Ainsworth Game Technology (ASX:AGI) expects its profit before tax for the first half of the year to fall to about AU$1 million from AU$13.9 million in the same period a year earlier, according to a Friday filing with the Australian bourse.

First-half revenue is expected to decline about 24% year over year to AU$116 million due to lower revenue in the North American region, reflecting reduced outright sales and fewer units under gaming operations.

"Increased competitive factors and the adverse economic conditions within North America have created initial revenue shortfalls whilst the company progresses product development to remain competitive," Ainsworth said.

Underlying earnings before interest, taxes, depreciation, and amortization for the first half are expected to be about AU$13 million, down from AU$26.9 million a year earlier.