There are a large number of items in Arknights with various uses depending on their type listed below.
- Battle Records
- Upgrade materials
- Building materials
- Skill Summaries
- Promotion materials
- Tokens
- Currencies
- Sanity restoration items
- Event items
- Operator items
- Integrated Strategies items
- Miscellaneous items
All non-exclusive items are separated into six tiers denoted by the background it overlaids with as shown below, with higher tier ones being more difficult to obtain than lower tier ones, although certain items did not use the background.
| Tier 1 | Tier 2 | Tier 3 | Tier 4 | Tier 5 | Tier 6 |
|---|---|---|---|---|---|
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