WIKI

What it is

A T.E.D.D. machine appears on the map and gives your team a challenge. Each finished challenge earns a reward crate for the team. Challenges run Rare → Epic → Legendary on one clock of about 120 seconds (Horde challenges are 120 seconds; survive windows are 40 seconds each).

Extra zombies a challenge spawns don't count toward the round.

When it appears

• On maps with a power switch, the first machine appears at the start of a round 1 to 2 rounds after the power is on.
• On maps without a power switch (Nacht der Untoten, Shi No Numa) it appears in round 3.
• After a cycle ends, the next machine comes 3 to 5 rounds later.

Use it or lose it

• A machine nobody uses leaves after 3 rounds.
• A reward crate nobody opens leaves after 2 rounds, and its rewards are lost.

XP

T.E.D.D. challenges give account XP (Account levels).