Old Gus’ Errata for Dungeons & Dragons 5th Edition

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Wanderers of the Infinite Skies

Updated 2024-12-12, 467 pp.

Broaden your game’s horizons with hundreds of pages of races, class options, three new classes—faerie, scholar, and a battle chef prestige class—new spells, new creatures and familiars, weapons, magic items, and more!

This omnibus compiles content from older editions of Old Gus’ Errata, including:

  • Beast Folk
  • Fey Folk
  • Plantfolk, Undead, and Other Oddities
  • Heroes of the Multiverse
  • Tales from the Weird West
  • Turning the World

It also includes guidance for DMs running and modifying the game, new systems for making the most of the inspiration mechanic, optional rules for mighty melee combat, dueling, making the most of travel between mortal and fey planes, and casting collaborative ritual spells—complete with robust tables for magic mishaps.

⇩ Download PDF (26.1 MB)

Material from Wanderers of the Infinite Skies is also available for MPMB’s D&D 5e Character Tools. This import script of Old Gus’ Errata for MBMP by xika allows you to quickly use the material with a robust PDF character sheet.

Cover Image: Wanderers of the Infinite Skies. A human woman with dreadlocks and holding a bladed metal staff travels across a rugged landscape.

Illustration by Sarah Jones

Tales from the Weird West Adventure Guide

Updated 2023-01-08, 220 pp.

Unravel the mystery of centuries past in a post-apocalyptic fantasy western.

This (unfinished) volume includes a setting guide, adventure prompts, an adventure module, treasure, and dozens of new cryptids and creatures suitable for use in a Weird West game or any other game where a DM wants to throw something new at the adventurers is yours for the taking!

⇩ Download PDF (19.4 MB)

This volume is meant for DMs only. Player character options for this setting are provided in Wanderers of the Infinite Skies (above).

Cover Image: Tales from the Wierd West Adventure Guide. An undead zombie is shot through the heart. Its cowboy hat and pistol are falling away from it.

Illustration by Roman Chaliy

Frequently Asked Questions

Updated 2025-05-01

All this is really free?

Yes, all this is really free!

If you absolutely must, you can buy me a coffee, but consider finding a better cause to donate to.

How often is this updated?

I'm finished with D&D 5e, and have moved on to running other games. These items are provided as-is for archival purposes only.

I've become especially fond of Monte Cook Games' Cypher System, and maintain Old Gus’ Cypher System Reference Document (OG-CSRD) and its related resources.

What if I have questions?

Ultimately, it is the DM’s role to make rulings and facilitate the game.

To DMs: I believe your actual, played game shouldn't be constrained by words on a page written by an absent author. If you come across a gap in the rules, or find something just isn't working, or something doesn't make sense—don't wait for an absent authority's approval, just make a ruling that fixes it. If your ruling is interesting, logical, or story-based, it’s probably a good one. You can always revisit things later.

However, if you need clarification on design intent, send an email to partario.flynn@gmail.com — It may take me some time, but I will do my best to get back to you!

Can I use this in my own homebrew?

Yes—provided your homebrew is also free to access, and does not include anything created with use of "generative AI" or "large language models (LLMs)" in any accompanying content.

In order to use this material, it can't be part of a crowdfunded effort, or sold on sites like Dungeon Masters Guild or DriveThruRPG, nor can it be part of for-sale packages for virtual tabletops (VTTs).

If you are using this material to publish your own versions, let me know at partario.flynn@gmail.com — be sure to add a link in your material to Old Gus’ Errata using the following URL: https://callmepartario.github.io/old-gus-errata

Is there a D&D Beyond or VTT version?

No.

If you are interested in creating such a thing, send an email to partario.flynn@gmail.com — It may take me some time, but I will do my best to get back to you!

Will you update for new editions of Dungeons & Dragons?

No.

Do you take commissions?

No.

Copyright © 2025, partario.flynn@gmail.com