The Tower SP

The Tower SP is a sequel/port of SimTower for the Nintendo DS. Surprisingly, it was translated and sold in the USA after The Tower DS was released in Japan. The Tower DS had better design and took advantage of the 2 screens and even had some good touch screen controls. Both The Tower DS and The Tower SP were made by Vivarium, Yoot Saito's newest company. The English version was published by DigiToys, the same company that later published Yoot Tower for iPad.

Differences with SimTower
In The Tower SP, perhaps due to the limitations of the Game Boy Advance's system, the "Tower" status (the highest available tower rating) is obtained with a population of 2,000 people; a goal which is quite hard considering the height limit for the building is 50 floors(35 floors for the commercial tower) and a certain foundation width. The width is slowly expanded as Yama gets deregulation for the roads and buildings surrounding the player's Tower. However, reaching that population is not enough. The "Tower" status is only awarded when a wedding takes place in the building, which only occurs when a cathedral is constructed at the maximum height, the cathedral can be reached without any stress, the cathedral is full, and when there are 2,000 people in the building at that moment. Achieving a "Tower" status with the Office Building unlocks the possibility of building a "Commercial Building". The site permits construction of a higher lobby at the ground floor, but doesn't permit the construction of building offices, condominiums, medical centers, security offices, nor recycling centers, allows up to 3 cinemas in the building (whereas the Office Building only allowed one), as well as a spa with water from a hot spring and hotel suites (once the appropriate star rating is reached). As such, building built in this mode may resemble a mall-hotel hybrid, depending on the player's design. Other features are taken from Yoot Tower, while some are new. Restrooms must be built; security must check the player's tower nightly; housekeeping cleans offices weekly, and cockroach infestation now has three phases: one (which requires a bug bomb), two (which requires a costly exterminator), and three (which condemns the infested facility). Like Yoot Tower, the player must use different shops and stores to satisfy tenants and visitors.