English (blackball) rules: seven reds, seven yellows and the black. The first player breaks; after that, whoever lost the previous rack breaks next, placing the cue ball anywhere in the kitchen (behind the line). A legal break sends a ball into a pocket or at least two balls to a cushion; otherwise it's a foul and the opponent chooses to play on or have a re-rack.
Prefer solids and stripes? The Balls switch under the table changes the look (numbered solids for reds, stripes for yellows) - the rules are identical, and it's a personal setting, so each online player can pick their own.
The table is open until a legal pot. Pot only one colour off the break (or a later shot) and that's yours; pot both colours and the table stays open, so you choose. Pot your own colour and you keep shooting.
Fouls: scratching the cue ball, hitting the wrong colour (or the black too soon) first, or hitting nothing. After a foul your opponent places the cue ball anywhere in the kitchen and gets two visits: a miss on the first visit gives them a second. A player already on the black gets one visit, and a second visit never carries onto the black.
Clear your colour, then click a pocket to call it and pot the black there to win. You lose if the black goes in early, with your last ball, on a foul, or in the wrong pocket. Black on the break re-racks.
Drag the dot on the mini cue ball to load spin: above center follows through after contact, below center draws back, and off to a side curves the cue ball off cushions. It stays set until you move it.