The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- .theprodukkt (Developer) (1 member)
- 10tons (Developer) (4 members)
- 10tons (Publisher) (3 members)
- 11 bit studios (Developer) (1 member)
- 1C Company (Publisher) (1 member)
- 2006 (Initial release year) (31 members)
- 2007 (Initial release year) (116 members)
- 2008 (Initial release year) (169 members)
- 2009 (Initial release year) (231 members)
- 2010 (Initial release year) (277 members)
- 2011 (Initial release year) (338 members)
- 2012 (Initial release year) (288 members)
- 2013 (Initial release year) (278 members)
- 2014 (Initial release year) (198 members)
- 2015 (Initial release year) (133 members)
- 2016 (Initial release year) (54 members)
- 2017 (Initial release year) (15 members)
- 2018 (Initial release year) (2 members)
- 2020 (Initial release year) (1 member)
- 24 Caret Games (Developer) (1 member)
- 24 Caret Games (Publisher) (1 member)
- 2K Australia (Developer) (1 member)
- 2K Czech (Developer) (1 member)
- 2K Games (Developer) (1 member)
- 2K Games (Publisher) (21 members)
- 2K Marin (Developer) (2 members)