Connecticut-based Mohegan Sun hopes to expand its brand into neighboring Massachusetts.

Supporters of a proposed casino to be developed by the Mohegan Tribal Gaming Authority gathered together in Palmer last month to hold a rally themed, “Next Steps to Winning.”

Mohegan Sun’s proposal for an $85 million regional gaming license is one of several for the western part of the state. In Holyoke, Hard Rock International and Paper City Development have joined forces, and in Springfield, Ameristar hopes to build a $500 million casino. Also, Palmer Paving CEO David Callahan has a proposal to build a casino on 180 acres of land he owns in Brimfield. He has said he is talking to two potential development partners, whose identities have yet to be revealed.

“This is a competition and the lights changed from red to green,” said Vice President of Development at Mohegan Sun Paul Brody, referring to the recently signed casino gaming bill that provides for three casinos and one slot parlor. “We’re in a competition and the folks in Palmer want everyone to know that they’ve been here a long time and they want this casino.”

“They’ve been the only named developer since the beginning of the process,” Robert Young of Palmer Business for Palmer Casino, told station WSHM.

The gaming bill requires local approval and a minimum capital investment of $500 million for each of the regional casinos. Mohegan’s project in Palmer is projected to cost $600 million, and would be a full-scale resort with a hotel, retail shops, brand-name restaurants and a spa.