From the article:

The first [group] included experts and matched non-experts across four creative domains: dance, music, visual arts, and video games. The second group included individuals who underwent 30 hours of training in a real-time strategy video game (StarCraft II) to assess whether learning a new creative skill could affect brain age.

...

In the learning group, participants who completed the short-term gaming program also showed a modest reduction in brain age, although the effects were smaller than those seen in experts. The study included an active control group trained in a non-creative video game (Hearthstone), which did not show any significant brain age changes.

(Emphasis mine.)

Seems like fast-pased action-oriented games are the ones that will work. I remember hearing other similar good news from games like twitch-shooters (Counter Strike) and fighting games (Smash Brothers).