Movement Speed

The Movement Speed of a character is determined determined by four parts:
 * 1) The body stats
 * 2) Movement speed increases
 * 3) Movement speed slows
 * 4) Additional modifiers
 * 5) The stacking debuff from the floating bugs created by the Beetle Queen. This is called the BeetleJuice Debuff. This is equal to.
 * 6) If a character is weakened by REX, 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 increased by various values, listed below.

The following movement speed increases exist:
 * , which give 0.3 + 0.3 per stack
 * , which give 0.14 + 0.14 per stack
 * , which give 0.207 + 0.138 per stack.
 * 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.

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 Clay Dunestrider, going outside of bounds in the Abandoned Aqueduct, jumping through the waterfall (or rather clay goo fall) in the Aqueduct, and the boop from Clay Templar all apply the ClayGoo debuff, which increase the modifier by 0.5.
 * The increases this modifier by 1 if the character is in its area of effect.
 * The Huntress' Arrow Rain and the Engineer's Carbonizer turret have the damage type SlowOnHit. This increases the modifier by 0.5 and do not stack with each other.