On whatoplay.com, each game has a playscore which is an average based on all reviews on the net such as critic reviews from IGN, gamer reviews from Steam, and reviews directly written on the site. Source: about 1 year ago

Can I add your review to whatoplay.com ? I'll credit you appropriately, (PS, that no dmg run is insane). Source: about 1 year ago

Use whatoplay.com you can filter by year. Source: almost 3 years ago

You could also try whatoplay.com - they take at least 3 critic reviews and the average over user ratings from steam, gog.com etc. And then generate an aggregate rating from that. However, niche games will suffer from that (but these could still be great games). Source: about 3 years ago

If you still want an estimate you can check on Steam Spy. Source: about 1 year ago

I think Valve will shut it down once it learns about the monetization. AFAIK that is what happened to https://steamspy.com/ when they introduced paid subscription tier. - Source: Hacker News / over 1 year ago

If you still want to see numbers, you can try with Steam Spy with VN available on steam. Most of the developers say that those numbers are false. Source: over 1 year ago

Research popular game genres, for example on https://steamspy.com, and find a genre that currently sells well. Source: almost 2 years ago

Steam Spy - must have tool for anyone who wants to get some data about Steam games. Source: almost 2 years ago