---
key: mechanic/rpg-grind--fragment-collection
type: mechanic
id: rpg-grind--fragment-collection
lang: en
title: Fragment collection
summary: >-
  Fragments accumulate toward a specific unlock. In Clash Royale, six shards
  unlock a card’s Evolution; the image shows an already evolved Skeletons card.
updatedAt: '2026-10-22'
status: active
url: >-
  https://gamemechanics.pro/en/knowledge/mechanic/rpg-grind--fragment-collection/
jsonUrl: >-
  https://gamemechanics.pro/api/v1/knowledge/en/mechanic/rpg-grind--fragment-collection.json
markdownUrl: >-
  https://gamemechanics.pro/content/knowledge/en/mechanic/rpg-grind--fragment-collection.md
aliases: []
tags:
  - RPG grinding
  - Equipment acquisition
sourceIds:
  - source-3cb72937c914a9b5
sources:
  - id: source-3cb72937c914a9b5
    title: Clash Royale (2023 interface)
    url: >-
      https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/
    verifiedAt: null
relations: []
placements:
  - catalogId: rpg-grind
    id: fragment-collection
    title: RPG grinding
    url: 'https://gamemechanics.pro/en/mechanics/rpg-grind/#fragment-collection'
    categoryIds:
      - equipment-loot
supersededBy: []
attributes:
  preview:
    updatedAt: '2026-10-22'
    title: Fragment collection
    description: >-
      Fragments accumulate toward a specific unlock. In Clash Royale, six shards
      unlock a card’s Evolution; the image shows an already evolved Skeletons
      card.
    image:
      src: images/mechanics/rpg-final-evolution.webp
      width: 990
      height: 435
      crop:
        x: 15
        'y': 15
        width: 560
        height: 405
      game: Clash Royale (2023 interface)
      sourceUrl: >-
        https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/
      originalUrl: >-
        https://clashroyale.inbox.supercell.com/9jtsgmsiuthj/_NbHW4pnUBYws9jNM7YodxNHv4aTSEAwK0H3iDVrbL4/352148b1a34c1c4956825e274151cd81/368597019_1686918325.png
      credit: Supercell
      rights: >-
        © Supercell. Publisher-distributed screenshot or documentation image;
        all rights reserved. Excluded from portal MIT and CC BY 4.0.
      caption: 'Clash Royale: unlocked Skeletons Evolution, 2023 interface'
      alt: 'Clash Royale: unlocked Skeletons Evolution, 2023 interface'
      markers:
        - x: 18
          'y': 22
          label: The purple icon marks an Evolution unlocked by collecting shards
    tips:
      - 'Show the target, remaining fragments and the rule for excess copies.'
    examples:
      - title: Clash Royale (2023 interface)
        url: >-
          https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/
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
---
# Fragment collection

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

Fragments accumulate toward a specific unlock. In Clash Royale, six shards unlock a card’s Evolution; the image shows an already evolved Skeletons card.

## At a glance

![Clash Royale: unlocked Skeletons Evolution, 2023 interface](https://gamemechanics.pro/images/mechanics/rpg-final-evolution.webp)

[Clash Royale (2023 interface)](https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/) · © Supercell. Publisher-distributed screenshot or documentation image; all rights reserved. Excluded from portal MIT and CC BY 4.0.

1. The purple icon marks an Evolution unlocked by collecting shards

- Show the target, remaining fragments and the rule for excess copies.

- [Clash Royale (2023 interface)](https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/)

## How it works

Parts of a future item accumulate toward a known threshold. Each acquired fragment brings a specific reward closer.

## Variants

### Action → reward

<a id="fragment-collection-loop"></a>

- Accumulate shards or components → assemble an item upon reaching the threshold. <a id="fragment-collection-repeat"></a>
- Collect different named parts of one item. <a id="fragment-collection-option-2"></a>
- Choose which reward to assemble from shared fragments. <a id="fragment-collection-option-3"></a>

## Design example

Each guardian victory grants a fragment; ten fragments assemble into an amulet.

## 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.

- [Clash Royale (2023 interface)](https://supercell.com/en/games/clashroyale/blog/release-notes/card-evolution-2/) (id: source-3cb72937c914a9b5)

CC-BY-4.0 · gamemechanics.pro contributors