Seeing that 99% of the games get abandoned you're better off not starting any of them,even coc1 can be considered abandoned with all the unfinished quests and rushed ending
There is a difference of playing a game in development and playing an abandoned game.
In development is a bit like a sitcom where you continue walk along the live of some people and see how it continues. This could go on for way more longer until someday they are not findable anymore or there story reaches a point where you decide you could part ways.
On the other hand abandoned games are like leftover archelogic artifacts where you may be curious how they have been but always prepared to be lost in history.
So where in the first you can get invested unless you are so much disapointed that you can only for complete stories, in the second you will not even really get invested.
The difference is like having a romantic releationship against having a casual one night stand.