While they are conservative in other respects, Indiana is one of the more liberal states when it comes to Gaming. Unlike Illinois, Indiana also does not have any slot parlors.
The only common forms of gambling not specifically legalized and regulated in the state are online gambling as well as sports betting. There has been an exception made for one land casino, thus far, as well as one tribal casino. The charitable gambling regulations are mostly reasonable, the state has a lottery and the casinos can offer whatever they like provided they are located in the water and close for at least two of every 24 hours.
Short Summary: Indiana is fairly liberal when it comes to gambling laws.