Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (6)
 Star Ocean | Jul 19, 1996 | Main Game | – | 78 | 78 |
| Star Ocean: The Second Story | Jul 30, 1998 | Main Game | – | 85 | 85 |
| Star Ocean: Till the End of Time | Feb 27, 2003 | Main Game | 75 | 89 | 82 |
 Star Ocean: The Last Hope | Feb 19, 2009 | Main Game | 77 | 67 | 72 |
| Star Ocean: Integrity and Faithlessness | Mar 31, 2016 | Main Game | 60 | 53 | 57 |
 Star Ocean: The Divine Force | Oct 27, 2022 | Main Game | 66 | 80 | 73 |