If this is a spam, then sorry for that.
I started to work on automated analyser which should bring as precise similar games as possibile, by taking focus on accuracy as main goal.
In my opinion, result is quite good, and will be improved as possible.
Project is currently processing 26000+ PC Games (DOS and Windows, 1981-2016), and a few thousands for whole PlayStation and Xbox families.
Here you can check example list of similar games for Baldurs Gate: http://www.similartype.com/?m=-1&id=1539&t=Baldur%27s+Gate

Automated analyser is not a human, so results are not perfect, but still quite good and useful for some people.
You can find anomalies on similarity ranking like games that are too high, too low or do not exist at all while they should be there.
Some of such cases are caused by too little information about such game right now.
Good example of low score is Temple Of Elemental Evil in Baldurs Gate similar games.
You may wonder what is doing Eye Of Beholder in Baldurs Gate similar games.
It is there because of fantasy setting, party based, real time combat, dungeons and dragons rules, and some other things in RPG gameplay.
So, if you find some anomalies, let me know and their reason will be investigated.

Green scores 81-99 are most similar games that could be found.
Blue scores 71-80 are still good similar games to check.
Red scores below 71 are optional with less similarities, and appear when not much higher scores are available.
Red scores below 61 are completely optional and may cause a laugh.

Any comments will be appreciated.
SimilarType is available for you here: http://www.similartype.com/
You can check out similar games to your favorite titles.
Thanks for your attention!