Maine Online Casino Launch Eyes Early 2027 Amid Legal Battle

Maine is poised to become the eighth US state to launch iGaming. The state is targeting a launch in the first quarter of 2027, but an ongoing federal lawsuit over tribal-exclusive gaming rights casts a shadow over the timeline.

The Path to Launch

According to Milton Champion, Executive Director of the Maine Gambling Control Unit, early 2027 is a realistic launch window. However, the state must first finalize rules, complete legal reviews, and prepare its licensing infrastructure. Key milestones include:

• Rulemaking: Maine released its third round of iGaming regulations at the end of September.

• Public Comment: The public comment period for these proposed rules closes on October 30.

Under the new legislation, Maine’s four federally recognized Wabanaki Nations are granted exclusive rights to offer the best online casinos by partnering with commercial operators. Crucially, the law excludes Maine’s two commercial land-based casinos from obtaining their own online licenses. This exclusion sparked immediate controversy and litigation.

Historical Context: Why Exclusive Tribal Rights?

To understand the current legal battle, one must look back over four decades:

• 1980: The Maine Indian Claims Settlement Act granted the Wabanaki tribes roughly $80 million and the means to reclaim over 300,000 acres. However, the agreement left the tribes with restricted sovereignty compared to most other federally recognized tribes.

• 1988 & 1996: While the federal Indian Gaming Regulatory Act (IGRA) of 1988 paved the way for tribal casinos nationally, a 1996 federal appeals court ruled it did not apply to the Wabanaki due to the 1980 settlement.

• Leveling the Playing Field: To address what many saw as a historical imbalance, Maine lawmakers granted the tribes exclusive rights to online sports betting in 2022, followed by exclusive online casino rights.

The iGaming bill narrowly survived legislative challenges before passing. Governor Janet Mills ultimately allowed it to become law without her signature in January 2026, balancing public health concerns against the economic benefits for the tribes.

The Churchill Downs Lawsuit

In January 2026, Churchill Downs, owner of Maine's Oxford Casino Hotel, filed a federal lawsuit challenging the constitutionality of the tribal-exclusive framework.

• The Argument: Churchill Downs claims the law violates equal protection rights and creates a "race-based monopoly" by shutting out commercial operators.

• The Defense: The four Wabanaki tribes intervened as defendants, arguing the legislation rightfully recognizes their sovereignty and provides historically denied economic opportunities.

The case has seen a flurry of summary motions, with a "Ready for Trial" date currently set for November 4.

Complicating matters, Churchill Downs has historically opposed the expansion of iGaming nationwide, making their demand to participate in Maine's market seem somewhat contradictory. Furthermore, the company has publicly commented that it is looking to sell its land-based casinos, including Oxford. From their perspective, a successful legal challenge might not be about securing a license, but rather forcing Maine to reconsider its entire iGaming regulatory framework.

Caesars Marches Forward

Despite the litigation, commercial operators are preparing for launch. In June, Caesars Entertainment secured partnerships with three of the four Wabanaki Nations (the Penobscot, Mi’kmaq, and Houlton Band of Maliseet Indians).

Pending regulatory approval, Caesars plans to launch three distinct platforms in Maine:

1. Caesars Palace Online Casino - read our full review of Caesars Palace online casino here.

2. Horseshoe Online Casino - follow our link to read our in-depth Horseshoe online casino review.

3. Caesars Sportsbook & Casino - learn more with our Caesars sportsbook review.

The fourth tribe, the Passamaquoddy, currently partners with DraftKings for sports betting. While they haven't formally announced their iGaming partner, they are widely expected to fill in the last piece of Maine's upcoming market offering once regulations are finalized.

A Court-Ordered Conclusion?

While Caesars prepares its platforms and Churchill Downs litigates, the Gambling Control Unit remains focused on its Q1 2027 target. With the public comment period ending in late October, the regulatory framework is nearly complete.

However, the federal courts will inevitably have their say, likely ruling on key motions or setting a trial timeline in early November. With commercial giants preparing to launch, the Wabanaki Nations securing long-awaited gaming rights, and Churchill Downs fighting to dismantle the system, Maine's path to an online casino market will be anything but uneventful.