It will work for the Walther Creed IF it is the TG13WA4PC set of sights that, unfortunately, seem to have been out of stock almost everywhere. I corresponded with TruGlo and it appears that all sights for the model PPSM2 will also fit the Creed. If you look at the PPSM2 you will see that the slides look similar or identical. I own two Creeds and an waiting for this sight set to be available. My only complaint about the Creed is the rounded front to the trigger guard, but that is a quibble for the price. All I can guess is that the TFX version was over-produced and that TruGlo might want to get those off the market before making more of the popular TFX Pro models. That said, I use TruGlo sights on all of my semi-auto pistols.
According to TruGlo customer service, it will. I have two Creeds, both for self-defense but not so much for on-body carry. The first wears the TG231W2W Tritium Pro and is my nightstand gun. Tight fit, but I had a pro gunsmith do it and the job was perfect. Very bright, easy to find 3-little-green-eyes in the dark. It will not give away your position. The Pro model I am adding to the second gun because it will be my truck/ATV gun and more likely to be used in daylight or low light, rather than no light. Some folks ask who I'd spend half the cost of the gun on these sights, but think about what a good scope costs.