Ubisoft Chengdu · Ubisoft Toronto +3*
Tom Clancy's Rainbow Six Siege

Where and when.
- 2015-12-01
- Date precision
- Exact date
- 2015-12-01 · Xbox One*
- Release date
- 2015-12-01*
- Date precision
- Exact date*
- Platform
- Xbox One*
- 2020-12-01 · Xbox Series X/S*
- Release date
- 2020-12-01*
- Date precision
- Exact date*
- Platform
- Xbox Series X/S*
- 2021-06-30 · Xbox Series X/S*
- Release date
- 2021-06-30*
- Date precision
- Exact date*
- Platform
- Xbox Series X/S*
- 2015-12-01 · PlayStation 4*
- Release date
- 2015-12-01*
- Date precision
- Exact date*
- Platform
- PlayStation 4*
- 2015-12-01 · Microsoft Windows*
- Release date
- 2015-12-01*
- Date precision
- Exact date*
- Platform
- Microsoft Windows*
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* Provisional data