A downloadable TTRPG

Buy Fluxfall Horizon in PDF from DrivethruRPG!

Buy Fluxfall Horizon at Drivethrurpg!

What is Fluxfall Horizon?

Fluxfall Horizon is a parallel Earths tabletop roleplaying game. Players play as "lancers," who are from the late 24th century. For reasons all their own, they each wish to travel to an alternate Earth and then promptly return. But no plan survives contact with a faulty Quantum Hub! 

This game is a "Powered by the Apocalypse (PbtA)" type of game where stats are minimal and narrative elements dominate in a collaborative storytelling environment.

The game runs about 200 pages (A5) and includes:

  •  Light Rules for an adventure RPG
  • Character Creation for 10 playsheets 
  •  How to Run a Session
  •  Parallel Earth Generator: billions of possible combinations
  • Seven distinct scenarios: Includes rollable tables for the GM to generate thousands of iterations.
  • Printable GM sheets for tracking PC, Earth and Team Goal details
  • Backgrounds for all five factions: ChronoCorp, Armed Alliance, Foundation, Order of the Continuum and World Council. 
  • Four distinct External Threats 

Get the Quickstart

Download the free Fluxfall Horizon Quickstart

Join the Fluxfall Jam


Ends June 15, 2022

Check out the Fluxfall Horizon Table Generator Project by hypnoCode

What's the premise of this game?

Fluxfall Horizon is a Powered by the Apocalypse RPG involving players who "lance" or jump from parallel Earth to parallel Earth, originally starting from an ultra-tech future and wrestling with both local problems as well as secret personal objectives. 

World is always changing: At the heart of the game is the conceit that Lancers are using quantum disentanglement equipment that is harming the Continuum, a sort of living, breathing omnipresence. And each time the Continuum is harmed, the Lancers are forced to an adjacent parallel Earth, one where most of the details are the same but some... aren't. This kaleidoscope of worlds is the harsh new reality for Lancers.

The Put Right: There is a way to heal the Continuum, and that is to solve one kind of problem or another. Referred to as a "Put Right," this team goal can improve the version of Earth that lancers find themselves on, and possibly give them a shot at returning Home.

Secret Objective: Each Lancer harbors their own secret goal, and by design it is at odds with those of other and possibly the Put Right as well. The mechanical reward for fulfilling this objective is character advancement, which is not necessarily a concern in one-shot play. But as far as one-shots, survival and the Put Rights should be more than enough to occupy players.

Gear, Specials and Conceits: The game also features smaller mechanics that affect what would otherwise be vanilla PbtA structure. Basic gear is anything and can be easily acquired, within reason. But Special Gear offers one kind of material advantage or another to a Move roll. Specials and Conceits are further mechanical mods that are specific to the playsheet.

Quantum Powers: Certain roleplay triggers, which differ for each character Type, earn Disentanglement points. Enough of these points will unlock stat upgrades and Quantum Powers. Quantum Powers are supernatural powers that Lancers wield to to do a number of different things like phase through matter, create illusions, intuit secrets, heal others or cause harm.

The Factions

The five factions are relatively generic, but may get more detailed after a stretch goal in the crowdfunding phase of the project. The five factions each have two playsheets:

Corporate (Junior Exec and Senior Exec): You were selected for field work not because you are expendable, but because of your quick thinking and your discretion, and above all your loyalty to the company. Those things are indispensable to ChronoCorp, and you’re important to the company. You were born for the job of corporate chronolancer.

Military (Soldier and Officer): You knew you would serve in uniform as far back as you could remember. But but you trust ChronoCorp about as far as you can throw their corporate headquarters. Duty has you here, on the front lines fighting a new enemy. It would just be nice if the brass told you who or what that enemy is.

Science (Planetologist and Quantologist): Colleagues have told you that it is a waste of your talent to be lancing with laymen but you have your reasons. After all, it’s a new age of enlightenment for humankind, and you have been chosen to be marching into its latest frontier!

Navigator (Neophyte and Elder): Members of the Order of the Continuum do not call themselves “Navigators,” but the name does not offend. After all, ever since ChronoCorp approached the Order for assistance so many years ago at the dawn of their quantum exploration, navigation is what the members have done.

Civilian (Tourist and Bystander): You weren’t trained for this. You actually tried to do some research on lance technology once, but between the military, ChronoCorp and the Order, each source was more tight-lipped than the last. But now you get to itch your passing curiosity with the real thing.

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The Playsheets

The most essential components of each character are their four core stats, specials that modify certain Move rolls, Special Gear that also modifies rolls, and their Secret Objective.

