Most chambers in Hades (game) has one or more pickups as rewards to the player upon clearing them.
Reward for Regular Chamber[ | ]
A regular room's reward can be of either MetaProgress or RunProgress category. The MetaProgress category consists of 
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. The RunProgress category consists of Centaur Heart, Obol, Pom of Power, Daedalus Hammer, Boons from Olympian Gods, and Trial of the Gods.
Whether a room's reward will be MetaProgress or RunProgress is determined by this formula (simplified for clarity):
metaProgressChance = targetMetaRewardsRatio + MetaRewardsAdjustSpeed × (targetMetaRewardsRatio - currentMetaProgressRatio)
targetMetaRewardsRatio[ | ]
This value expresses how much the game wants the player to have a certain percentage of MetaProgress. The value is different for each Biome:
| targetMetaRewardsRatio | Value |
|---|---|
| Tartarus | 0.45 |
| Asphodel | 0.4 |
| Elysium | 0.33 |
The wings of Styx cannot have MetaProgress as rewards.
MetaRewardsAdjustSpeed[ | ]
A factor to increase the impact of getting each room's reward. The value of it is 10, which is defined in Content/Scripts/RunManager.lua
currentMetaProgressRatio[ | ]
To measure how many rooms' MetaProgress rewards the player has received. It is calculated with MetaProgressCount / ChamberCount. Only MetaProgress from room reward counts as MetaProgressCount. Infernal Trove, Darkness from Charon's Shop, or Well of Charon don't count.
Full Example[ | ]
- The 1st chamber's reward is enforced to be RunProgress
- To calculate the 2nd chamber's reward,
currentMetaProgressRatio = 0 / 1 = 0.metaProgressChance = 0.45 + 10 × (0.45 - 0) = 4.95 > 100%. This means the 2nd chamber's reward must be MetaProgress - For the 3rd room,
currentMetaProgressRatio = 1 / 2 = 0.5.metaProgressChance = 0.45 + 10 × (0.45 - 0.5) = -0.05 < 0. The reward must be RunProgress. - For the 4th room,
currentMetaProgressRatio = 1 / 3 = 0.33.metaProgressChance = 0.45 + 10 × (0.45 - 0.33) = 1.65 > 100%. The reward must be MetaProgress. - For the 5th room,
currentMetaProgressRatio = 2 / 4 = 0.5, the same as the 3rd room. The reward must be RunProgress. - For the 6th room,
currentMetaProgressRatio = 2 / 5 = 0.4,metaProgressChance = 0.45 + 10 × (0.45 - 0.4) = 0.95 = 95%. The reward is highly likely to be MetaProgress, but still has a chance of 5% to be RunProgress.
Counter Example[ | ]
According to the Full Example above, the 2nd chamber's reward must be MetaProgress. But it has been witnessed that the 2nd chamber's reward can be a God's boon, which is RunProgress.
Special Reward[ | ]
Some chambers' rewards are constant / less randomized. They don't conform to the formula above and cannot be rerolled by Fated Authority.
Landing Chamber[ | ]
When a new run is started, the first chamber that Zagreus lands in has an enforced reward before the room is cleared. It's either a Daedalus Hammer or a Boon from an Olympian God except Hermes.
Mini-boss Chamber[ | ]
The reward in a mini-boss chamber is enforced to be a Boon from an Olympian God.
Boss Chamber[ | ]
The reward in a Boss Chamber is either a bounty, or a large amount of Darkness if the bounty for the current weapon & current heat level is already acquired. If it is Darkness, it counts as MetaProgressCount.
Tips[ | ]
Collect Bounties for More RunProgress[ | ]
If a boss room drops bounty, it doesn't count as MetaProgress. Thus it'll make future rooms more likely to have MetaProgress rewards. But after the bounty is claimed, the room will have a Darkness reward, which counts as MetaProgress.
Prefer Non-boon Reward in Erebus[ | ]
The calculation of MetaProgressRatio only counts number of rooms. One pickup of Pom of Power / Obols / Centaur Heart in Erebus gives double the amount of its regular version, but only counts as one non-MetaProgress. But picking up a boon in Erebus is still just one boon.
On the other hand, losing the challenge of Erebus also counts as one non-MetaProgress.