TGMGUIDEBOOKTHE GRAND MAFIA
The guidebook / Coalition strategy

BUILD YOUR COALITION

Choose between three coalitions, improve their booths, and invest carefully. Your active coalition controls its seals, but displayed-item stats can keep helping you wherever you are.

3 coalitions24h switch cooldown2 booths open at first25% starting booth effect
Choose, then commit

THREE COALITIONS, ONE ACTIVE

Players can choose from three coalitions. After switching, there is a 24-hour cooldown before you can switch again. A switch normally costs one coalition ticket.

Free switch

CHECK BEFORE USING A TICKET

A free switch sometimes becomes available, but its reset timing has not been confirmed. Always check the switch screen first so you do not spend a ticket unnecessarily.

What stays active

SEALS AND DISPLAY STATS WORK DIFFERENTLY

Active coalition only

COALITION SEALS

Seals are active only for the coalition you have joined.

Always active

DISPLAYED-ITEM STATS

The stat bonuses from items displayed in booths remain active even when the booth belongs to another coalition.

Important: every booth begins at Level 1, so its displayed-item bonuses start at only 25% of their full value.
From two booths to five

HOW TO OPEN EVERY BOOTH

  1. 02

    OPEN AT THE START

    Each coalition begins with two booths available.

  2. +01

    IMPROVE THE RELATIONSHIP

    Raise your relationship with the coalition to open one additional booth.

  3. +02

    COMPLETE COALITION INVESTMENTS

    Two more booths can be opened through coalition investments, bringing the total to five.

Ferro coalition investment tree showing Coalition Factory Speed I, Coalition Factory Limit I, and Ferro Booth Expansion I.
Ferro investment tree: both factory investments lead toward the first booth expansion.
Converted from the booth-level screen

BOOTH BUFF MULTIPLIERS

Raising a booth increases the additional attributes of its displayed treasures. Level 5 unlocks the full effect.

Booth levelBuff multiplierIncrease from previous
125%Starting level
237.5%+12.5 percentage points
350%+12.5 percentage points
475%+25 percentage points
5100%+25 percentage points
Known Coalition Family Currency costs

FIRST 10 INVESTMENT LEVELS

The source list is missing the costs for levels 5 and 10. Those entries remain unknown instead of being estimated.

Investment levelCurrency costKnown running total
1 / 10149149
2 / 10171320
3 / 10197517
4 / 10226743
5 / 10UnknownAt least 743
6 / 102971,040
7 / 103411,381
8 / 103911,772
9 / 104492,221
10 / 10UnknownAt least 2,221
Known subtotal2,221 - excludes Levels 5 and 10
Known track subtotal2,221Plus the unknown Level 5 and Level 10 costs
First booth expansion4,000Documented unlock price
Documented minimum6,2212,221 + 4,000; not the full amount required
If both 10-level branches are required

THE KNOWN MINIMUM WOULD BE 8,442

The Ferro screen shows two 10-level investments before Booth Expansion I. If the same cost schedule applies to both and both must reach 10/10, the known calculation is (2 × 2,221) + 4,000 = 8,442. This still excludes the unknown Level 5 and Level 10 price on each branch, so it is not the full unlock cost.

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