All challenge runs start on pressing OK to Wizards first notification/quest box, and end when the title of the challenge has been achieved.

1. For item based runs the item must be placed in the inventory for the timer to stop.
2. For biome based challenges FPS Counter Must have the target biome loaded and the player must be landed on the ground. All challenges are Glitchless and can be Random Seed or Set Seed Categories.
3. If a run is possible in older versions of the game like for example "Dig to Hell" and "Fly to Forgotten Sky" then players are free to do so as long as the old version of the game is unmodified (example being updates before 9.0.0 which use the V1{old} terrain).
4. Character file modification in Challenge runs is not allowed as it is NOT a glitchless category.