Movement Speed

The Movement Speed of a character is determined determined by four parts:
 * 1) The body stats
 * 2) Movement speed bonuses
 * 3) Movement speed reduction
 * 4) Additional modifiers
 * 5) The stacking  debuff from the  flying beetles. This is equal to.
 * 6) If a character is  by, their movement speed is multiplied by 0.6.
 * 7) The  gives either a buff, or, depending on the affliction count, a debuff.
 * 8) * If the Tonic is active, the movement speed is multiplied by 1.3.
 * 9) * Otherwise, the movement speed is multiplied by

The final movement speed of a character is

Body Stats
The body stats of a character are the base movement speed (7 for all Survivors) plus the level movement speed (0 for all characters). All of this is increased by the sprint multiplier if the character is sprinting. The sprint multiplier is 1.45 or +45%.

Increases
The increase multiplier starts at 1.0 and is increased by various values, listed below.

The following movement speed increases exist:
 * , which gives + 0.3 per stack while is active.
 * , which gives + 0.14 per stack.
 * , which gives + 0.172 per stack while sprinting.
 * , which gives + 0.2 while are active.
 * Friendly give + 0.3 from the buff.
 * , which gives + 0.4 while is active.
 * and, which give + 0.5 from the / buffs, respectively (these do not stack with each other).

Decreases
The decrease multiplier starts at 1.0 and is increased by various values listed below.

The following movement speed decreases exist:
 * If a character is by the, this modifier is increased by + 0.6.
 * If a character is by  or by an attack from a Glacial or Celestine Elite (including characters who got it from,  or ), this modifier is increased by + 0.8.
 * The pots in the Abandoned Aqueduct and from the, going out of bounds in the Abandoned Aqueduct, jumping through the waterfall (or rather tar fall) in the Aqueduct, and the close-range attack of the all apply the  debuff, which increases the modifier by + 0.5.
 * If the character is by the  or by an attack from a Perfected Elite (including characters who got it from  or ), this modifier is increased by + 0.5.
 * All the following sources targets, increasing the modifier by + 0.5. None of them stack with each other:
 * slows targets on hit.
 * slows targets on hit.
 * fire fields slow targets on hit.
 * and slow any characters targeted by their detonating-circle attacks.
 * The slows itself while firing its cannon.