
The new Eureka Productions format combines fast-paced quiz questions with a high-stakes stacking game, challenging contestants to build towering structures without letting them collapse.
Seven Network is preparing to introduce Stacks of Cash, a new primetime game show from Eureka Productions that brings a familiar stacking-game concept to life on a giant scale. Combining trivia, oversized game pieces and tense elimination rounds, the format puts contestants’ knowledge and precision to the test.
From Portugal to International Markets
Developed by Eureka Productions and Seven Network, Stacks of Cash has already made its European debut in Portugal under the title Linha d’Ouro (Gold Line), airing on TVI.
The show’s opening episode claimed the No. 1 position in its primetime timeslot, while multiple episodes went on to rank as TVI’s No. 1 show of the day, offering an early indication of the format’s appeal.
The concept is also attracting interest in the United States. According to Variety, CBS is preparing its own production, with Mike O’Malley set to host the American version.

How Stacks of Cash Works
The competition brings together six contestants who answer quiz questions to win oversized shapes marked with cash values. Using a giant mechanical claw, players carefully lower the pieces into position, attempting to construct tall, multi-shaped towers.
But building a tower is only half the challenge. Contestants must keep their structures balanced as the competition progresses, with the threat of collapse hanging over every move. During elimination rounds, a falling tower means the contestant is out, turning each placement into a potentially decisive moment.
The combination of quick-fire questions and physical strategy is designed to create suspense while giving viewers at home a game they can follow and play along with.
Six episodes of Stacks of Cash have been filmed for Seven in Portugal. The format will also be presented to international buyers at MIPCOM, the television and entertainment industry market, as its producers look to expand its reach beyond its initial commissions.
Eureka and Fremantle Back the Format’s Global Potential
Chris Culvenor, Co-CEO of Eureka Studios, said the show takes the basic idea of a stacking game, familiar to many people through mobile apps, and transforms it into a large-scale television competition.
“Everyone has played a stacking game on their phone. We brought it to life with giant teetering towers and combined it with a rapid-fire quiz,” Culvenor said.
He described the series as a major primetime entertainment format with a distinctive look and an accessible concept intended to engage the whole family. He also welcomed the backing from CBS and Seven, expressing confidence that the format could continue expanding into international markets.
Fremantle Head of Global Entertainment Ben Crompton highlighted the show’s visual scale and tension, describing Stacks of Cash as an edge-of-your-seat game show built around oversized set pieces and a distinctive visual identity.
Crompton said the format was designed to bring audiences together through an immediately understandable competition, with viewers encouraged to react to the action unfolding on screen.
He also pointed to the partnership between Eureka’s creative team and Fremantle’s international distribution network as a production model intended to meet buyers’ demand for programmes that combine scale with value.
The commissions from CBS and Seven, alongside the positive response to the Portuguese version on TVI, were cited as encouraging signs of the format’s potential in overseas markets.
Seven’s Upfront Presentation Set for October 22
Stacks of Cash adds to Seven’s upcoming entertainment slate as the network prepares for its annual Upfront presentation on October 22.
Seven also has Caught in the Middle, another Eureka production, already filmed and awaiting its place in the network’s programming plans.
With its Portuguese launch delivering strong early ratings and versions commissioned for both Seven and CBS, Stacks of Cash is positioning itself as a new international game-show format built around a simple premise: answer the questions, stack the cash and keep the tower standing.