  1. Junior Exec: The only thing standing between you and the promotion that will mark your career launching into the stratosphere is this one lance. How bad could it be?
  2. Senior Exec: You’re a little old to be doing any more derry-do time lances, but every single one has only bolstered your status on the board. Lancing is good for your health.
  3. Soldier: Most of the questions everyone’s asking you are above your paygrade, and frankly you’d like to know the answers to them as well. You personally volunteered for this elite assignment, though, and you’ve trained for this.
  4. Officer: You’ve been inside the need-to-know military intelligence bubble for longer than you can remember. And if there’s one thing you can say about it all, it’s thatlancing is bad for the health of your Earth. But that’s not your problem. You’ve got your orders.
  5. Planetologist: The rigors of the study of planetology have yielded you the greatest status among scientists, apart from quantalogists. You have learned so much about the complex, interlocking systems of a planet.
  6. Quantologist: Your science is the backbone of ChronoCorp. Your understanding is based purely on hard work: mathematical modeling and years-long thesis projects. Your understanding of quantum entanglement makes you extraordinarily rare and valuable.
  7. Neophyte: Your parents contacted the Order when you were still very young. Robed figures came and you began a curriculum meant to harness your abilities. As you passed into adolescence, the Order and its esoteric goals became your life.
  8. Elder: You have seen the edge of time and space itself, but what has frightened you more is what you have seen in the boardrooms of ChronoCorp. They know not what they do, and your burden is heavy. The Order does more than just protect the Continuum.
  9. Tourist:  Can you put a price on legacy? To be one of the first 500 quantum tourists in all of history? Actually, yes, there is a price. When you add up the ChronoCorp lance and technology lease fees, the training, insurance policy and PR, it’s about $750 million per trip. Quick round trip but worth every penny.
  10. Bystander: You may have been a junior technician, a janitor or just a buddy of an employee at ChronoCorp. But now you’ve got a Transceiver Puck and a very real disruptor pistol strapped to your belt. You didn’t sign up for this. You certainly didn’t pay for this. But now you’re a lancer.

What do you do in the game?

The player's character, or Lancer, has two main considerations: the Team's Put Right and their personal Secret Objective. The Put Right is prominently displayed on the handheld device that lances them to each new parallel Earth. It is a local problem or conundrum that may be as small as returning a cow to its rightful owner to as large as restoring the planet's atmosphere. 

The Put Right, as well as the NPCs and parallel Earth details, can be quickly generated with roll tables.

Each Lancer's Secret Objective is meant to create tension among the group, and is specific to the faction being played. 

Whenever lancers fail to operate their Fluxtech equipment or otherwise mess up a jump, they cause damage to the Continuum. This results in an immediate fluxfall, or jump from from their current parallel Earth to a new one. In practice, the world all around them changes in only one or two ways. But the way it changes can create drastic problems for the Team.

Likewise, by completing Put Rights, the Team can reverse the damage done to the Continuum and improve their situation. Unfortunately, some Lancers might put their Secret Objective at a higher priority than the Put Right, thereby creating more problems!

What are the Moves?

There are intended to be few moves in this game in order to create a more casual and approachable gameplay experience:

  • Dive Into Danger
  • Sneakaroo
  • Persuade
  • Demystify
  • Best your Double/Doppel
  • Innovate
  • Recover
  • Tinker with Fluxtech
  • Flashback
  • Pray to the Void
  • Give a Continuum Coin

There are no specific GM Moves listed, to keep things simple for newcomers to the PbtA paradigm . Instead, there is a list of tools that GMs can use in the fiction to keep the story rolling.

Buy Fluxfall Horizon at Drivethrurpg!

The Setting

A Darkness Gathers 

The year is 2390 where your lancers begin, and the world is a mostly peaceful place. Fluxtech has been around for decades, but has yet to transform Home Earth, at least in any ways that are known to the general public. But as the five Factions share this technology and dabble in parallel worlds, no one sees what might be coming from beyond the quantum horizon. These external threats are listed in the Stretch Goals of this project, and are lightly detailed in the free PDF "Fluxfall Horizon: Timeline." 

The Timeline 

Any parallel Earths game where you spend most of your time in gonzo alternate dimensions is quickly going to leave your starting Earth way behind in the rear view mirror. What matters most in Fluxfall Horizon are what the lancers bring with them: their secrets and their psychological baggage in terms of how they view themselves (see doubles/doppels) and how they view certain others (see special connections). 

 So what is the point of a timeline of Home Earth, a long history of things that lancers will immediately leave behind? The historical details in this supplement are simply intended to provide a springboard for ideas. By having a backdrop of history (or at least a framework), a GM can hopefully be inspired to generate scenarios that have some connection to the technology, politics and history of a world that the lancers once knew.


Four "external threats" plague humanity in one way or another, and present a persistent danger to lancers that goes beyond the ability to simply lance away.

