I'm sure that there must be a few subtle differences at the very least. If you are truly interested in playing goal and getting good at it, proper indoor hockey is great. As the only player that can use their whole body in a prone position legally, a keeper in indoor hockey can effect the way shots are defended. The game is six a side played on a hard wood floor with side boards and smaller goals. Find out the rules in your league.
Some local leagues change rules to accommodate facilities.
In any case, indoor can provide a keeper with a season's worth of outdoor chances in one game. I wanted to know what are some opportunities for me to keep playing. I am not a spectacular goalie. I am average. I had a decent career.