Most of my wager on Plinko and RocketDice so for wager competition I play on Plinko while for the biggest win competition I play on RocketDice
We can play both at the same time just open a new tab and minimize your screen/window then let the auto spin run
check your computer every 5-10 minutes to make sure all games are active because sometimes the game error.
So you play 2 tabs with the same balance, very bold and not many of us make 2 bets at the same time. Because usually, it triggers a double reduction when both games make us lose. With your method of playing at the same time, maybe only a few people are doing the same thing. I honestly have never done that because I can't control defeat at the same time.