The requirement for higher education is regional.

I'm 21 years old and from austria. ... currently not sure if I should go to a university or not.

I don't know about Austria specifically. In most regions of the world game studios are located in highly educated cities. Employers have a huge number of applicants, most of them have various degrees in addition to experience. In some regions of the world, a higher education is uncommon and individuals are mostly self-taught.

A computer science degree will help with many topics. Going through the process forces you to learn topics you wouldn't learn on your own, perhaps because you find them boring or because you didn't know you would need them.

There are many strong benefits of attending. The education is broad, you will be taught and exposed to a wide range of ideas that you otherwise probably would not. Within the field of study you will have a broad (yet shallow) introduction to every topic in the field. While most are courses and activities you choose, there are some topics you will dislike; learning to do projects you don't like is a valuable life skill. You can meet and work with people from a wide range of backgrounds, some will be easy to work with and others will be a challenge; learning to work with all types of people is a valuable life skill. You can learn about time management, pacing yourself. You can learn how to learn, and how to unlearn. You can learn how to struggle. You can learn a lot of humility, that you aren't the best in the world, that you don't know everything, and in fact you know less than you think. You can learn to question what you thought you knew. You can learn self discipline. You can learn how to work. You can learn how to steer your life. ... And unfortunately, there are some people who don't take opportunities to learn those things.

Academic opportunities can open up your life to a wide range of further opportunities for the rest of your life. If you are able to attend, it is usually a smart investment in your life.

Currently my job got kinda boring

That happens at all jobs. No matter how great the job is, no matter how great the workplace is, even when you are living a job that brings you bliss, you will have times that are boring.

I'm also not really interessted in non- game related stuff.

There are very few topics that cannot be applied to games.

All math topics, generic software development topics, architecture topics, database topics, computing theory topics, compiler theory, security and cryptography, they can all be applied to games.

Outside of programming, most academic topics are directly useful, though a small number are less-frequently useful. Music and art are obviously big things in games. Economics helps with how game flows and balancing. Interior design, landscaping, and similar help with world development. Most humanities help connect with people, building connections with players. Chemistry and biology and healthcare are less directly applicable to games, but there are many educational and informational games that need the topics, and understanding them won't hurt you even if you don't use it often. And even if you don't use those in games, there are simulators for those field that are basically highly-specific technical games rather than entertaining games.

There really aren't any academic subjects that have zero value. Non-games topics have a great value.

I don't learn new things anymore.

It is not your employer's job to provide continuous education for you. That is something you need to do yourself. If your employer can help by sending you to a conference on a subject or by some other action, ask them to do it, but ultimately the responsibility to keep your skills current falls on you.

Or should I keep learning things by my self?

Yes. Always keep learning on your own. Even when you are a working professional you are expected to stay current, learning independently.

So, you think it would be better to go to a university, than keep learning things on my own (ofc using books etc.) + work?

University (lets say full time) would take 5 years ~ + nearly no time at home because I have to study for the university.

In this time I would have 6-7 years of work experience(since i already got 2years) + more time to work on my own projects at home +study game related stuff on my own.

I don't know you specifically, and I don't know your life situation.

You're 21. That is young. If you graduate at age 25 or 26 you'll still be young, AND you will know more useful things.

University studies are not job training. They help you grow academically, they give valuable life experience, they are an opportunity to learn through guided study in a safe environment where mistakes are encouraged as long as you learn from them. Some people use the setting to learn a few things and become mediocre. Others use the setting to explore amazing things and push their own personal limits.

In general my recommendation is that if your life circumstances allow it, a university program can be a wonderful boost to your career and your life.

But it is not my opinion or recommendation that matters. It is your life, and you get to live it.

Considering you live in Austria which has some of the cheapest University fees in Europe it seems like it would be a waste not to go to University. Not to mention if you want to get anywhere in the games industry you are going to need to get that degree just so that it can open interviews for you.

So, you think it would be better to go to a university, than keep learning things on my own (ofc using books etc.) + work?

I think you may misunderstand the purpose of University. You don't go to University to be "taught" stuff. You go to University to "read" a subject. i.e. University is directed self study. If you are already teaching yourself stuff at home then University would be the same except you apply the stuff you are learning to a theme set out by your lecturer / professor.

A lot of programming will be a repeat for me, and I'm also not really interessted in non- game related stuff.

You would be surprised how well you can apply the non-games stuff to games

There are some universities where you already start with game programming in the first semester, but they are far away from home.

Then move away from home. You are 21. Go out see the world meet new people.

universites near me, only provide game related stuff in the master semster, so the Bachelor title will be really boring.

See my previous comment. Europe is a very easy place to move around and you are entitled to study in nearly any country you want.

University (lets say full time) would take 5 years

You only need a Bachelors degree in the games industry not a Masters so that would be 3 - 4 years

nearly no time at home because I have to study for the university.

What is your obsession with being at home. You are 21 get out and see the world. Also when I was at University I managed to study, hold down a full time job, make my own games all whilst being drunk for pretty much 8 hours every day.

In this time I would have 6-7 years of work experience(since i already got 2years) + more time to work on my own projects at home +study game related stuff on my own.

It doesn't really matter if HR departments just throw your application in the bin because they see you don't have a degree.

You only need a Bachelors degree in the games industry not a Masters so that would be 3 - 4 years

Well, I actually don't care about the degree, I just want to get better and learn new things.

The closest university only provides "game related stuff"(computer graphics) in the Master semester, so I would also try to get Master degree.

Considering you live in Austria which has some of the cheapest University fees in Europe it seems like it would be a waste not to go to University

Yeah thats true, if I study beside work it's even cheaper(maybe no fee at all for working people).

It doesn't really matter if HR departments just throw your application in the bin because they see you don't have a degree.

yeah this might be a problem for international jobs :/

Here in austria, my school + 2 year work experience is equal to university degree.