We at Flippfly have have planted one huge easter egg in our upcoming game, Whisker Squadron: Survivor You might find a very familiar world... if you can manage to find your way into one of the portals in the game!
Whisker Squadron: Survivor is the next game from Flippfly, and is launching into Steam EA on August 21. It's an on-rails shooter with roguelite elements and an incredibly smooth game feel that Race The Sun fans will love.
You can wishlist it here, and get it on sale on August 21:
https://store.steampowered.com/app/2140100/Whisker_Squadron_Survivor
And here's the animated launch trailer: