Spacecoin is a 50/50 hybrid Proof of Work (PoW) and Proof of Stake (PoS) equihash coin.
In wallet -qt no stakes, how can I receive coins using POS?
You must first have coins in your wallet to be able to stake and receive more coins.
Mine or buy coins first and send them to the QT wallet.
Then enable staking by clicking on the Stake file.