What’s in the box?
Explore known contents, releases, and published odds before you open one.
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Anniversary Prize Box
Contains various unique Anniversary Prizes. Items are randomly chosen. No key is required to open.
Availability
Last available: Apr 3, 2026 · End date unknown
Offering history
All recorded offerings, newest first. Announcement-only entries have no confirmed end date.
| Dates offered | Source |
|---|---|
| Apr 3, 2026 · End date unknown | It's Time To Gear Up And Celebrate |
| Apr 3, 2025 – Apr 13, 2025 | Spiral Knights Wiki |
| Apr 4, 2024 – Apr 16, 2024 | Spiral Knights Wiki |
| Apr 3, 2023 – Apr 16, 2023 | Spiral Knights Wiki |
| Apr 4, 2022 – Apr 18, 2022 | Spiral Knights Wiki |
| Apr 2, 2021 – Apr 12, 2021 | Spiral Knights Wiki |
| Mar 31, 2020 – Apr 14, 2020 | Spiral Knights Wiki |
| Mar 29, 2019 – Apr 14, 2019 | Spiral Knights Wiki |
| Mar 21, 2019 · End date unknown | Spiral Knights 8th Anniversary Celebration |
| Mar 30, 2018 – Apr 15, 2018 | Spiral Knights Wiki |
| Apr 4, 2017 – Apr 17, 2017 | Spiral Knights Wiki |
| Apr 4, 2016 – Apr 18, 2016 | Spiral Knights Wiki |
| Apr 1, 2015 – Apr 7, 2015 | Spiral Knights Wiki |
| Apr 2, 2014 – Apr 9, 2014 | Spiral Knights Wiki |
| Apr 3, 2013 – Apr 16, 2013 | Spiral Knights Wiki |
Odds are shown only where recorded. A missing percentage means the chance is unknown.
Anniversary Prize Box (2015 and onward)
24 recorded entries
| Item | Recorded chance |
|---|---|
| Unknown | |
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Anniversary Prize Box (2014) · 2014
21 recorded entries
| Item | Recorded chance |
|---|---|
| Unknown | |
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Anniversary Prize Box (2013) · 2013
34 recorded entries
| Item | Recorded chance |
|---|---|
1%1% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
1%1% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
1%1% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) | |
4%4% group (1/1) | |
1%1% group (1/1) | |
4%4% group (1/1) | |
2%2% group (1/1) |
Source: Spiral Knights Wiki · CC BY-NC-SA. Release entries are kept separate.