Alfa System* · Nihon Falcom*
Ys I & II*

Where and when.
- 1989-12-21*
- Date precision
- Exact date*
- 1989-01-01 · TurboGrafx-CD*
- Release date
- 1989-01-01*
- Date precision
- Exact date*
- Platform
- TurboGrafx-CD*
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* Provisional data

* Provisional data