| title | developer | year | platform | | pop. |
|---|
| Aperture Desk Job | Valve Corporation | 2022 | Linux | shooter | | | label | |
| Black Mesa | Crowbar Collective | 2020 | Windows | shooter Science Fiction | image | subject | label | |
| Black Mesa | Black Mesa Team | 2015 | Linux | shooter Science Fiction | | | label | |
| Codename: Gordon | Nuclearvision | 2004 | Windows | platformer Cartoon | image | | label | |
| Half Life 2 Survivor | Valve;Taito | 2005 | Arcade | Science Fiction | image | | label | |
| Half-Life | Gearbox Software | 2001 | PS2 | shooter Science Fiction | image | subject | label | |
| Half-Life | Valve | ? | Dreamcast | shooter | image | | label | |
| Half-Life | Valve | 1999 | Mac OS Classic | shooter Science Fiction | | | label | |
| Half-Life | Valve | 1998 | Windows | shooter Science Fiction | image | subject | label | |
| Half-Life | Valve | 2013 | Linux | shooter Science Fiction | | | label | |
| Half-Life 2 | Valve | 2004 | Windows | shooter Science Fiction | image | subject | label | |
| Half-Life 2 | Valve | ? | Linux | shooter Science Fiction | | | label | |
| Half-Life 2 | Valve | 2005 | Xbox | shooter Science Fiction | image | subject | label | |
| Half-Life 2 | Valve;Electronic Arts | 2007 | PS3 | shooter Science Fiction | | | label | |
| Half-Life 2 | Valve | 2007 | X360 | shooter Science Fiction | | | label | |
| Half-Life 2 | Valve | 2010 | Mac OS X | shooter Science Fiction | image | | label | |
| Half-Life 2: Episode One | Valve | 2006 | X360 | shooter Science Fiction | | | label | |
| Half-Life 2: Episode One | Valve | 2006 | PS3 | shooter Science Fiction | | | label | |
| Half-Life 2: Episode One | Valve | 2013 | Linux | shooter Science Fiction | | | label | |
| Half-Life 2: Episode One | Valve | 2006 | Windows | shooter Science Fiction | image | | label | |
| Half-Life 2: Episode One | Valve | 2010 | Mac OS X | shooter Science Fiction | | | label | |
| Half-Life 2: Episode Two | Valve | 2007 | X360 | shooter Science Fiction | image | | label | |
| Half-Life 2: Episode Two | Valve | 2007 | PS3 | shooter Science Fiction | image | | label | |
| Half-Life 2: Episode Two | Valve | 2007 | Windows | shooter Science Fiction | image | subject | label | |
| Half-Life 2: Episode Two | Valve | 2010 | Mac OS X | shooter Science Fiction | image | | label | |
| Half-Life 2: Episode Two | Valve | 2013 | Linux | shooter Science Fiction | | | label | |
| Half-Life: Alyx | Valve | 2020 | Windows | shooter adventure puzzle Fantasy | image | subject | label | |
| Half-Life: Blue Shift | Gearbox Software | 2001 | Windows | action/reflex shooter Science Fiction | image | subject | label | |
| Half-Life: Blue Shift | Valve | 2013 | Linux | action/reflex shooter Science Fiction | | | label | |
| Half-Life: Opposing Force | Gearbox Software | 1999 | Windows | action/reflex shooter Science Fiction | image | subject | label | |
| Half-Life: Opposing Force | Gearbox Software;Valve | 2013 | Linux | action/reflex shooter Science Fiction | | | label | |
| Half-Life: Source | Valve | 2013 | Linux | shooter Science Fiction | | | label | |
| Portal | Valve | 2007 | Windows | action/reflex puzzle Science Fiction | image | subject | label | |
| Portal | Valve | 2007 | PS3 | action/reflex puzzle Science Fiction | | | label | |
| Portal | Valve | 2010 | Mac OS X | action/reflex puzzle Science Fiction | | | label | |
| Portal | Valve | 2013 | Linux | action/reflex puzzle Science Fiction | | | label | |
| Portal | Aperture Labratories | 2017 | Apple II E | action/reflex platformer puzzle Science Fiction | | | label | |
| Portal - Still Alive | Valve | 2008 | X360 | action/reflex puzzle Science Fiction | image | | label | |
| Portal 2 | Valve | 2011 | Windows | action/reflex puzzle Science Fiction | image | subject | label | |
| Portal 2 | Valve | 2011 | Mac OS X | action/reflex puzzle Science Fiction | image | | label | |
| Portal 2 | Valve | 2011 | X360 | action/reflex puzzle Science Fiction | image | | label | |
| Portal 2 | Valve | 2011 | PS3 | action/reflex puzzle Science Fiction | image | | label | |
| Portal 2 | Valve | 2014 | Linux | action/reflex puzzle Science Fiction | | | label | |
| Portal: Companion Collection | Valve | 2022 | Switch | action/reflex puzzle Science Fiction | | | label | |
| Ricochet | Valve | 2013 | Linux | Science Fiction | | | label | |
