You can get the Batman Arkham collection and the LEGO Batman trilogy for free on the Epic Games Store right now
I know, I know, the Epic Game Store is an evil capitalist construct out to ruin video games, but the place does dish out a bunch of video games for free on the regular, letting you build up a healthy library all for the reasonable cost of not a damned thing. I know that in itself grates some people, with the accusation that Epic is buying customers, and that may be true, but let me repeat: free games.

