Something i don't understand is this project is the 80% held by the team.. What's the purpose of these tokens?
Please refer to this section on royalkingdomcoin.com:Quote
The team is all in.
Many confuse ICO and crowdfunding. They forget that Initial Coin Offering was supposed to resemble Initial Public Offering, but in a crypto world. In IPO, a company goes public when it already has profits, and it sells some of the shares to investors in return for future dividends. Instead, some people crowd fund money just based on an idea, and just call it ICOs.
We are not stating that ICO and IPO are equal in a legal sense, but we followed the same philosophy: at the moment when our ICO started, we already were an established company, with projects, clients and sales. We have personally invested our money and time getting to this point, so we have dedicated only 18% of the supply for public. Knowing we have a large stake in this, you can be sure we will fight tooth and nail for the future of our company and RKC, as we already do. We are all in.
Many confuse ICO and crowdfunding. They forget that Initial Coin Offering was supposed to resemble Initial Public Offering, but in a crypto world. In IPO, a company goes public when it already has profits, and it sells some of the shares to investors in return for future dividends. Instead, some people crowd fund money just based on an idea, and just call it ICOs.
We are not stating that ICO and IPO are equal in a legal sense, but we followed the same philosophy: at the moment when our ICO started, we already were an established company, with projects, clients and sales. We have personally invested our money and time getting to this point, so we have dedicated only 18% of the supply for public. Knowing we have a large stake in this, you can be sure we will fight tooth and nail for the future of our company and RKC, as we already do. We are all in.
Quote
because, as it is written in the whitepaper, 50% of the benefits of the society will be used to buy token each month, driving the price up, but the 80% hold by the team (which is huge amount) will be on the markets some day or another no?
Dumping large amounts on the market would cause the price crashing + there wouldn't be a liquidity to sell all tokens for their potential price anyway. So this move wouldn't make any sense. Instead, the proper way to do it is how traditional companies always do it - sell it privately for the current price without moving them through the market, not affecting the price. We all know that C*Os of the most companies have large equities in their own company, but nobody worries that they might just dump their shares onto the market tomorrow and crash the stock.Quote
so they will buy their own tokens? makes no sense for me.. if someone can clear this 
The company will buy the tokens using the profit and then redistribute all bought tokens to all the holders proportionally. This is commonly known as "buy-back".