Company
Turtle Rock Studios
20 games on IGDB
Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (7)
 Counter-Strike: Condition Zero | Mar 23, 2004 | Main Game | 66 | 74 | 70 |
 Left 4 Dead | Nov 17, 2008 | Main Game | 85 | 80 | 83 |
 Left 4 Dead 2 | Nov 17, 2009 | Main Game | 89 | 82 | 85 |
 Evolve | Feb 9, 2015 | Main Game | 77 | 60 | 68 |
 Evolve Stage 2 | Jul 7, 2016 | Main Game | 85 | 63 | 74 |
 Journey of the Gods | May 21, 2019 | Main Game | – | 62 | 62 |
 Back 4 Blood | Oct 12, 2021 | Main Game | 79 | 67 | 73 |