External Review References
These are some of the sources we've used to compare Tor Browser and OpenVPN
Tor Browser Reviews
10 Alternative Browsers Based on Mozilla Firefox
That's why the Tor browser exists. It's a fork of Firefox, but the source code has actually been modified to make it more secure.
Top 13 Hamachi Alternatives for Virtual LAN Gaming
OpenVPN establishes a tunnel using the TCP shipment and presents a better internal security which is why it is one of the best Hamachi alternatives. But there is a disadvantage, this is not enough to play games via OpenVPN.