Voidship: The Long Journey is currently at it's all-time low price of -80% til October 7th.
Voidship is not the only space game on sale though. I've joined forces with a group of other space game developers to bring you #spacegamesale. A coordinated effort between devs to bring you as much indie space game goodness as possible.
Check it out here: https://store.steampowered.com/sale/spacesale