>>1019878The problem is, the "good" games they play all have so many players it's impossible to tell whether the Holos have any effect, since player counts tend to vary (and there are sales, promo rounds on the Steam front page, updates, etc), so to get good data you need games that are relatively unpopular, aren't being played by other streamers, have been out for a while, but that the Holos make look fun. Blazing Sails was a multiplayer game and Gura was playing on public servers, so if you bought it you might get a chance to play with her -- seems like a decent example. She streamed it December 16 and the VOD has 437,000 views. Pekora streamed it December 15 and her VOD has 372,000 views.
The chart:
https://steamcharts.com/app/1158940#AllThey, combined, might've driven 80 players...? But even that is shaky.
Botan streamed Trials Rising for the first time on December 26. VOD has 271,408 views. The chart:
https://steamcharts.com/app/641080#6mNo noticeable incline. Pekora streamed it on December 28, VOD has 271,250 views. Again, no visible incline. Botan made the game look fun, and had the potential to drive a number of sales, but it doesn't look like that materialized.