Did you learn Japanese playing games? If so, how?

These games might interest you:
https://store.steampowered.com/app/438270/Learn_Japanese_To_Survive_Hiragana_Battle/
https://store.steampowered.com/app/672430/Koe/

Fucking Fallout 1. I didn't know any english when I started playing. I ended up learning a lot because I wanted to learn everything :)

Video games and movies did help me to learn english but I doubt you should just stick to this if you really want to learn. Taking classes is always helpful.
Same thing with japanese. Reading the kana alphabet is a good start but it won't take you that far. I took japanese classes and Kanjis are still hard for me lol.

Buuuut, if you want to try by playing games I would recommend some aimed at kids (like Nintendo games and such), those tend to not use that many kanjis, and if there are they come with furigana (hiragana besides the kanji so you can read it)

i'm taking a real japanese course and still hardly understood only 40%-50% of a VN (maybe 10% without japanese sub). Learning Japanese is considerably harder since your brain is well known to phonograms but not to logograms. Also the sentence structure is kinda upside-down

how can I do the same with Japanese?

Mind that you have to actually invest in some serious time if you want to learn Japanese. There are around 2000 commonly used kanji, so it will take a while just to be able to read the language. Taking classes is the easiest way. You also get to make new friends! If you're not a social person like me, you can always try to study yourself. There are several other ways including reading Japanese visual novels and hooking them up to a Japanese parser with built-in dictionary or using flashcards to learn the kanji and the words. Personally I've been using Anki everyday for a few minutes to study kanji and vocabulary and I currently know about 350 kanji (that's what Anki says but I doubt I know that much :v) Also you have to make sure you learn the grammar as well because Japanese isn't all kanji. There are textbooks available such as Genki and Minna no Nihongo but then again I didn't have enough money to buy them so I studied with Tae Kim's Guide to Japanese Grammar, which is available online.

but I don't know when I should read it with one or the other read form

Don't try to learn the readings of kanji by themselves. Try to learn them as a part of the words/vocabulary they are used with. The context will make the reading clear.

Here are some resources I used: a guide to learning Japanese with multiple approaches and a guide to Japanese visual novels, video games and manga

(I've been studying japanese for many years but I'm not an expert so take my advice with a grain of salt.)

Kanji is definitely the hardest part of the japanese language with their multiple pronunciation.
I don't know if it's already the case, but my advice would be to start by learning a good amount of vocabulary to make a foundation because without it, reading would be too overwhelming to be enjoyable.
I would say something like 300-500 basic words. A good reference would be the vocabulary in the JLPT N5, which is a well renowned test going from N5 (Beginner) to N1 (Master).
To learn those words I will suggest a flashcards method like Memrise or Anki which already have decks of flashcards with N5 vocabulary.

After that, I will suggest a game that you already played with little to no story (old Pokemon/Zelda games are good IMO). Each time there is a sentence, try to translate it by yourself and if you can't, try to look up the words (jisho.org)
and make a new flashcards deck with every words you don't know because you will forget them if you don't revise them later.

For the Kanji part, that's a really big task. I think that's easier if you already have a couple thousands vocabulary under your belt but first you need to learn the 216 radicals because all Kanji that exist
are composed from those 216 radicals. That will greatly improve your ability to recognize all the different Kanji.

If you learned all the radicals, you can play a game (better if it's with simple vocabulary like a children game) and look up the kanji by words and add them to a deck with each of their signification and the prononciation in this word.

If you want more details, don't hesitate to ask me =)

Hmm? Do not you understand Japanese?
Do you read articles that have both Japanese and English descriptions?

I did not have a sense to memorize the language of other countries. XD
Capture2Text http://capture2text.sourceforge.net/
I often use such things.

Daily Portal Z : @nifty http://portal.nifty.com/en/
デイリーポータル Z http://portal.nifty.com/
"Funny" article in Japan.
If you read a variety of articles or even read the novels, will the reading of kanji be easy to understand?

I guess you should try some grammar books first, which will help you parse sentences and know the inflections. Then you can pick out the words to look up in a dictionary.

Once you get to a more advanced level, I find reading voiced VN in Japanese the most efficient way to learn Japanese. You get to hear how the words are read out loud and how it's written at the same time, and if you can parse the sentence, you can look up the meaning of the words you don't know.

Regarding the different readings of a kanji, I don't know a good way to guess them. I mostly remember them from reading Japanese VN/LN.

As someone who also bruterforced his way through english in order to consume more media I'd love to know how to do the same for japanese, but unlike you I gave up as soon I realized how hard it was to learn a whole new writing system :P
If you manage to find a successful way to do so you could probably write a book about it, I'd buy that.

