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Critfall: Checks

Critfall: Checks

MOD
Ability scores, skills, saves and character creation for Minecraft, built on Critfall’s d20 engine.
by NightsHigh
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Updated Oct 14, 2026
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Adventure and RPG API and Library
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Critfall: Checks

Ability scores, skills and saves for Minecraft. Checks adds a character sheet: your scores comes from Critfall's d20 rolls, and your skills come into play everywhere, from haggling with villagers to leaping across ravines.

Make a character

  • Pick a species, background and class preset, each with its own traits, skills and starting kit.
  • Set your scores with the standard array, point buy, 4d6 drop lowest, or hardcore 3d6 in order.
  • Your size, health and Armor Class follow your character: Constitution adds health, Dexterity and armor set your AC, and a halfling is as small as you would think and so is a goliath as big as you would think!

Grow

  • Levels 1–20. Earn character XP from advancements, raise your proficiency bonus, and pick ability score improvements.
  • Character sheet (K): abilities, saves, passive scores and every skill at a glance.

Talk (G)

  • Persuade or Deceive villagers and traders for better prices.
  • Intimidate them into handing something over, or pickpocket them.
  • Calm animals, scare off hostile mobs, read people with Insight, or play for a crowd.
  • Villagers remember. Get caught and the village talks, witnesses run, and the iron golems come looking.

Explore

  • Athletics: leap gaps, climb faster, tear through cobwebs.
  • Acrobatics: soften hard landings.
  • Stealth and Perception: sneak up on mobs, spot tripwires before you trip them.
  • Sleight of Hand: disarm traps.
  • Investigation: search looted chests for anything missed.
  • Nature, Arcana, Religion and History: learn about mobs and structures the first time you meet them.
  • Animal Handling, Survival and Medicine: tame faster, get hungry slower, and shake off poison sooner.

Every feature can be turned off in the config.

For pack makers

Species, backgrounds, classes and check triggers are datapack-driven, with KubeJS support and an API for other mods. See the docs on GitHub.

Requirements

  • Minecraft 1.21.1, NeoForge or Fabric (plus Fabric API)
  • Critfall 0.2.10 or newer

This is the first release. Please report bugs on GitHub.

License

MIT. The names and rules of the shipped species, backgrounds, classes, traits, skills and ability scores come from the SRD 5.2. The descriptions are our own.

This work includes material from the System Reference Document 5.2 ("SRD 5.2") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

checks-neoforge-0.1.2.jar
MC Client, 1.21.1, NeoForge, Server
Release 2026-10-14 Get
checks-fabric-0.1.2.jar
MC Client, Fabric, 1.21.1, Server
Release 2026-10-14 Get
checks-fabric-0.1.1.jar
MC Client, Fabric, 1.21.1, Server
Release 2026-10-13 Get
checks-neoforge-0.1.1.jar
MC Client, 1.21.1, NeoForge, Server
Release 2026-10-13 Get
checks-fabric-0.1.0.jar
MC Client, Fabric, 1.21.1, Server
Release 2026-10-09 Get
checks-neoforge-0.1.0.jar
MC Client, 1.21.1, NeoForge, Server
Release 2026-10-09 Get

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