In terms of online gambling, Maine is one of several states in which it does not appear to be illegal to be acting in the capacity of a mere player, however, there are penalties prescribed for those who operate online casinos. Additionally, there is one racetrack (the other operates as a commercial casino, as well) that conducts live racing as well as pari-mutuel (simulcast) wagering.
At this time, there are only two commercial casinos operating within the state, both of which are fairly small. Maine tends to run somewhat in the middle-of-the-road politically but takes a more cautious approach when it comes to its gambling offerings. There is currently no regulated online casino gambling and no current bill before the Legislature to authorize same. There is a sports betting bill (which would also allow online betting) before the Legislature as of 2019, but it’s hard to say whether or not that will pass. While the state is home to two land casinos which can offer the full range of gambling options (with exception to sports betting) and one racetrack, it seems that they are quite satisfied not to expand beyond that. Short Summary: Maine is a pretty moderate state in most regards, and gambling is no exception.
