Every game played against the house feeds one growing House Prize Fund, so members watch a single number climb instead of three unrelated ones. It's won outright by 💎💎💎 on the slots, a 🚀 on the spinner, or 👑👑👑 on a scratch card, and you set a guaranteed minimum the pot builds toward, a ceiling on how large it can grow, and whether a winner takes the lot or leaves some to roll over. The same fund pays a tournament: a daily, weekly, monthly, or calendar-scheduled contest where the top players split a prize, ranked by most wins, biggest single win, net profit, or total wagered. And it pays a lottery: a scheduled draw where members buy tickets with coins, every coin of which goes into the fund. You can also cap the largest payout any single play may make. Under that cap, a game with several bets, like Dice, Roulette, Baccarat or Sic Bo, takes a bigger wager on a safe bet than on a long shot.
Use it when you want the Arcade to build toward something, not just pay out one round at a time.
A worked example. Set a guaranteed minimum so the jackpot is worth chasing even on a quiet week, and a weekly tournament every Friday at 6pm ranked by biggest single win, so a member on a lucky streak has a reason to keep going rather than cash out early. Add a lottery that draws every Sunday: buying a ticket is cheap, and the fund it feeds is the same one the jackpot and the tournament already pay from, so every part of the Arcade builds toward the same pot.
(Configure → Games & prizes.)