developer Harebrained Schemes has narrowed down the game's release date to June. Late last year the studio announced a delay
and waffled between a May or June launch, but it's l'eggo of the notion of May.
Also included in the update posted by the developer on its Kickstarter page
, they detail a bunch of backer rewards information. If you backed the game on Kickstarter, you'll definitely want to take a look, as there appear to be registration deadlines you'll have to hit for your rewards.
The game will launch in June on Steam (with Steam Workshop integration), pre-orders for non backers will be available the last week of April.