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 Beetle Juice debuff from the  flying beetles. This is equal to.
 * 6) If a character is weakened 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 and is increased by various values, listed below.

The following movement speed increases exist:
 * , which give + 0.3 per stack.
 * , which give + 0.14 per stack.
 * , which give + 0.172 per stack while sprinting.
 * If the is active, it gives + 0.2.
 * If the character is in range of any amount of friendly, they get + 0.3.
 * If the character is cloaked by the, they get + 0.4.
 * If the character has the buff, they get + 0.5.
 * If the character is affected by, they get + 0.5.

Decreases
The decrease multiplier starts at 1 and is increased by various values listed below.

The following movement speed decreases exist:
 * If a character was hit recently by the, this modifier is increased by + 0.6.
 * If a character was hit recently 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 ClayGoo debuff, which increases the modifier by + 0.5.
 * If the character is in range of any amount of or was hit recently by an attack from a Perfected Elite (including characters who got it from  or ), this modifier is increased by + 0.5.
 * If the character was damaged recently by,  , or the  fire fields, the modifier is increased by + 0.5. None of these sources, or the following ones, stack with each other.
 * The and  will do the same to any characters targeted by their detonating-circle attacks.
 * The does the same to itself while it fires its cannon.