To offer rewards you would need users and a vibrant market, otherwise the price would collapse and mining would not be profitable, or you are going to have to p

To offer rewards you would need users and a vibrant market, otherwise the price would collapse and mining would not be profitable, or you are going to have to personally subsidize the rewards yourself, which would not qualify as cloning bitcoing for free. Bitcoin has these things which is why bitcoin mining is profitable, and why the majority of PoW mining is for bitcoin.