Monster of the Week

Short verdict: Monster of the Week is one of the clearest "play a TV season" TTRPGs in the hobby: fast hunter creation, cases built around discovering a weakness, and a Keeper toolkit that pushes each mystery toward a sharp finale. It is best when your group wants Buffy, Supernatural, Angel, Fringe, or The X-Files energy without a heavy rules load.

It is a weaker fit if your table wants tactical combat, forensic clue accounting, or horror built on helplessness. Monster of the Week assumes the hunters can fight back; the tension comes from bad timing, collateral damage, and what the monster does if the team fails to act quickly enough.

What the game is

Monster of the Week is Michael Sands' modern supernatural mystery-horror TTRPG, published by Evil Hat as a stand-alone Powered by the Apocalypse game. The default frame is an episode of television: a hook, a string of escalating discoveries, personal complications, and a confrontation that only works once the hunters understand what they are actually facing.

That structure matters. This is not a generic horror engine with a monster-hunting skin pasted over it. The game expects a team of hunters to investigate strange events, identify the threat, learn its weakness, and stop it before the countdown lands. If your table wants a present-day campaign where clues, relationships, and pressure matter more than equipment optimization, Monster of the Week usually understands the assignment immediately.

Publication history and editions

Monster of the Week began as Michael Sands' independent design before Evil Hat took over publication. By 2015 it was already an ENnie Awards Best Rules nominee, which is a useful marker for when the revised Evil Hat edition had become the public reference point. The current line centers on the 2023 hardcover edition, which Evil Hat says adds 24 pages to the revised softcover material and folds in selected Tome of Mysteries options plus the Snoop and Spooktacular playbooks that had previously lived in downloadable extras.

That makes the hardcover the easiest edition to recommend now. It is the cleanest all-in-one starting point, and it captures what the current official line considers baseline play rather than leaving you to reconstruct the game from older printings and supplement notes.

What you need to play

You only need the core book. Evil Hat sells it as PDF/eBook, hardcover plus PDF, and a Roll20 option; the hardcover includes the PDF at no extra charge. The same official product page also hosts free playbooks, reference sheets, and rules handouts, which lowers the friction for a one-shot or session zero much more than many horror games in the same lane.

The core already gives you the whole loop: fourteen hunter types in the current hardcover, eight core moves, two ready-to-play mysteries, and a full Keeper framework for building your own cases. You do not need a starter box or separate bestiary before the game becomes usable.

Major supplements and starting expansion path

The first major add-on is Tome of Mysteries, which expands the line with alternative Weird moves, support for phenomenon mysteries, four extra hunter playbooks, experienced Keeper advice, and 29 ready-to-use mysteries. If the core book gives you the shape of play, Tome gives you depth and bench strength.

Codex of Worlds is a much larger 416-page expansion focused on team playbooks, campaign frames, new settings, allies, moves, and threats. Codex of Worlds: Apocrypha continues that line with still more team playbooks, mysteries, and rules options. In practice, the sensible buying order is core first, Tome second if you want more ready-made mystery support, and Codex only once you know you want to customize the campaign structure more aggressively.

Digital tools and online play

Monster of the Week is comparatively well served online for a light game. The official store supports PDFs, downloadable player-facing sheets, and Roll20 availability for the core and major expansions. That matters because the game does not need a giant compendium to function well online: once everyone has playbooks, reference sheets, and a shared place to track clues, the rules mostly stay in the fiction.

Core rules and play structure

Like other PbtA games, Monster of the Week runs on player-facing 2d6 rolls modified by a stat. A 10+ is a strong hit, 7-9 is success with a cost or complication, and 6- is a miss that hands the Keeper permission to make a move. The result is a game that tends to keep moving. Scenes rarely stall, and failure usually means the fiction gets worse rather than simply stopping.

The actual loop is specific. The hunters ask questions, investigate clues, protect civilians, get into trouble, and eventually learn what the monster is, what it wants, and what can truly hurt it. A straight-up fight before the table understands the weakness is often messy or ineffective by design, which is exactly why the mystery half of the session matters.

Characters, roles, and advancement

The playbooks do real genre work. The Chosen, Monstrous, Professional, Spooky, Divine, Expert, Mundane, and the rest are not just classes with themed bonuses; they tell the group what kind of stories this campaign wants to produce. A party with a Chosen and a Professional feels different from one built around the Monstrous and the Wronged even before the first dice roll.

Advancement is light but meaningful. Hunters improve by taking new moves, boosting stats, or changing how they relate to the campaign's mysteries and each other. The limited Luck track is just as important as experience: spending Luck can save a hunter at the right moment, but it also pushes certain playbooks toward sharper consequences and more decisive character arcs.

