Speaking as somebody who has been gaming on linux for many years, it is SIGNIFICANTLY better than it was 5 years ago. 5 years ago, the only games on linux were

Speaking as somebody who has been gaming on linux for many years, it is SIGNIFICANTLY better than it was 5 years ago. 5 years ago, the only games on linux were open source games (TeeWorlds, Battle For Wesnoth, Frogatto, Nexuiz (now Xonotic)), and some open source knockoffs of nintendo games (super tux etc.), some id games from before Dave Taylor packed his bags, and the meager handful of indies that the Humble Bundle ported. Now, we have many of the numerous indies on steam, and many of those who haven't already plan to have support. We have VALVE'S ENTIRE BACK CATALOG, for crying out loud. We've got Mount and Blade, Reflex, Transistor, Shovel Knight, Stacking, The Talos Principle, Shadow of Mordor, The Stanley Parable, technically Undertale, although no official support, and that's just a quick at my steam library and the storefront. Sure, maybe your game of choice hasn't been ported, but it's gotten SO much better. And Wine has gotten better too. We are long past the days when the Source 13 update made my copy of Portal 2 unplayable.