Revision as of 23:10, 27 June 2010

Skill Sneak
Modifies	Chance of being detected while sneaking
Initial level	5% + 3 x Agility
Related perks	Silent Running, Ghost, Silent Death, Thief
Related traits	Small Frame

"Quiet movement, and the ability to remain unnoticed. If successful, you will be much harder to locate. You cannot run and sneak at the same time, unless you take Silent Running perk."

Sneak is subject to many modifiers, its mechanics differ from those of Fallout1/2.

Has to be updtated with

- Sneaking:

• Sneak penalties for angle are no longer reducing the skill by a percent of total amount, but are substracting 0, 25, 50 or 75 points from it, depending on the look direction (back, back-side, front-side, front resp.).
• When the check for seeing a sneaked opponent is being done, observer's field of view is reduced (for the purpose of checking this one opponent) by 50%, 40%, 20% and 0% depending on the look direction.
• See change for a Ghost perk too.

• FOV: When your character is out of the opponents Field Of View, the sneak is automatically sucesfull.
• Minimum distance: Up to 3 hexes from opponent, your character is always visible, regardless your sneak skill.
• Bonuses:
  • Ghost perk: +30%, can increase skill above 300%.
  • Occluders: Standing behind scenery objects like barrels, tables (up to 2 hexes from them) gives you +50% bonus.
• Penalties:
  • Weight: -1% per 1Kg of the total weight of items you carry.
  • Armor:
    • Leather Armor and Leather Armor Mark II: - 25%
    • All metal armors and combat armors: -50%
    • Powered armors: Sneak is disabled.
  • Direction - direction of the opponent has big impact, basically, the area around opponent is divided into four parts, and each part modifies your sneak skill value by reducing it (not substracting) by following percentages:
    • Front: 90%
    • Front-sides: 60%
    • Back-sides: 30%
    • Back: 0%

After all bonuses and penalties have been applied, the final formula, which determines the maximum distance between the observer and the (sneaked) observed at which the latter is visible is:

20 + opponent's Perception * 3 - previously calculated skill / 6

Viewing Range

This is the summary of viewing range against sneaking character. It assumes that there are no modifiers to the sneak skill.

F - Front FS - Front Sides BS - Back Sides B - Back

Also, note that your character won't be visible when he is out of observer field of view range, which depends on Perception and look direction. Table below shows summary of FOV ranges.