Traps

Traps are items that can be placed on the ground and they are triggered by anything that moves over them.

Arming

Traps can only be placed while out of combat. Arming them takes 10 seconds, or only 3 seconds with Trap Expert.

To place a trap, the player needs some points in the traps skill, the amount depending on the trap being used. Placing traps within the sight of friendly or neutral NPCs may provoke hostilities. No enemies are directly seen placing traps, but there are traps placed all around the Underrail nevertheless.

Disarming

A trap being disarmed and recovered.

Traps can only be disarmed while out of combat. Traps must be detected before a disarming attempt can be made. Disarming traps takes 10 seconds just like arming them does.

When disarming a trap, if your traps skill is 20 points above the trap disarming difficulty, or if the trap is your own, you receive it as an item.[1][2] Otherwise, you cannot reuse the disarmed trap. If your traps skill is 10 points below the trap disarming difficulty, disarming attempt may lead to critical failure and trigger the trap.

Some enemies may also try to disarm your traps if they can detect them.

Detection

Trap detection chance is based on Detection or both detection and traps skill. There are two formulas for trap detection value, the greater of the two for the particular character is used:

• "Pure detection" equals 75% of your regular detection value.
• "Hybrid detection" equals 50% of your regular detection value plus 75% of your effective trap skill.

Hence characters with high traps skill also have better chance of detecting traps. The player can try to disarm any traps that have been detected - or trigger them with grenades or other AoE weapons. Your character will automatically avoid walking on traps that have been detected.

The detection difficulty for traps you place is based on your traps skill and modified by the trap's detection difficulty and other modifiers like trap expert feat. Enemies never detect or avoid traps that are pre-placed into the world^Verify, only player traps.