StarCrossed will be released on Steam early 2019 for PC, Mac, and Linux.
We are currently starting the certification process for consoles and hope to bring StarCrossed to Xbox One and Switch within 2019.
Yes, we will be supporting a control scheme so players can play StarCrossed solo. However, the game was built from the ground up for two players, so that is really the optimal way to play!
Don't see the answer to your question? Ask the project creator directly.