Groups comparison
Stealth: Line of Sight - 1983 to 2021
Player character's ability to sneak around is affected by the line of sight of NPCs.
Facing - 1992 to 2022
The direction people, vehicles, or any other things are facing affects gameplay in some manner.
Field of vision (FOV)[field of view] - 1998 to 2017
Simulates field of vision to a degree, making characters unable to see 360 degrees unless they're nonhuman, augmented or otherwise different.
Flanking - 2004 to 2018
Somehow simulates the benefits of flanking, such as giving bonuses to hit chance, greater chance of lethally wounding, etc.
Player character's ability to sneak around is affected by the line of sight of NPCs.
Facing - 1992 to 2022
The direction people, vehicles, or any other things are facing affects gameplay in some manner.
Field of vision (FOV)[field of view] - 1998 to 2017
Simulates field of vision to a degree, making characters unable to see 360 degrees unless they're nonhuman, augmented or otherwise different.
Flanking - 2004 to 2018
Somehow simulates the benefits of flanking, such as giving bonuses to hit chance, greater chance of lethally wounding, etc.
stealth-sight
facing
fieldofvision
flanking