On the Subject of The Deck of Many Things

Rulebook for a mixup game

• Remember: A=1, J=11, Q=12, K=13
• The suits in grid/hex layouts can be search Ctrl+f

The goal of the module is to find any valid card and submit it. There is a guarantee that there exists one among the first 15, but you are not required to submit the first valid card.

Determine a Card’s Deck

Condition	Deck	Change
Regular card	Standard	No change
Inverted color	Metropolitan	Rank is correct
11+	Maritime	Suit is correct
Hollow	Arctic	-
Other color	Tropical	-
Weird suit	Oasis	-
No card suit is visible.	Celestial	Always incorrect

Determine Starting Valid Ranks

These rules determine what card ranks are valid for submission, note however that these may be modified by celestial cards.

Determine Starting Valid Suits

This table determines what suits are considered valid. Remember that this may not be the case for later stages, as celestial cards may modify them

	First Card Rank
First Card Deck	2–6	7–9	10-A
Standard Deck	♦/♠	♥/♣	♠/♣
Metropolitan Deck	♦/♥	♠/♥	♣/♦
Maritime Deck	♥/♠	♣/♦	♣/♥
Arctic Deck	♦/♠	♦/♥	♣/♠
Tropical Deck	♠/♣	♥/♦	♥/♣
Oasis Deck	♦/♠	♦/♥	♣/♦
Celestial Deck	♠

Calculate a Card’s Value

Metropolitan Deck

Inverted suit color

Even batteries	Lit indicators % 4
	0	1	2	3
♣	♥	♣	♠	♦
♦	♣	♥	♦	♠
♥	♦	♠	♥	♣
♠	♠	♦	♣	♥

Odd batteries	Lit indicators % 4
	0	1	2	3
♣	♦	♠	♣	♥
♦	♠	♦	♥	♣
♥	♣	♥	♠	♦
♠	♥	♣	♦	♠

Maritime Deck

Number on card > 10

1. Rank * (bat# + 1)
2. If plate empty +10
3. ⌊previous / (lit# + 1)⌋
4. if Serial# contains vowel subtract the cards rank
5. Mod 13 for the rank (0 ≡ 13)

Tropical Deck

Non red/black color

Color	Direction
Blue	NW
Pink	W
Purple	SW

Color	Direction
Green	NE
Yellow	E
Orange	SE

Arctic Deck

Hollow suit

Nº batteries	🡆by Sum# % 13
	0	1	2	3	4	5	6	7	8	9	10	11	12
0	2	10	Q	K	5	6	J	7	8	3	9	4	A
1–2	9	Q	2	5	4	A	7	K	3	J	8	10	6
3–4	Q	6	10	9	4	2	J	K	8	7	A	3	5
5+	10	J	Q	K	3	9	2	8	A	7	5	6	4

Nº Ports	🡄by Sum#
0	♣	♠	♦	♥
1–2	♥	♦	♠	♣
3–4	♠	♥	♣	♦
5+	♥	♣	♦	♠

Oasis Deck

Weird suit

Look up Rank*Multiplier in the table on the right.

Suit	Multiplier
	Batteries
	Ports
	Indicators
	Sum#

	-0	-1	-2	-3	-4	-5	-6	-7	-8	-9
0-	4S	4C	7S	QD	9S	2H	3D	7H	AH	KC
1-	6D	9D	5H	3H	AC	3S	8H	8C	8D	2C
2-	2S	6H	JD	5D	5S	10C	KH	7C	KC	AD
3-	KS	10D	KD	QH	QS	4D	6C	2D	10H	JS
4-	8S	JH	JC	6S	9C	3C	AS	4H	10S	5C
5-	9H	7D

The Celestial deck modifies what cards are valid and not. The new rules apply to the cards following the celestial card and can be modified, by other celestial cards

Nº	Name	Effects
0	The Fool	Modules > starting time	All ranks valid
		Otherwise	Only 2 valid
I	The Magician	Find SHDC in serial#. If found correspondingly ♠♥♦♣ are valid. If none are found all suits are valid.
II	The High Priestess	Bomb has all of: AA, D, lit, unlit, plate	All suits are valid.
		Otherwise	Only ♣ are valid.
III	The Empress	Only JQKA and ♥♦ are valid.
IV	The Emperor	Only JQKA and ♠♣ are valid.
V	The Hierophant	Saturday or Sunday	All suits are valid
		Otherwise	Only ♦ are valid
VI	The Lovers	Only ♥ are valid.
VII	The Chariot	Starting minutes % 7 == 0	All suits valid
		Number of modules % 7 == 0
		Sum# % 7 == 0
		Otherwise	Only ♠ are valid
VIII	Justice	Sum# even	Odd ranks valid
		Otherwise	Even ranks valid
IX	The Hermit	This is first Celestial Card.	All ranks valid.
		Otherwise	Only 8J valid

Nº	Name	Effects
X	Wheel of Fortune	Use the Sum# % 22 -th Celestial Deck card. If 10 all ranks and suits are valid
XI	Strength	Starting minutes >= 30	All Ranks are valid
		Modules >= 20
		Otherwise	Only QA valid
XII	The Hanged Man	Only 689 are valid.
XIII	Death	Invert all rules (NOTE: This may result in not having any valid suits or ranks)
XIV	Temperance	Bomb has needy	All suits valid
		Otherwise	Only ♠
XV	The Devil	Only 6 and ♥♦ are valid.
XVI	The Tower	Ranks with value < modules on bomb
XVII	The Star	First card was Celestial	All suits valid
		Two suits of same color initially valid	Opposite color valid
		Otherwise	Initial black suit is valid.
XVIII	The Moon	Bomb has "The Moon"	All ranks valid
		Otherwise	only QA valid
XIX	The Sun	Bomb has "The Sun"	All ranks valid
		Otherwise	Only KA valid
XX	Judgement	This is the 29th card or later	All ranks valid
		Otherwise	Only 10 valid
XXI	The World	Ranks appearing in serial# are valid. In addition 1 for A and 0 for 10