Pundi X is the latest and not so old project that became successful.
Definitely these two! Add Steemit to the list. These are projects that have delivered on their promise and have products. Steemit has a platform that is currently widely used and it's in beta stage
I agree with Steemit platform as well its one of the most successful that got a lot of users and investors. Binance Coin almost is another successful crypto project which lead them to be one of the most successful exchange.