Tunnel Entrance
Tunnel Entrance Construction
Plot Fixed
Cost 10,000 Coin sm
3 Megabucks sm
15 Power sm
13 Water sm
Provides 300 Experience sm
Population limit:

4,000 Population Limits

No periodic benefit
Construction Instant
Tunnel Entrance Initial

Tunnel Entrances A-G are infrastructure buildings located to the northeast of the starting game zone, adjacent to the Airport Terminal. They were added during an update on 12.20.2013.[1]

Purchase of each Tunnel Entrance along with the corresponding Service Platform enables the purchase of one Subway Train.

A total of 175 assets are needed to complete construction of all seven Tunnel Entrances. This equates to 175 Megabucks sm if one were to buy every asset instead of waiting to receive them from neighbors.

Tunnel Entrance Artwork

Related Buildings

Quests and Achievements



High-Speed Subway Gate

Tunnel Entrance L1

Each of the seven Tunnel Entrances can be upgraded to a High-Speed Subway Gate, providing ??.

Requires Rewards
  • 25 Megabucks sm or 25 asset gifts
  • 30 (+15) Power sm and 28 (+15) Water sm

Asset Image Amount Price Cost
Concrete Rings Asset Concrete Rings x 5 1 Megabucks sm 5 Megabucks sm
Tech Drawing Asset Tech Drawing x 5 1 Megabucks sm 5 Megabucks sm
Cement Asset Cement x 5 1 Megabucks sm 5 Megabucks sm
T-beam Asset T-beam x 5 1 Megabucks sm 5 Megabucks sm
Hard Hat Asset Hard Hat x 5 1 Megabucks sm 5 Megabucks sm


  1. SQ Forum: Update 12.20.2013