You can read a more in-depth explanation in Introducing King of EOS.
This is a misconception people have about the workings of this contract. As soon as you become king, your EOS is already sent to the previous king. So there never is any money in the contract to be given back to you. After 7 days without a new king, a new round starts at 1 EOS
again. You will have "lost" your EOS as there's no chance of anybody claiming your throne in the old round, but at least you will be immortalized in the Hall of Fame until the universe and the EOS blockchain die ..
You need an account on the EOS blockchain. Then you need to simply transfer the correct amount of money to the kingofeos contract. (Don't worry, if you send a wrong amount the transaction will fail.) This can be done with any wallet. I suggest using Scatter, a secure Chrome extension with good integration to websites. Make sure to send your kingdom customizations along as the transfer memo.
Yes! A king wouldn't be a king without his castle. The castle of the active king is always displayed on top of this page and can be customized: You can set the name of your kingdom, and upload an image which will be displayed on the flag of your castle tower.
These customizations must be submitted along with the transfer claiming the throne in the memo. Click the Claim button at the top of this page for the correct command.
You can verify that the deployed smart contract matches its source code on EOSPark. You can also visit bloks.io to verify the transfers coming in and going out of the contract.
There is a commission charge of 5% per transfer for the development and RAM costs. This means you will still earn 130% of the price you paid when someone claims your throne. (135% increased throne price - 5% commission).
No. The logic is handled by the contract and its transfers cannot be reversed. Be sure to know what you are doing and apply common sense - don't use money you can't afford to lose. Besides that, there never really is any money in the contract itself, because the money that comes in is immediately transfered to the previous king.