Overall, slot machine vendors claim to have an "Asian appeal" and are introducing new products to local markets. But it's easy for four industry executives to say at a conference panel session in G2E Asia that ends today.

"Getting the math right for Asia is probably the most important thing," said Ken Jolie, vice president of Bali Technologies' SHFL Entertainment. "Designing games is the hardest thing."

"Adaptation to each market is very important," added Takahiro Wusui (pictured, first from right), senior general manager of Aruze Gaming Macau Inc.

Woo said the Philippine market is a prime example. Successful products for the upper tier of the market are very similar to those that work well in Macau, including features like jackpots that are linked to high volatility. However, at the bottom of the market, players in the Philippines are looking for more entertainment-based games, he added.

Sabi Gill (pictured, second from left), senior vice president of international sales at International Game Technology (IGT), agreed. "It depends on making sure the content is right for the individual market," he said.

Mr Gill noted that it is important to understand player demographics and the game sector (large or VIP).

Peter Jones (pictured, second from right), vice president of electronic gaming at Galaxy Macao, a casino resort, stressed the importance of regular jackpots, or players will switch off, he said. Jones said Galaxy Macao's jackpots will switch off every 45 days on average.

Woosu-yi said that future opportunities may be a hybrid solution that combines pure electronic games with e-table games that are quite popular in many Asian markets. "That's the challenge manufacturers have to address and to create something new that's not classified," he said.