The first thing I noticed on this website is that SandboxCasino has an impressive list of categories and games. Almost any player will be able to find exactly what he likes the most: from roulette to poker. Also, Sandbox is not complete without casual games, like fishing or air combat. By the way, there are more than 3 dozen casual games. Which of these games is your favorite on this site?
If that is about favorite games, I will pick Slots and Dice because that game is an easy gambling game I can play without learning many things. Sweet Bonanza from Pragmatic Play is a good game for me while I play on random Dice games from the various provider. But I am not yet played any games on Sandbox Casino, maybe later, I will deposit $5 as the minimum deposit amount.
Almost all casinos have those "basic gambling games" lists on their site, making people stay for long to play many games.