place to post stuff publicly and am paying to have a website, I'm going to put whatever i want here.

Launch Terraria

Clicking >this link< will launch Terraria. This requires Steam and Terraria to be installed. It uses the Steam url protocol to launch a game which ive set to Terraria. Its not very useful but ive not seen it been done before.

cModLoader

cModLoader, or Crawdad105's Mod Loader, is a mod loader made for vanilla Terraria by Crawdad105.
It allows users to mod vanilla Terraria. After around a year of waiting it is finale released. It does not work in all versions unfortunately but it works in the main ones. And after 3 years of waiting, cModLoader was also released with "auto fisher 2.0", now usable in any versions with any resource packs (and contains cheats). More information can be found on the cModLoader page.

Download Image

3DS firmware

I (Crawdad105) have been working on a Luma3DS mod to the rosalina system module called "ctn firmware" that gives the user the ability to debug programs completely locally without needing a computer. It currently has a debugger allowing for breakpoints and a memory viewer, writer and dumper. The firmware outside of its debugging has many useful features such as a file browser, custom plugin system, a clean and usable user interface and many more.
This can download this firmware mod on github but note is its a boot.firm file.

3ModLoader

Because my 3DS firmware allows me to modify and debug memory of a game, i am also working on 3ModLoader, a cModLoader port to the 3ds version of Terraria. On my discord server there is a bunch of information, videos and more showing proof of concept mods and more. Technically this is downloadable on the crawdad105 discord but it is not released and it was only posed for testing purposes. At the moment it is a plugin for ctn firmware so that will be needed to use it. This youtube video shows what 3ModLoader is among other things. For information on reverse engineering the 3ds versions of Terraria, there is a github repo with a bunch of information. 3ModLoader is also mentioned briefly in the Terraria Tools page.

Open Source Notice

All content, pages, files, images, texts, videos, audio and anything else on the crawdad105.com website (including subdirectories) are free to use, modify and redistributed without credit, although it would be nice to be credited. However, content should not be assumed as open source. Some content on this site may not be open source and have other licenses, may be copywriter or trademarked or requires attribution or payments (im cheap so probably not that last one) among other things. All files can be accessed on the files page.

Crawdad News

18th September, 2026

Crawdad News - Crawdad105

Number 5

cModLoader now released

The long awaited vanilla mod loader, cModLoader, has finally been released on Crawdad105's github. After over a year in development users can now mod vanilla Terraria the way Crawdad105 intended. A video on Crawdad105's youtube channels explains what cModLoader is while addressing the rivaling mod loader TerrariaModder. cModLoader has not received very much traction but this is to be expected, TerrariaModder had already had many thousands of downloads, while cModLoader was just released. Crawdad105 has said that he does not wish for cModLoader to replace TerrariaModder, in fact he has redirected people to TerrariaModder due to the lack of mods for cModLoader. Because cModLoader has just been released, no known mods other then the auto fisher it was released with have been made for it. It is unknown if cModLoader will ever be useful for non-developers.

3DS Terraria to be modded

For years the internet has flat out denied the possibility that the 3ds versions of Terraria can be modded. Every once in a while a user will come along and say there is nothing technical stopping it but it was never done. Crawdad105, after releasing cModLoader has now focused his attention on reverse engineering the 3ds versions of Terraria. In an effort to prove the internet wrong, 3ModLoader was created to mod this versions of Terraria. 3ModLoader is a plugin for his custom firmware mod for the 3ds, named ctn firmware, the name choice is still a mystery. At the moment 3ModLoader is not released and only in prototype but technically downloadable on the Crawdad105 discord. As a proof of concept it shows modding the 3ds versions of Terraria was never a mater of if its possible, it was when someone would finally do it.

3DS Terraria Reverse Engineering

On the official Crawdad105 discord server Crawdad105 has been posting updates on his attempts at reverse engineering Terraria on the 3ds. The reason being is that nobody has done it before, and to create 3ModLoader internal information is needed. At the moment Crawdad105 has gone so far as to figure out how rendering is done, as he wishes to create an in-game UI section for 3ModLoader rather then relying on his ctn firmware. Just about all reverse engineering information has been posted on the 3DS-Terraria-Reverse-Engineering github page.

cModLoader Video

Crawdad105's resent cModLoader video has preformed better then previous videos. Despite cModLoader being a relatively unknown project 29,000 people showed up to watch it. This video was not entirely about cModLoader though, as comparing it to TerrariaModder was the goal. The moral of the story is that cModLoader is for specific vanilla modifications while TerrariaModder is a temporary fix for tModLoader.

Custom 3DS Firmware

ctn Firmware was created by Crawdad105 because Luma3DS apparently did not do enough. The list of features is too large to mention here however some things include a local debugger, plugin and UI system. It can be downloaded on the ctn-Firmware github page. The meaning of 'ctn' is still unknown, Crawdad105 has not mentioned what it means however it is likely a reference to 'ctr' which is an often use acronym for 3ds related content.

Multiple Videos

Crawdad105 has posted 2 videos within 2 weeks. This is unlike before where videos wouldn't come out for months and months at a time. Both videos are related to his on going research for modding Terraria, weather that be the PC or 3ds version. It is unknown if this will become a trend or if it was a one off and videos will continue to take forever to come out.

Progress dose not save