Among common casino games, which ones have a relatively lower house edge?

In casinos, some games indeed have a smaller house edge, and players can increase their chances of winning with a bit of skill.

For example, blackjack (21) is an excellent choice. If you learn the basic strategy, such as when to hit and when to stand, the house edge can be reduced to under 1%, sometimes even less than 0.5%. This is significantly better than many other games.

Another option is Video Poker, especially 'full pay' machines like Jack or Better. If you play correctly and make the right decisions, you'll lose very little in the long run, and some machines can even give players a slight advantage.

Then there's roulette, specifically European roulette (the one with a single zero), which is much better than American roulette (with both 0 and 00). The house edge drops from American roulette's 5.26% to 2.7%. While the house still has an advantage, it's considerably more player-friendly.

In short, if you want to lose less, choose games where skill can reduce the house's advantage, instead of just relying on luck. Practicing strategy will serve you much better than randomly playing dice games or slot machines.