Europe was a late market. Nintendo was pretty silent here, while Sega had adds on TV. Also, gaming is still seen as "not healthy" for many people over 40 years old.
When the war was between Sega and Nintendo, both were pretty equal in Europe. So when Sega fell, Sony took the spot easily. Now, if you add the type of games, european gamers like a lot adventure-type games like GOW, RDR2, Tomb Raider, Assassin's Creed, GTA or Uncharted, racing with Mario Kart or Grand Turismo, soccer with FIFA, and the teenargers like FPS like COD, Far Cry or Battlefield.
You add Mario and Pokemon in the picture (that's why the Switch still sells. And games like Splatoon) but you get the picture why Sony dominates so much, why Microsoft can sell some consoles here and why Switch is selling a less than in the US/Japan. Then there is also secondary market, like JRPG's and fighting games to complete the picture.
But a new Pokemon game + a price cut will create a huge boost in Europe. Also, Nintendo is trying to compete here by getting games like Fortnite and Fighter Z. They will lack games like FIFA or FPS's (but who knows for the latter), but the exclusives will still be a huge factor. And gamers will get both consoles (XOne is virtually dead here. They were outsold 4:1 by the PS4 and 2.5:1 by the NS. NS will pass them in 2019), since they bought a PS4 long ago and the PS5 isn't announced yet.