  •  Terranovians: a fungal humanoid lifeform that can open slipgates between parallel Earths, and seems intent on eradicating life on every Earth they encounter. They want to replace all plants and animals with their own mycelial monoculture
  •  Weavers: a hyperintelligent spider race ruled by a single Queen, systematically dominating Earth after Earth. They do not want to kill off humans, just reduce them to peasants in an interdimensional fiefdom
  •  Visayans: a space-faring serpentine race that travels in a massive armada of ships carrying millions of self-entitled royalty. Their entire fleet jumps from Earth to Earth, sucking each one dry of its most vital resources before moving on
  •  Containment Cell: ChronoCorp sent an elite extraction team to an Earth dominated by another ChronoCorp. The team never returned. Instead they and their duplicates have been reported on multiple Earths bolstering the local ChronoCorp by violent, paramilitary means. 

Where did this come from?

The thematic drive of the game comes from Sliders, Quantum Leap and a bit of Stargate SG-1. The mechanics are PbtA (orginally Apocalypse World, Meguey and Vincent Baker) with influences from Masks (Brendan Conway), Urban Shadows (Andrew Madeiros, Mark Diaz Truman) and the Year Zero Engine (Tomas Härenstam).

The Team

Dave Thaumavore: [writer] Creator of the eponymous RPG review channel on YouTube, author of the Index Card RPG setting expansion Age of Snakes: Adventures in a Fallen Alfheim, and the all-halfling ICRPG/5e one-shot The Turnip Knights.

Dan Morison: [illustrator] AKA Dark Mechanic, is a UK based Concept, Storyboard and Sci-Fi & Fantasy artist, and has worked with The Agents Card Game, Games WorkshopMutant Year Zero and Warzone: Mutant Chronicles.

Nathen Graey: [illustrator] Born and raised in Hertfordshire, England and now a native of the Pacific Northwest, Nathen works as a graphic and layout designer. When he's not playing TTRPGs, he's designing enamel pins, stickers, and postcards. Follow him across the interwebs via http://linktr.ee/owlbare.

Joshua Meehan: [illustrator] Joshua Meehan has worked on many IPs including Dishonored 2Pathfinder, and as lead artist for Ironsworn: Starforged

Monday Cox: [layout consultant]

Riley Kirkham: [editor and sensitivity reader]

Thomas Manuel: Thomas is the author of the concise, heartfelt, thoughtful and useful weekly newsletter, The Indie RPG Newsletter. He is also the creator of several RPGs you can find on Itch.io, has written plays that people have actually performed on stage, and most recently published a book through a major publisher that covers the history of the opium trade in 19th century Asia.

Damion Sailors: Damion is a wannabe pirate who finds himself presently jumping through academic hoops attempting to get an important piece of paper he can hang on the wall and throw darts at. Damion studies archaeology within the Pacific Island and Pacific Northwest regions but, prior to academia, he was a tall-ship captain and non-profit founder whose responsibilities ranged from carrying cargo in the South Pacific to conducting “eco-tours” and educational programs around the world. Damion has a passion for TTRPGs, terrain crafting, and fluxtech with a special interest in Conformally Invariant Supersymmetric Quantum Gauge Field Theory.

Official Playlist


Party of One Podcast with Jeff Stormer: Episode 309 with Hopper Crain

Flights of Fandom: TVA | A Fluxfall Horizon TTRPG Actual Play | Episode 0.5


Fluxfall Horizon Third Party License

This license allows anyone to publish materials for Fluxfall Horizon, either for free or for sale, without any fees, royalties or other payments to be made to Dave Thaumavore. Here are the terms:


  • Adhering to these terms allows you to publish free or commercial material based upon or compatible with Fluxfall Horizon without express permission from Dave Thaumavore.
  • ART and TEXT from first-party Fluxfall Horizon books and materials MAY NOT be reused or translated, unless you have our written permission. 
  • You MAY use the names of Types, Factions, Threats and Gear from the game world. You may use the mechanics and rules of Fluxfall Horizon however you wish.


  • You may not directly or indirectly create the impression that your product is an official Fluxfall Horizon product endorsed or sponsored by Dave Thaumavore unless that is, in  fact, the case.
  • Your product CANNOT use the Dave Thaumavore logo or the regular Fluxfall Horizon logo without written permission:


  • You ARE allowed and encouraged to use the Fluxfall Compatible logo (right-click to download):


  • Dave Thaumavore takes no responsibility for any legal claims against your product. Any legal disputes, controversies or claims related to this license shall be governed by and construed in accordance with the laws of the United States and be settled by a U.S. court.


  • The following text must be included in the legal text, somewhere visible in the publication, and on the website or storefront where you promote the product:

[Product name] is an independent production by [Author or Publisher] and is not affiliated with Dave Thaumavore. It is published under the Fluxfall Horizon Third Party License.

Fluxfall Horizon is copyright Dave Thaumavore.

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