Space Castle is a retro style platform adventure game with a mystery storyline that is similar in playability to the games Metroid by Nintendo and Cave story by Doukutsu Monogatari.
Download the Linux CPP build v0.6.0 of the Space Castle game.
This is the full game of the Space Castle for Linux. After you download this file double click it to upzip to any folder and then double click the SpaceCastle file.