I guess it depends on what your definition of fixed is ?

Do you consider a slot machine that has a 92% payback fixed ?
In escessence a slot with aforementioned percentage will take in 8% guarenteed. Some people will take out more than they put in, but ultimately the machine wins. All you have to do is find players...

If you think about Party Poker or other online games. There is nothing illegal about charging someone a fee to play a game. Heck a Pinball charges 50c. So if the house takes in $2.00 a shot the house just needs to find people to play and they win Its not gambling.

Even if games are not rigged per say. You get four people playing online and three of them get on the phone sharing information in the background and the fourth guy becomes your patsy. Hand signaling happens happens all the time in poker rooms at the casinos between players. This is why the house doesn't play - they just provide an honest dealer and take in the ante. They use a call system and assign players to random tables to try and elimiate this but they can't entirely. In fact if you talk to any professional poker player the game is less about the cards and more about the "tells" - the ability to read the other players.

There are also several states that are looking to define poker as a game of skill.

Finally just a bit of trivia under federal gaming laws a video poker machine is defined as a slot.