Around $1.5 Billion to be exact, which places him at number 854 in the current list of 1,226 billionaires.
Newell used his savings to co-found Valve back in 1996 and now holds more than a 50 percent share of the private company.
Since he never discloses his finances, Forbes estimated his worth by consulting with various industry insiders, equity analysts and investment bankers to determine how much Valve is worth.
According to them, the company is valued at around $3 Billion at the lowest estimate which makes Newell, who owns half, worth around $1.5 Billion.
EGM’s TAKE: Well it appears that when you’re worth over a billion dollars you can choose when you want to tell people about your newest game. That’s based on the fact that it’s been years since the last Half-Life, and no matter how much fans beg, cry and plead Valve has given us nothing.