Yes, the problem of PVP Game will be always lack of player and maybe a few reason everyone doesnt like DuelDice because the house edge was pretty high they take 5% house edge.
OK got it
It is indeed hard to get good traffic on any type of PVP based games. Poker for example, although this game is a very popular game in this world but it is still very rare to see successful crypto poker site. That's why I said previously that I do not hope to see new pvp games. Better to have more games like dice, crash, plinko, and hopefully provably fair slots.