Falling: My Favorite Mechanism

About Falling, from BoardGameGeek:

One day, a tower fell from the sky, and in Falling you are an explorer searching for valuable relics and other items in that crumbling tower. By placing special devices in the tower, you increase the income of certain resources in the game, but as the round progresses, the towers collapse and these devices are returned to the players, granting them an even larger bonus! Additional bonuses can be obtained by converting resources using cards to create combos or by scoring victory points. During set-up, players choose one of twelve sidekicks that each provide a unique ability. Solo play is also available.