METTLE Core vs Werewolf: The Apocalypse

Compare METTLE Core and Werewolf: The Apocalypse side by side. See differences in complexity, dice, genre, cost, and more.

	METTLE Core	Werewolf: The Apocalypse
Genre	Universal, Modern	Horror, Modern, Fantasy
Tags	Pulp Action, Toolkit, Hackable, Rules-Light, Classless, Fast-Paced, CC-Licensed Rules	Atmospheric, Base-Building, Character Building, Character-Driven, Combat-Heavy, Corruption, Lore-Heavy, Strong GM Support, Superpowers, Urban Fantasy
Core Mechanic	Roll a pool of d6s equal to the Attribute being used. Dice showing 1, 2, or 3 are summed as the Score; dice showing 4, 5, or 6 are counted as Edge. The Check succeeds if Score meets or exceeds the Difficulty (Routine 1 to Nigh Impossible 15), and Edge measures how well it went. On a failure with Edge, the player may call for a Twist: accept a complication proposed by the rest of the table, then reroll the Edge dice for a second chance. Initiative passes from the acting character to the target of their Action, who becomes the next to act. Mettle (Motive + Nature) acts as a combined morale and damage track, and characters may Surge by spending Mettle for bonus dice on critical Checks.	Build a d10 dice pool, usually from an Attribute plus a Skill. Each 6 or higher is a success, and meeting the Storyteller-set Difficulty wins. Pairs of 10s add successes. Rage dice replace regular dice up to current Rage and can cause Brutal outcomes.
Dice	d6 dice pool	d10 dice pool
Complexity	Low	High
Accessibility	Very High	Medium
Runnability	Very High	Very High
License	CC BY 4.0	All Rights Reserved
Third-Party Publishing	Not yet researched	Commercial publishing allowed — Storytellers Vault
Summary only, not legal advice. Check current terms before publishing.
Cost	Free	$$
Publisher	Planarian Games	Renegade Game Studios
Year	2021	2023
Best For	Groups who want fast pulp action-adventure in the vein of Indiana Jones, James Bond, or Tales of the Gold Monkey, with a hackable toolkit they can bend toward detective stories, wild-west gunfights, post-apocalyptic survival, or grounded science fiction.	Groups who want long-form modern horror about shapeshifter packs defending communities from ecological and spiritual threats, with violent power constrained by moral and social consequences.
Highlights	Score-and-Edge dice pool reads two outcomes from the same roll: whether the action succeeds (Score meets Difficulty) and how well it went (count of 4–6 dice). Player-invoked Twists let a failed roll be reframed as a messy success in exchange for a fictional complication chosen by the rest of the table. Six-attribute character sheet (Calling, Culture, Frame, Motive, Nature, Poise) replaces classes and skills with player-written Descriptors that justify which Attribute applies to a given task. Initiative passes from the acting character to the target of their Action, eliminating turn-tracking and tying combat order to who is acting on whom.	Rage dice make supernatural power volatile because Brutal results can redirect failed actions into destruction or magnify successful violence. Choosing a Garou form changes a character's capabilities, creating tactical and narrative options. Caerns give the pack an improvable spiritual home whose traits connect campaign advancement to territory and community.
Considerations	Toolkit framing means the book provides scaffolding (factions, NPC seeds, sample castaway adventure) rather than a fleshed-out setting: groups expecting a defined world will need to build or borrow one. Mettle does triple duty as morale, hit points, and a spendable resource for bonus dice, which can take a session to internalize. Twist resolution depends on the rest of the table proposing complications, which slows play if the group is hesitant to add fiction.	After a turn without a kill, Crinos requires Willpower each turn or frenzy follows, making the war form difficult to sustain outside violent scenes. Harano and Hauglosk can remove a Garou from play when despair or absolutism fills either track, making moral decline a campaign-level consequence. The game centers mature environmental and spiritual horror, including graphic violence and themes of exploitation and extremism that require deliberate table boundaries.