Hi Zizulot,
To give you a brief understanding about the market, players in South East Asia, I would say the hard core ones, are usually fan of MMORPG and also MOBA. Especially players in Thailand/Vietnam, most of the hard core players are from these two countries and they're willing to spend lots of money for great games. You can actually check via App Annie to see that genres that fare better are usually RPG and MOBA. Story wise is not really important because these players are so accustomed to MMORPG they would have known how to go about the game themselves rather than reading the stories. There are also casual game players but these players usually reside in Indonesia and Vietnam (I'm talking about paying users), so if your game is more on the casual genre, you might wanna consider these two regions.
Local Payments also plays an important role because most of the time, you don't see much metrics for South East Asia because of the limited payment method available. Credit Card penetration is low in these countries, hence, you'll need to do things locally, like provide local payment solutions such as scratch card, telco billing etc. Most of the users in the South East Asia region are accustomed to get their game/apk from third party platform hence it is not surprising to see that third party platform fare better than mainstream platform. So if you want to penetrate into this market with your game, it's better to engage with third parties.
Also, when you want to publish your games in this region, it is important to take note that your content should not religion-sensitive or political sensitive cause the users here are multi-cultural and some of the government has certain restrictions on political content as well. Hence, it is best not to have any of these information inside.
If you're still unsure on how to go about publishing in South East Asia, feel free to drop me an email via
[email protected] and I'll be happy to guide you about it.