Map modifiers¶

A map packed in the Book of the Halls can be enchanted with runes for modifiers. Each modifier gives a reward, most of them with a danger attached. Higher-level maps roll stronger modifiers.

Use runes to enchant the halls with modifiers and increase rewards

Grades and runes¶

A map's grade follows the number of its modifiers; a map holds at most 6. A modifier family appears only once on a map, and some modifiers need a room type or a boss on the map.

Grade	Modifiers
Normal map	0
Magic map	1–2
Rare map	3–6

Runes on a map¶

Runes are applied as on items: right-click the rune in the bag, then click the map in the book. They act only on a packed map before it is launched. A rune that can't act on the map, and any other rune, is refused and not spent.

	Rune	On a map
	Rune of Spark	Adds the first modifier to a normal map.
	Rune of Weaving	Adds a second modifier to a magic map with one.
	Rune of Change	Rerolls a magic map's modifiers into one or two new ones.
	Great Rune of the Jarl	Adds a modifier to a magic map.
	Great Rune of Ascent	Adds a modifier to a rare map, up to 6.
	Great Rune of Oblivion	Removes one random modifier.
	Great Rune of Fate	Rerolls the numbers of every modifier within its tier.

How a modifier rolls¶

A new modifier is picked by weight among those that fit the map. Its tier is then picked among the tiers the map's level reaches, by the tier weights below, and it gets a roll from 0 to 1: its numbers lie between the next tier's and its own tier's, by the roll (for the lowest tier, between 80% of its numbers and its numbers). Counts such as item racks or rune mines are rounded to whole numbers; stars and bosses take their tier's number.

Tier	Map level	Tier weight
T1	181 (Ashlands)	1
T2	97 (Plains)	2
T3	43 (Swamp)	3
T4	19 (Black Forest)	4
T5	0 (Meadows)	5

Modifiers¶

Armed Watch¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	+3 item racks in the rooms	+3 elite guards
T2	97	2	+2–3 item racks in the rooms	+2–3 elite guards
T3	43	3	+2 item racks in the rooms	+2 elite guards
T4	19	4	+1–2 item racks in the rooms	+1–2 elite guards
T5	0	5	+1 item racks in the rooms	+1 elite guards

Heavy Coffers¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	50–60% more items from chests	enemies have 42–50% more health
T2	97	2	40–50% more items from chests	enemies have 35–42% more health
T3	43	3	30–40% more items from chests	enemies have 27–35% more health
T4	19	4	20–30% more items from chests	enemies have 20–27% more health
T5	0	5	16–20% more items from chests	enemies have 16–20% more health

Gilded Peril¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	42–50% increased rarity of items found	enemies deal 34–40% more damage
T2	97	2	35–42% increased rarity of items found	enemies deal 28–34% more damage
T3	43	3	27–35% increased rarity of items found	enemies deal 22–28% more damage
T4	19	4	20–27% increased rarity of items found	enemies deal 16–22% more damage
T5	0	5	16–20% increased rarity of items found	enemies deal 12.8–16% more damage

Restless Stone¶

Weight 1; needs an Ore Hall on the map.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	+3 ore veins in the ore halls	rockfalls in the fight rooms
T2	97	2	+2–3 ore veins in the ore halls	rockfalls in the fight rooms
T3	43	3	+2 ore veins in the ore halls	rockfalls in the fight rooms
T4	19	4	+1–2 ore veins in the ore halls	rockfalls in the fight rooms
T5	0	5	+1 ore veins in the ore halls	rockfalls in the fight rooms

Grave Spoils¶

Weight 1; needs a Burial Hall on the map.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	12–15% chance of extra equipment from fitting kills	undead groups 42–50% stronger
T2	97	2	10–12% chance of extra equipment from fitting kills	undead groups 35–42% stronger
T3	43	3	8–10% chance of extra equipment from fitting kills	undead groups 27–35% stronger
T4	19	4	6–8% chance of extra equipment from fitting kills	undead groups 20–27% stronger
T5	0	5	4.8–6% chance of extra equipment from fitting kills	undead groups 16–20% stronger

Runed Hoard¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	65–80% more gold	3–4 rune mines in every fight room
T2	97	2	50–65% more gold	3 rune mines in every fight room
T3	43	3	40–50% more gold	2–3 rune mines in every fight room
T4	19	4	30–40% more gold	2 rune mines in every fight room
T5	0	5	24–30% more gold	2 rune mines in every fight room

Rising Host¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	+2 stars to every enemy, bosses too (more loot from each)	—
T2	97	2	+2 stars to every enemy, bosses too (more loot from each)	—
T3	43	3	+1 stars to every enemy, bosses too (more loot from each)	—
T4	19	4	+1 stars to every enemy, bosses too (more loot from each)	—
T5	0	5	+1 stars to every enemy, bosses too (more loot from each)	—

Crowned Guardian¶

Weight 0.8; needs a final boss on the map.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	+3 stars to the final boss	—
T2	97	2	+2 stars to the final boss	—
T3	43	3	+2 stars to the final boss	—
T4	19	4	+1 stars to the final boss	—
T5	0	5	+1 stars to the final boss	—

Spoils of the Fallen¶

Weight 1.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	30–40% more items and 40–50% more rarity from kills	—
T2	97	2	22–30% more items and 30–40% more rarity from kills	—
T3	43	3	16–22% more items and 22–30% more rarity from kills	—
T4	19	4	10–16% more items and 15–22% more rarity from kills	—
T5	0	5	8–10% more items and 12–15% more rarity from kills	—

Twin Thrones¶

Weight 0.4; needs a boss room on the map.

Tier	Map level	Tier weight	Reward	Danger
T1	181	1	+2 bosses in every boss room	—
T2	97	2	+1 bosses in every boss room	—
T3	43	3	+1 bosses in every boss room	—
T4	19	4	+1 bosses in every boss room	—
T5	0	5	+1 bosses in every boss room	—

Fated Treasure¶

Weight 0.03.

Tier	Map level	Tier weight	Reward	Danger
T1	0	1	Every boss and unique enemy drops a unique item	—