So Fireproof Games is gonna make a modern military shooter next? :-)
But in all seriousness, I wonder how one could even monetize a game like The Room to be free to play. Extra puzzle boxes? Maybe you buy each successive level of the box?
Moving a contraption costs energy, but it recharges slowly. You can pay to refill your energy but you can't progress to the next room/box for another 8 hours, but you can pay to speed that up too! Don't worry!
That's how. I'm sure there's a worse way than that.