After spending more than five years of work, Lexington-based game creator Omar Khudari plans to officially shut down game software developer Cecropia Inc. in September.

Khudari said he is shuttering Cecropia, a self-funded company that launched an animated game called The Act in 2006. The company, which tested a coin-operated version of the game last year, planned to subsequently create a home version depending on negotiations with publishers.

But interest in the game, which was created with the help of 40 former animators from the Walt Disney Animation Studios in Orlando, Fla., didn’t materialize after Khudari pitched the game to at least 18 publishers. So nine months ago, he decided to begin shutting down operations.

The closing coincides with an unusually active period for the game industry — especially locally — which added to the heartache, said Khudari, a former co-founder of Papyrus Design Group Inc.

“It is extremely hard and very disappointing,” Khudari said. “I was encouraged by the industry getting broader and mainstream.”

Other New England game companies have been active over the past couple of years.