---
key: mechanic/roguelike--family-20
type: mechanic
id: roguelike--family-20
lang: en
title: 'Identification, blessings and curses'
summary: >-
  Hidden properties, blessings and curses change an item’s value. Players
  discover them through inspection, use and special tests.
updatedAt: '2026-10-22'
status: active
url: 'https://gamemechanics.pro/en/knowledge/mechanic/roguelike--family-20/'
jsonUrl: >-
  https://gamemechanics.pro/api/v1/knowledge/en/mechanic/roguelike--family-20.json
markdownUrl: >-
  https://gamemechanics.pro/content/knowledge/en/mechanic/roguelike--family-20.md
aliases:
  - Identification and curses
tags:
  - Roguelikes and roguelites
  - Mechanics catalog
sourceIds:
  - source-06bbf50733ce87d7
  - source-9a1664e49d0e8f50
  - source-87856bbeffa16f0c
sources:
  - id: source-06bbf50733ce87d7
    title: Official Guide
    url: 'https://www.nethack.org/v367/Guidebook.html'
    verifiedAt: null
  - id: source-9a1664e49d0e8f50
    title: NetHack (menucolors)
    url: 'https://commons.wikimedia.org/wiki/File:Nethack-inventory.png'
    verifiedAt: null
  - id: source-87856bbeffa16f0c
    title: NetHack Guidebook
    url: 'https://www.nethack.org/v343/Guidebook.html'
    verifiedAt: null
relations: []
placements:
  - catalogId: roguelike
    id: family-20
    title: Roguelikes and roguelites
    url: 'https://gamemechanics.pro/en/mechanics/roguelike/#family-20'
    categoryIds:
      - section-1
supersededBy: []
attributes:
  preview:
    updatedAt: '2026-10-22'
    title: Identification and curses
    description: >-
      Hidden properties, blessings and curses change an item’s value. Players
      discover them through inspection, use and special tests.
    image:
      src: images/mechanics/systems-nethack-inventory.webp
      width: 644
      height: 461
      game: NetHack (menucolors)
      sourceUrl: 'https://commons.wikimedia.org/wiki/File:Nethack-inventory.png'
      originalUrl: >-
        https://upload.wikimedia.org/wikipedia/commons/f/f5/Nethack-inventory.png
      credit: 'NetHack developers; screenshot by Shen, 2006, with the menucolors patch'
      rights: >-
        NetHack General Public License. Converted to WebP on 2026-10-22.
        License: https://www.nethack.org/common/license.html; bundled copy:
        images/mechanics/nethack-license.txt. Source:
        https://commons.wikimedia.org/wiki/File:Nethack-inventory.png
      caption: The inventory distinguishes known and unknown properties
      alt: The inventory distinguishes known and unknown properties
      markers:
        - x: 52
          'y': 23
          label: The helmet is marked cursed and is already equipped
    tips:
      - Distinguish an unknown property from a confirmed negative effect.
    examples:
      - title: NetHack Guidebook
        url: 'https://www.nethack.org/v343/Guidebook.html'
endsAt: null
provenance: >-
  Original editorial design catalog consolidated from project discussions on
  2026-10-20. Complete discussion item lists and contextual limitations are
  preserved; linked primary sources support specific techniques, not the entire
  classification. English translation was prepared with machine assistance and
  editorial review.
license: CC-BY-4.0
codeLicense: MIT
attribution: gamemechanics.pro contributors
catalogKey: catalog/roguelike
---
# Identification, blessings and curses

id: roguelike--family-20
type: mechanic
key: mechanic/roguelike--family-20
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/roguelike--family-20/

Hidden properties, blessings and curses change an item’s value. Players discover them through inspection, use and special tests.

## At a glance

![The inventory distinguishes known and unknown properties](https://gamemechanics.pro/images/mechanics/systems-nethack-inventory.webp)

[NetHack (menucolors)](https://commons.wikimedia.org/wiki/File:Nethack-inventory.png) · NetHack General Public License. Converted to WebP on 2026-10-22. License: https://www.nethack.org/common/license.html; bundled copy: images/mechanics/nethack-license.txt. Source: https://commons.wikimedia.org/wiki/File:Nethack-inventory.png

1. The helmet is marked cursed and is already equipped

- Distinguish an unknown property from a confirmed negative effect.

- [NetHack Guidebook](https://www.nethack.org/v343/Guidebook.html)

## How it works

Identification, blessings and curses are presented in detail in the classic NetHack tradition. Official Guide

## Variants

### Variants and applications

<a id="family-20-variants"></a>

- Unknown effect of found item <a id="variant-roguelike-20-01"></a>
- New link between appearance and effects in each run <a id="variant-roguelike-20-02"></a>
- Recognition through use <a id="variant-roguelike-20-03"></a>
- Identification by special action or consumable <a id="variant-roguelike-20-04"></a>
- Indirect determination of properties based on observable characteristics <a id="variant-roguelike-20-05"></a>
- Partial recognition of individual characteristics <a id="variant-roguelike-20-06"></a>
- Hidden negative properties <a id="variant-roguelike-20-07"></a>
- Blessed, Normal, and Cursed state of an item <a id="variant-roguelike-20-08"></a>
- Inability to remove cursed equipment <a id="variant-roguelike-20-09"></a>
- Removing curses and consecrating objects <a id="variant-roguelike-20-10"></a>
- Changing the action of an item depending on its state <a id="variant-roguelike-20-11"></a>

## Context and limits

A wide author's map of classic turn-based roguelikes, modern roguelites and hybrids. Families describe options for organizing a run, and not mandatory features of the genre. Constant metaprogression is not found in all roguelikes. Related systems can be combined; the list is not a closed standard.

## Connected materials


## Sources and provenance

Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.

- [Official Guide](https://www.nethack.org/v367/Guidebook.html) (id: source-06bbf50733ce87d7)
- [NetHack (menucolors)](https://commons.wikimedia.org/wiki/File:Nethack-inventory.png) (id: source-9a1664e49d0e8f50)
- [NetHack Guidebook](https://www.nethack.org/v343/Guidebook.html) (id: source-87856bbeffa16f0c)

CC-BY-4.0 · gamemechanics.pro contributors
