Tiny Tower

The tower grows by constructing floors, which can be either residential or commercial. Residential floors house bitizens. Bitizens are chosen to work at a floor in the tower, and are otherwise considered unemployed. Commercial floors sell products, which are automatically sold, even while the player is away. There are five types of commercial floors: Food, Retail, Service, Recreational, and Creative. Each floor is decorated to resemble its real-life counterpart. Up to three products may be sold at a single floor, one per employed bitizen. All these products follow the theme of the business. With every floor, construction time is parallel to real world-time; construction time will increase as the tower gets taller. However, special VIPs can be used to speed this time up, or the player can speed it up with "Tower Bux".

In the game, there are two types of currency: coins and Tower Bux. Coins are used for the majority of purchases, often the most simple. Tower Bux are used for special functions, such as speeding up processes which would otherwise involve a waiting period. Tower Bux are not as common as coins are, and only appear randomly through active game play, or when a user purchases them with real money. Coins, on the other hand, are earned regardless of whether the player is playing or not.

Apart from just the ordinary bitizens, there are also special bitizens called VIPs, who randomly appear in the elevator during gameplay. Originally, players were forced to use a VIP as soon as it arrived, but now up to five VIPs can be stored in the lobby at any one time, and they can kept for any period of time. VIPs have special abilities such as reducing the time taken for stocking and construction, or attracting extra customers. A Big Spender VIP will select one item in the shop at random, and buy out the entire stock. They typically wear a green ensemble. A Celebrity VIP makes the first listed employee that works in the shop and is not in their dream job make that job his or her dream job. They wear a pink dress and sunglasses. A Construction Worker VIP will knock 3 hours off the construction time of the floor they are sent to. They wear a safety orange outfit and a yellow hat. A Delivery Man VIP will fully stock the floor in any shop the player chooses. They appear in an all-brown outfit. A Real Estate VIP is taken to a residential floor. They will move a bitizen into each open bed on that floor, adding up to a full room of five bitizens to the player's tower. They wear blue suits.

On February 7, 2012, NimbleBit announced that Tiny Tower had reached 10 million total downloads. Tiny Tower was released on Google Play on May 25, 2016.

NimbleBit has released spin-offs of Tiny Tower that mirror the original gameplay with themed characters and graphics, including Tiny Death Star (2013), Tiny Tower Vegas (2014), and Lego Tower (2019). Themed after the Star Wars franchise, Tiny Death Star tasks the player to expand a Death Star to collect money. In Tiny Tower Vegas, a Las Vegas-themed version, the player earns an additional in-game currency called Poker Chips that can be spent in casinos. In Lego Tower, a collaboration between NimbleBit and The Lego Group, bitizens are minifigures, and buildings are references to Lego sets from various franchises.