Series
Zoo Tycoon
18 games on IGDB
Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (5)
| Zoo Tycoon | Aug 27, 2001 | Main Game | 68 | 79 | 74 |
| Zoo Tycoon 2 | Nov 9, 2004 | Main Game | 70 | 66 | 68 |
 Zoo Tycoon DS | Oct 11, 2005 | Main Game | – | 51 | 51 |
 Zoo Tycoon 2 DS | Feb 5, 2008 | Main Game | 68 | 40 | 54 |
| Zoo Tycoon | Nov 22, 2013 | Main Game | 63 | 66 | 64 |