Mayors! It’s a new week and a new challenge awaits you!🎉

Requirements: These chests will be received by players level 15+

Main reward is the Kreuzenstein Castle (5,400 coins, 2-4 energy, 2-5 pearls every 24 hours, size 10×9 can be placed anywhere)

Each chest can be opened for 9 Summer keys.

 
There are 3 ways to get Keys:

1. Complete the quests:

No timers! You can get keys during the chest offer only.
 
Stage I
Collect 18 Pencils (Stationery Shop, Upgraded Stationery Shop)
Collect 12 inks (School, Valley School)
Collect 10 Envelopes (Subway Station, Upgraded Subway Station)
 
Stage II
Collect 3 Lenses (Electronics Plant – any production) German House, Family House, Colonial House, Upgraded Colonial House, Upgraded German House)
Collect 8 Binoculars (Hostel, Upgraded Hostel)
Ask friends for 6 Neon lights
 
Stage III
Collect 7 Nails (Visit friends)
Collect 8 Wooden Beams (Cargo Port)
Collect 27 Visa (Colonial House, Upgraded Colonial House)
 
Stage IV
Collect 15 Shoes (Shoe Shop, Upgraded Shoe Shop)
Collect 18 Ties (Textile Factory – Silk, Upgraded Textile Factory – Silk)
Collect 15 Down jackets (Premium Cottage)
 
2. Collect profits from the following buildings:
 
Central Station (1 key every 24 hours)
Supertanic Liner (1 key every 24 hours)
Skyscraper “American Radiator” (2-4 keys every 24 hours)
“Figueres” House (2-4 keys every 20 hours)
Grand Lisboa Hotel (3-5 keys every 24 hours)
Reichsburg Castle (2-4 keys every 20 hours)
Round Church (1-3 keys every 16 hours)
Hungarian Parliament (2-4 keys every 20 hours)
 
3. Use the sale offer!