I already learned Japanese but I expanded my vocabulary in my first years by playing games aimed at children.
I used a PS1 emulator and a few Japanese games' roms.
Usually, the kanji are not too hard and the words not too complex, so it's a good way to start.
Of course, nowadays, you can use emulators for more recent platforms than PS1 (^o^)

all i heared is the word BAKA from a girl in the discord XD

I first learned the grammar taking actual Japanese classes, but my vocabulary expanded greatly playing untranslated VNs with dictionaries.

Learning how radicals work in Kanji help a lot when searching through digital dictionaries like jisho and tangorin, as you can look up what that kanji means/read as by how it's written. Besides, it allows you to look up text that isn't voice acted.

I wish you the best of luck! I think it's wonderful you want to learn another language on top of the ones you already know. I tried off and on to learn Spanish as an adult but it's really hard to stick with it! (and it doesn't help that I have a really weird accent in English, anyways, so any other language I try to speak comes out ghastly)

A lot of people have given you good, real advice - I just want to cheer you on! I hope you keep trying and don't get discouraged. You can do it!

I took a couple of classes. The issue was I didn't have anybody to practice with, so to at least keep some of it relevant I played a game called Influent. It isn't anything amazing. Essentially just virtual flashcards, but being able to figure out what words they treated as foreign indtead of native japanese vocabulary helped cement my knowledge a little.
I hope you can find skme game to help you learn Japanese, I could certainly use them so I don't forget thr language. ^_^

It's not really a "game", but I'm a big fan of Kanji Senpai https://play.google.com/store/apps/details?id=jp.rodriguez.kanjisenpai.android&hl=en_US as a kanji learning app.

In my opinion there are 2 very important things when learning new language:

1. The first wall. The learning curve. The beginning. Whatever you name it.
2. How to use it every time and i mean time as 24hr in a day.

I have learned english for 9 years and japanese for 3 years and i think my japanese is better than my english. Fast forward 2 years, never had a chance to use my japanese and now my japanese is all over the place. Of course i still understand some by listening. But reading/writing? oh damn it is hard. I can only remember few kanji. Right now i am learning japanese from scratch again and planning to take JLPT this year.

Some example of insignificant things i do everyday to use japanese:

• Counting with japanese. example: doing payment, red light to green light countdown, when seeing time/day/month, counting stairs.
• Responding with japanese. example: when you see something awesome you don't say "AWESOME" you say "すごい！", commenting to anything you see or read with japanese (by saying it).
• Read an article in japanese any article really. One of my favorite: https://matcha-jp.com/easy , it has furigana so you can see kanji writing and know how to read it. Also if you can, read it aloud. Install this on chrome browser.
• Install japanese keyboard on your os. This will make it easier for you to write kanji by typing it's on-yomi/kun-yomi with hiragana.
• Repeat something in japanese or translating something to japanese. It can be anything, like airport announcement or something from ad boards.
• Always keep dictionary handy. Apps or dictionary book. I use Aedict and Kanji Recognizer when i am out. But my favorite one would be this.
• Watch anime or dorama that has toggle-able subtitle .i prefer dorama because they use real life japanese conversation, not all so choose wisely. Watch it first without subtitle, then watch it again with one so you will know how much you understand. Use light genre/theme like daily life or high school life. Don't choose something like FMA Brotherhood (try watching 1st episode without subtitle @_@)
• If you can get on one of raw manga you can do same thing with anime/dorama above. But this time you will see more kanji, use dictionary, and know how to use and write it.
• When listening to jmusic try to translate it by yourself first. If you want to sing it, find lyric that use kanji. Read the kanji lyric and listen how that kanji sound/pronounce.
• As for game, choose any japanese game. Be it action, jrpg, anything that include japanese dub and sub. You can also do this with any game that support japanese (eg. Skyrim). On first playthrough use Japanese dub, with english sub. If you are confident you can switch off subtitle. Second playthrough use japanese sub. I never do 2nd playthrough right after my 1st playthrough as it will lead to burnout. Instead, play 2 or 3 other games 1st playthrough. Then do your 2nd playthrough.
• Allocate time to practice writing kana and kanji. It doesn't matter how long. I only use maximum 1 hour. Sometime i write 6 new kanji sometime less than that. Do a review of what you have learned for this week by using AnkiCards(flashcards) or use many available japanese learning apps
• To same thing as the above for grammar. Just learn 1 grammar for a day. You can use Taekim or Minna no Nihonggo. I prefer minna as it is really beginner friendly.

You don't have to do all everyday, just do what you can. IMPORTANT: START SMALL. And then add up to that everyday. One thing that will significantly make you learn faster would be speaking to native speaker. To find a native speaker that want to help you is another task by it self.

I know that it is really hard taking that first step, just hang in there. Eventually you will find joy and your own way in learning this language.
If you want we can make japanese club / learning group for fellow gamer. I need learning partner my self :)