Disclaimer: This article is for informational purposes. Always support developers by purchasing official copies of games. The manifest IDs provided are for legally purchased copies of Starbound on Steam.
If you added the exe as a non-Steam game, turn off the overlay. The old UI crashes with modern overlays.
If you are searching for a hoping to find a simple installer on the main website, you will be disappointed. Chucklefish generally pushes the latest version of the game to ensure all players are on the same, secure, and stable build.
However, for those who legally own the game on Steam or GOG, accessing older versions is possible, though it requires a few specific steps.
If you bought Starbound on Steam, Valve keeps nearly every depot version on their servers. You can force Steam to download Enraged Koala using the Steam Console.