[gspetr]

"Specific genres?"

This probably depends on your ratio of story/art to engine/game mechanics[0] your game would have.

It seems games that do not require continuous player progress (ruling out RPGs entirely) can be a good fit.

e.g. Episodic story-telling games and then something like Hitman, so action games can be done that way too.

But you could easily release TBS games this way too, many "mission"-based games would lend themselves to this format.

[0] In a broad sense.