if the render is good enough but i am not gonna invest in the story much, and i read too many axed manga/manhwa so the fact that it didn't have ending or finished doesn't bother me much XD
For me it depends on how much content it had before it got abandoned. If I play a game I want it to have a good supply of content otherwise I feel like I wasted my time. The story itself is also pretty important but in my opinion its second to how much content it possesses.
I will play an abandoned game if it looks interesting enough, but it's always a little sad when you play one that had a lot of potential that will never be realized.