Why games can cause discomfort
Some people feel dizzy, nauseated, tired or headachy after playing certain games, particularly fast first-person ones or those in virtual reality. The exact causes are not fully settled, but a commonly offered explanation is a mismatch between senses: the eyes report movement while the inner ear, which senses balance, reports that the body is sitting still. Other contributors can include a narrow field of view, low or unstable frame rate, and visual effects that move the whole image.
Reactions vary a great deal. Some players never notice anything; others need to stop after a few minutes. Susceptibility can also change with tiredness, illness or time since the last session. If symptoms are strong or persistent, a doctor is the right person to ask. This article only describes game design options.
Comfort settings let players tune the elements most associated with discomfort. They are an accessibility feature because, without them, some people simply cannot play.
Camera options
Field of view
Field of view, or FOV, is how wide a slice of the world the camera shows. Many players find a wider view more comfortable in first-person games, because it is closer to how vision works and reduces the tunnel feeling. A slider lets each player find a value that suits them. The tradeoff is that a very wide view can stretch objects at the edges and may cost performance, so a limit and a preview help.
Head bob and camera sway
Head bob mimics the up-and-down motion of walking. Some players like the sense of weight; others find it a major source of discomfort. A toggle or an intensity slider is a simple fix. The same applies to camera sway when running, breathing effects when aiming, and the tilt that happens when turning.
Camera shake
Screen shake can make an explosion feel powerful, but it moves the entire image, which is one of the more common triggers. A strength slider that goes down to zero allows players to keep other impact effects such as sound and particle effects without the shaking.
Motion blur and similar effects
Motion blur, depth of field, film grain and chromatic aberration are stylistic effects. Some players find them blurry or unsettling, so individual toggles are valuable. These are also relevant to the broader topic of graphics settings, where players often disable effects for performance reasons too.
Camera control speed and smoothing
Mouse smoothing, acceleration and slow camera turn rates can feel disorienting. Options for sensitivity, inversion and turn speed let players find a setting where the view responds in a predictable way. Snap turning, which rotates the view in fixed steps instead of continuously, is common in virtual reality.
Fixed reference points
Some players feel better when there is something that does not move relative to them, such as a cockpit frame, a visible nose, a crosshair or a static dot in the center. A toggle for such a reference point can help. In third-person games, a fixed or less aggressive camera follow can have a similar effect.
Movement options
In virtual reality especially, how the player moves matters a great deal.
- Teleport movement jumps the player to a chosen spot, avoiding the continuous gliding that is a common trigger.
- Vignette darkens the edges of the view while moving, narrowing what the eyes see in motion. Strength should be adjustable.
- Snap turning as noted above, with a choice of angle.
- Seated and standing modes, so the game works for people with different mobility or comfort preferences.
- Speed settings for walking and acceleration.
Developers who build for virtual reality headsets typically treat comfort as a core design concern and often include these options by default. More general movement-related choices, such as sprint toggles, can also help players who tire easily.
Frame rate and performance
A stable frame rate matters. Frequent drops or very low rates can make motion look jerky and add to discomfort. Offering a performance mode, a frame rate cap and clear explanations of what each graphics option costs lets players choose smoothness over visual detail. Related technical topics, such as what causes lag and how it is measured, are covered in performance profiling.
Flashing, patterns and photosensitivity
A separate but related safety concern is photosensitivity. For some people, rapidly flashing lights or certain high-contrast repeating patterns can trigger seizures. Because this is a health matter, designers should follow established guidelines on flash rates and provide warnings at the start of the game and options to reduce or disable flashing effects. Players with a history of seizures should speak with a medical professional before playing games that carry such warnings.
Helping yourself as a player
Some general habits may help, although none is guaranteed to work for everyone.
- Start with short sessions and stop at the first sign of discomfort instead of pushing through.
- Play in a well-lit room and sit at a comfortable distance from the screen.
- Try the comfort options before you begin. Turn off head bob, shake and blur first, and widen the field of view.
- Ensure the game runs smoothly on your hardware.
- Check store pages and settings descriptions for the options you need, and look at refund policies where you can.
Designing comfort options well
For developers, a few points repeat across guidance:
- Put comfort settings in the first-run menu or make them easy to reach.
- Provide a preview so players can see the result of a change.
- Use sliders with a true zero where possible, not only on and off.
- Describe what each option does in plain words.
- Test with people who are sensitive to motion, since developers who play all day often build up tolerance and may not notice problems.