Of course, You are absolutely right. The author said he had no idea how to value his work and I was thinking... Hmm, he might try to use financial math formulas

Of course, You are absolutely right. The author said he had no idea how to value his work and I was thinking... Hmm, he might try to use financial math formulas such as the NPV as help. If the game makes $9000 profit per year at a discount rate of 3% you could value it: $8738 ... (makes profit for N years, where N = 1) $17221 ... (makes profit for N years, where N = 2) $25458 ... (makes profit for N years, where N = 3) $41217 ... (makes profit for N years, where N = 5) $76772 ... (makes profit for N years, where N = 10) $133897 ... (makes profit for N years, where N = 20) $284390 ... (makes profit for N years, where N = 100) And no software is able to make profit for 100 years. (disclaimer: my calculation might of course be wrong, I didn't put much thinking into it)