is this only for games
I saw multi so i wondered if i can use it for more than games
While I would certainly go through their website for 100% accuracy, I'm going to do my best to respond here from memory when I looked into this.
With ElGato's software, you can livestream directly more than just games, if you're using a camera in conjunction with it: ie: say hosting a small live show with you and your friends to one of the streaming services they support (twitch is for sure).
Now, if you're asking if it can be used to record movies, the answer is less definite- If you're using a PS4, you must turn off a copy-protection service in the PS4's settings in order for it to record. When this copy-protection is turned off, according to ElGato "Some media may not work" (I'm reading this to mean movies).
And, while the ElGato does a fairly great job at compression, if you're looking to record movies, my guess is, even IF it worked, the file size would be far more monstrous than you'd care to have without further compressing it with an editing program- the included one might do the job, but THINK you'd be better off using something like Sony.
Hopefully, someone with more experience with it can be more helpful, as I just recently purchased it and have only begun playing with it- I'm trying to work off memory here when I was reading things on their site. The "multi" you see attached to it, is, I believe referencing the fact that it works on multiple systems: PS3, PS4, Xbox 360, Xbox One, and believe Wii and even PS2.