PC players eagerly awaiting the arrival of Spelunky 2 now have a time frame to work to as they attempt to manage their mounting enthusiasm; according to developer Derek Yu, it'll be arriving "a few weeks after" the PlayStation 4 version.
If you're looking to narrow that window down further, Spelunky 2 will be heading to PS4 on 15th September. And with a recent tweet from Yu, confirming he's "aiming to get the game out on Steam no later than a few weeks after" that, it seems reasonable to expect the PC version to release late September/early October, barring any unforeseen hiccups.
Discussing the staggered release further in a follow-up tweet, Yu explained the team will be using the extra time "to make sure that Spelunky 2 runs well on PC. That includes testing online multiplayer, but it's not the only thing we'll be busy with."