The Octillion Entertainment Collection is now live, and should soon appear on the games' store pages. This lets you buy Octillion Entertainment's games at a small discount when purchased together.
Here is a direct link to it:
https://store.steampowered.com/bundle/20485/Octillion_Entertainment_Collection/
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.