If you backed the earlier ToV kickstarter which had a Players book and
Monsters book, you might want to check out the kickstarter for the Game
Master Guide:

<https://www.kickstarter.com/projects/deepmagic/tales-of-the-valiant-game-masters-guide-5e>

Here's the marketing spiel:

The Game Master's Guide is a hardcover guide to the best seat at the table of
any TTRPG: the one who puts it all in motion!

The Game Master's Guide delivers a full suite of expert tools to make your
game stronger than ever, to open campaign options, and to keep your players
guessing.

Game mastery starts with campaign design and development. The GMG then goes
beyond the basics with clear, precise rules for crafting magic items,
researching new spells, building precisely-calibrated encounters-and much
more!

What is the difference between the 5E DMG and Tales of the Valiant GMG?
=======================================================================

The big-picture goals for Tales of the Valiant Game Master’s Guide are:

1) Provide extensive guidance on organizing and running games, including:

• How to find players

• Dealing with scheduling

• Running games for different personality types

• Creating effective session notes

2) Present expanded rulesets to enrich the elements of the game that your
table cares about most:

• The Advanced Combat chapter includes rules for running colossal monsters,
creating minion-versions of monsters, staging mass combat scenarios, and using
a brutal injury system to track damage.

• The Advanced Exploration chapter includes rules for running exploration as a
hex crawl, constructing chase encounters, and playable resource scarcity
options for survival-style gameplay.

• The Advanced Social chapter contains rules for an attitude system to combine
roleplay with rolling and reputation mechanics to track PC influence with
factions.

• Other highlights include rules for sentient magic items, magic-item
crafting, firearms, siege weapons, skill challenges, monster harvesting, and
MORE!

3) New options for mechanics introduced in the Players Guide and Monster
Vault. These plug-and-play options include:

• A huge selection of curses, diseases, hazards, and traps to raise the stakes
of your encounters.

• More vehicle stat blocks of every type—including suites of burrowing,
submersible, and flying vehicles!

• Expanded lists of poisons and poison-types

• Random treasure tables and random magic item tables to generate killer
rewards quickly—all using treasures from the Player’s Guide.

• Random encounter tables for every environment and tier of play—all using
creatures from the Monster Vault.

4) An extensive suite of homebrewing tools. These tools provide specific and
actionable guidance whether you want to modify existing options quickly or
build brand new options from scratch. Best of all, we show you every step of
the math we use to build our obsessively engineered monsters!

And quite a lot more. See the sample PDF for a complete table of contents.

Do I need the Game Master’s Guide to run Tales of the Valiant games?
====================================================================

If you own the Player’s Guide and the Monster Vault, you have everything you
need to run a basic Tales of the Valiant game—especially if your table uses
pre-written adventures and published campaign settings.

However, GMs who want to create their own adventures and settings—or GMs who
run games for more advanced players—will find the Game Master’s Guide a
must-have tool for creating robust and well-rounded game experiences.

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