---
key: mechanic/rpg-grind--environmental-windows
type: mechanic
id: rpg-grind--environmental-windows
lang: en
title: Condition-dependent gathering
summary: >-
  A desired resource is available under particular weather, time or
  environmental conditions.
updatedAt: '2026-10-22'
status: active
url: >-
  https://gamemechanics.pro/en/knowledge/mechanic/rpg-grind--environmental-windows/
jsonUrl: >-
  https://gamemechanics.pro/api/v1/knowledge/en/mechanic/rpg-grind--environmental-windows.json
markdownUrl: >-
  https://gamemechanics.pro/content/knowledge/en/mechanic/rpg-grind--environmental-windows.md
aliases: []
tags:
  - RPG grinding
  - Exploration and discovery
sourceIds:
  - source-80f8f0a3ff41788f
sources:
  - id: source-80f8f0a3ff41788f
    title: No Man’s Sky
    url: 'https://www.nomanssky.com/visions-update/'
    verifiedAt: null
relations: []
placements:
  - catalogId: rpg-grind
    id: environmental-windows
    title: RPG grinding
    url: 'https://gamemechanics.pro/en/mechanics/rpg-grind/#environmental-windows'
    categoryIds:
      - exploration-loops
supersededBy: []
attributes:
  preview:
    updatedAt: '2026-10-22'
    title: Condition-dependent gathering
    description: >-
      A desired resource is available under particular weather, time or
      environmental conditions.
    image:
      src: images/mechanics/rpg-nms-visions-23.webp
      width: 1440
      height: 810
      game: No Man’s Sky
      sourceUrl: 'https://www.nomanssky.com/visions-update/'
      originalUrl: >-
        https://www.nomanssky.com/media/legacy/uploads/2018/11/visions-crystals-1.jpg
      credit: Hello Games; official Visions update screenshot
      rights: >-
        Game imagery © its respective rights holders. Official game guide or
        publisher-distributed screenshot; all rights reserved. Excluded from MIT
        and CC BY 4.0.
      caption: A storm enables harvesting luminous crystals
      alt: A storm enables harvesting luminous crystals
      markers:
        - x: 61
          'y': 71
          label: Storm crystals become harvestable during dangerous weather
    tips:
      - Communicate required world conditions before the gathering trip.
    examples:
      - title: No Man’s Sky
        url: 'https://www.nomanssky.com/visions-update/'
endsAt: null
provenance: >-
  Original editorial RPG grind taxonomy authored for gamemechanics.pro on
  2026-10-20 and expanded to cover activities, progression goals, reward rules
  and constraints. All original thirty family/branch/variant identities are
  preserved. Official developer and publisher sources support only the
  specifically described released-game observations; design variants and
  scenarios are hypothetical.
license: CC-BY-4.0
codeLicense: MIT
attribution: gamemechanics.pro contributors
catalogKey: catalog/rpg-grind
---
# Condition-dependent gathering

id: rpg-grind--environmental-windows
type: mechanic
key: mechanic/rpg-grind--environmental-windows
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/rpg-grind--environmental-windows/

A desired resource is available under particular weather, time or environmental conditions.

## At a glance

![A storm enables harvesting luminous crystals](https://gamemechanics.pro/images/mechanics/rpg-nms-visions-23.webp)

[No Man’s Sky](https://www.nomanssky.com/visions-update/) · Game imagery © its respective rights holders. Official game guide or publisher-distributed screenshot; all rights reserved. Excluded from MIT and CC BY 4.0.

1. Storm crystals become harvestable during dangerous weather

- Communicate required world conditions before the gathering trip.

- [No Man’s Sky](https://www.nomanssky.com/visions-update/)

## How it works

A desired resource is available under particular weather, time or environmental conditions.

## Variants

### Variants

<a id="environmental-windows-options"></a>

- Visit locations in suitable weather. <a id="environmental-windows-option-1"></a>
- Track daily environmental windows. <a id="environmental-windows-option-2"></a>
- Change environmental state to reveal a resource. <a id="environmental-windows-option-3"></a>

## Design example

Night dew appears on cliffs after rain, changing an alchemist's route.

## Context and limits

A systematic RPG grind reference: 110 mechanics and 330 variants in 18 sections. Four layers answer different questions: what the player repeats, what develops, how rewards arrive and what constrains the loop. It covers single-player RPGs, ARPGs, MMORPGs and adjacent management and accumulation systems. Every mechanic has an explanation, variants and a hypothetical example; coverage, combinations and verified game observations follow the catalog.

## Connected materials


## Sources and provenance

Original editorial RPG grind taxonomy authored for gamemechanics.pro on 2026-10-20 and expanded to cover activities, progression goals, reward rules and constraints. All original thirty family/branch/variant identities are preserved. Official developer and publisher sources support only the specifically described released-game observations; design variants and scenarios are hypothetical.

- [No Man’s Sky](https://www.nomanssky.com/visions-update/) (id: source-80f8f0a3ff41788f)

CC-BY-4.0 · gamemechanics.pro contributors