Yeah short vignette games were a concern when this was first announced. I don't know which solution Steam has for those (if any). Maybe they could not offer re

Yeah short vignette games were a concern when this was first announced. I don't know which solution Steam has for those (if any). Maybe they could not offer refunds after a significant percentage of the game has been played, regardless of time spent playing. Would be hard to determine how much of the game has been played though. The only way I could think of is to check achievements, but not all games have achievements. Or maybe expected length could be part of the store metadata. If the developer estimates 1.5hr playtime Steam could use that when processing refunds. Either way I'd consider this a corner case. To be solved sure, but not problem enough to disallow refund functionality for other games.