I got 34, although several I was able to narrow down to two, but picked the wrong one. I was surprised at how many seemingly obscure titles they put in there (and I was able to remember!)
Robert Maxwell wrote:
The Wing Commander one was also unfair. Like you could tell the difference between a WC1 and WC2 screenshot.
I could tell the difference!
The ship that's in front of you in that screenshot is only in WC2, not WC1.