"The Arcane System sometimes awards tasks called “quests” for Guardians to complete. These tasks can range from taking down an Usurpation Zone to helping a child find their lost dog. Any task that helps to protect or restore hope to humanity is eligible to be a quest, however, know that the System does not make everything into a quest. There is much debate as to how the System decides what should and shouldn’t be one, but that is a topic for another time. What you need to know now is that quests are always given an estimated difficulty which represents the System’s estimation of the danger or complexity of the task at the time the quest is offered. This difficulty level is not concrete, as circumstances can always change. The System can’t read what might happen in the future, after all." Selene ch.27
Quests do not award experience, only points.
The point value of a quest is based on the tier of the person completing the quest – a higher tier gets more points – and the importance of a quest, not its difficulty, although the points awarded are capped based on the difficulty.
There is no penalty for failing a quest, except for not getting the reward.
All MGs are offered “daily, weekly, and monthly” quests. We do not know exactly what these are. Daily quests reward 10 points each, weekly quests reward 100 points each, and monthly quests reward 250 points each. MGs are offered three daily quests each day, a single weekly quest each week and a single monthly quest each month (source: ch.36).
Mika provided the following chart in Point Madness.
QUEST REWARDS MAXIMUM REWARD VALUES | ||||||
Tier | Easy | Very Easy | Medum | Hard | Very Hard | Death Wish |
1 | 50 | 100 | 250 | 400 | 500 | 1000 |
2 | 500 | 1000 | 2500 | 4000 | 5000 | 10000 |
3 | 2000 | 4000 | 10000 | 16000 | 20000 | 40000 |
4 | 8000 | 16000 | 40000 | 64000 | 80000 | 160000 |
5 | 24000 | 64000 | 160000 | 256000 | 320000 | 640000 |
6 | 96000 | 256000 | 640000 | 1024000 | 1280000 | 2560000 |
Mika: Note: Large jump between tier 1 and 2 reward values is due to Soul Gem Maturation. Also, these are maximum reward values, not minimum or guaranteed.
(However, bonus quest rewards (like the 452 points added on to Mai's Death Wish) and sub quests (the arachnomantis added to the mana generator quest) can add to quest values.)