I used to play tankionline quite a bit until the owners got too RW Money hungry. It's F2P in fact there's no P2P options. A lot of the extra armor, weapons, etc. you could buy with in-game currency. Some things could be bought with RWM but the game stayed fairly balanced. Then they came out with better tanks, weapons, etc. that could only be bought with RWM. The game went from F2P to Pay to Compete. Though I did buy a few things, the price of the extra perks were so expensive, it was ridiculous. I wasn't willing to pay the price and became cannon fodder. I quit after about 5 years of playing.
Music is the Heartbeat of the World
Let's flip a coin; heads I win, tails you lose. Fair enough?