Signature mechanics

• Investigate a Mystery gives the table a structured way to ask useful questions without turning the game into forensic simulation.
• Keeper countdowns create pressure even when the hunters are not in the same room as the threat, which is why sessions feel episodic instead of static.
• Monster weaknesses turn the final confrontation into payoff for earlier investigation instead of a generic combat check.
• Luck lets hunters force dramatic escapes or perfect moments, but it also makes long-term consequences feel personal rather than abstract.

What play feels like

At the table, Monster of the Week feels like a supernatural procedural with better pacing than most trad mystery games. Sessions start with a corpse, omen, disappearance, attack, or rumor, then accelerate as each clue reveals what the threat is really doing. The best campaigns feel seasonal: individual cases wrap up cleanly, but recurring locations, conspiracies, patrons, and enemies keep returning.

Because the rules are light, the emotional temperature comes from the hunters rather than from subsystems. A Spooky's dark side, a Professional's agency obligations, or a Monstrous hunter's divided loyalties can matter as much as the monster's stat block. That is why the game lands so well for found-family campaigns and "we save people, but we are also a mess" party dynamics.

Running the game

Monster of the Week is beginner-friendly from the player side and moderate-load from the Keeper side. The premise is easy to teach, the playbooks tell people what to do, and the basic moves are readable almost immediately. The real Keeper skill is not rules mastery but pacing: you need enough clues in circulation, enough pressure from the countdown, and enough confidence to turn misses and partial hits into escalating trouble.

That makes the game easier to run than clue-starvation mystery systems, but harder than its page count sometimes suggests. If the Keeper hides key information, treats misses as dead ends, or waits too long to advance the threat, the session flattens out. When the Keeper embraces the agenda and lets information flow, the structure does a lot of heavy lifting.

Campaign fit

One-shots and short arcs are the sweet spot. A single monster, a town full of suspects, and a few memorable locations can power a complete session or a two-session mystery, so the game works extremely well for convention slots, pickup groups, and pilot episodes. Campaign play also works, especially if you add a season villain, a recurring home base, or a patron organization.

What it does not especially want is long shopping lists, hex-crawling, or tactical attrition. Even in a longer campaign, Monster of the Week is more interested in recurring relationships and rising fallout than in inventory mastery or combat engineering.

Reception and awards

Monster of the Week has been durable for a reason. It was a 2015 ENnie nominee for Best Rules, and it is still a common recommendation when players ask for Buffy-, X-Files-, or Supernatural-style play. Reputable secondary coverage from Cannibal Halfling Gaming highlights the same strengths most tables notice in practice: approachable PbtA structure, strong hunter archetypes, and a mystery framework that stays usable in actual play rather than collapsing under prep.

The common caveats are also consistent. Groups that want tactical build depth, carefully simulated clue procedures, or relentless powerless horror often bounce off it. Monster of the Week wants competence, momentum, and consequences, not painstaking realism.

Where it is strongest

• Episodic supernatural mysteries with clear TV pacing.
• Fast onboarding for players who want a strong character concept immediately.
• Campaigns where relationships, secrets, and fallout matter more than combat math.
• Keepers who want a rules-light engine with a strong scenario skeleton.

Where it can frustrate groups

• The mystery model is forward-moving, not forensic; clue purists may want something stricter.
• Combat is dramatic but not tactically rich, so crunch-first tables may feel underfed.
• The Keeper still needs to improvise hard consequences and escalating scenes on the fly.
• If your table wants hopeless survival horror, the hunters are usually too capable for that tone.

Content and safety notes

Content warnings depend heavily on the mystery, but the default tool kit frequently touches murder scenes, missing persons, stalking, cults, occult practices, possession, monstrous body horror, and authorities who cannot or will not help. The tone can swing from pulpy to genuinely upsetting, so tables should agree early on how close they want to sit to Buffy banter, X-Files dread, or late-season Supernatural tragedy.

Best starting path

Start with the current hardcover or PDF core book. If the table clicks with the first mystery, add Tome of Mysteries next for ready-made cases and stronger long-tail Keeper support. Reach for Codex of Worlds only when you know you want team playbooks or a more customized campaign frame. Even before you buy supplements, use the official downloadable playbooks and reference sheets from the core product page so session zero moves quickly.

Research notes

Last checked: June 27, 2026.

• Evil Hat: Monster of the Week core product page
• Evil Hat: Tome of Mysteries
• Evil Hat: Codex of Worlds
• Evil Hat: Codex of Worlds: Apocrypha
• ENnie Awards 2015 nominees and winners
• Cannibal Halfling Gaming: The Independents - Monster of the Week
• DriveThruRPG user reviews for Monster of the Week

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