デザインタウン：未開地 (Design Town: Wilderness) is a standalone expansion for Design Town (a.k.a. Flip City), a deck-building game in which you have no hand at all, but instead play cards directly from the top of your deck.

A turn consists of two phases: card playing and building. Players play cards directly from the top of their deck and may choose to continue unless they have three cry-face icons in play, which ends their turn immediately. When they choose to stop, they move to the building phase.

During the building phase, a player can use the coins gained from their previously played cards to buy a new card or to upgrade a card in their personal discard pile. To upgrade a card, pay the cost and flip it over; upgraded cards remain in the discard pile.

Since all cards in this game are double-sided, be careful not to flip them over accidentally when placing cards into your discard pile or when shuffling your deck.

Whenever a player gains eight or more VP during a single card playing phase, the player wins immediately!