The Game You Already Know
Four tokens, one dice, and a race to get them home before the other side does. A six both moves a token and earns another roll, landing on an opponent sends them back to the start, and the home column has to be entered on an exact count. Nothing about the rules has been changed to suit the stakes.
Playing for Money
The difference from a board at home is that the dice is generated rather than thrown, using a method you can verify after the game, so no roll can be influenced by either side. Stakes are set before the match starts.
Before You Play
Ludo rewards a bit of patience with token spacing, but a long run of sixes decides plenty of games regardless. Treat it as a betting game rather than a skill game, and try a free round at lol44 first.