AWS offers a comprehensive suite of products and services that provide solutions to the everyday problems of game development, such as building scalable game servers that span across the globe, building robust analytics pipelines that provide valuable contextual insight into your player ecosystem, and creating cross platform core game backend services that serve as the backbone for key digital features your players have come to expect. AWS can handle any kind of game type across all platforms and genre for your development needs. • About Speakers • Gaming customers references • Best practices • Korean gaming customers’ journey on AWS • Why they chose AWS? • Dive deep into best practice architecture Speakers: HwanBin Kang (KR Gaming team – Sr. Account Manager) Sungsoo Khim (KR Gaming team – Sr. Solutions Architect)

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HwanBin Kang (KR Gaming team – Sr. Account Manager)
Sungsoo Khim (KR Gaming team – Sr. Solutions Architect)
Korea Gaming Industry Best
Practice and Experience Sharing

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Agenda
• About Speakers
• Gaming customers references
• Best practices
• Korean gaming customers’ journey on AWS
• Why they chose AWS?
• Dive deep into best practice architecture

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About Speakers
姜 換 彬
Sr. Account Manager
Worked with KR gaming
companies since 2014
金 聖 洙
Sr. Solutions Architect
Worked with KR gaming
companies since 2017

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All of top 15 companies are using AWS in Korea
500+ KR Gaming companies are using AWS

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AWS helped smooth mobile transition
from PC online game

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Many of Korea gaming companies are
delivering success stories in global

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Also, many Korean games are very
successful in HongKong

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Using Tokyo region for HongKong service – KR games
• PUBG is no.1 PC online game in platform with more than
3M Concurrent users(CCU).
• Developed on AWS, running on AWS
• Using Tokyo region for HongKong service
• No.1 mobile game in Korea in 2017.
• Generated approx. $1B in 2017 with single game in global.
• Using Tokyo region for HongKong service.
• Nexon’s first mobile game ranked no.1 in gross chart.
• Awarded as best game in 2016 in Korea.
• Using Tokyo region for Korea and HongKong service

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Latency between Tokyo region and HK
is good enough to service high quality
games!

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Best Practice #1 – Players Unknown Battle Ground(PUBG)
1. Dramatic & unexpected success in global : Daily CCU
Without AWS, PUBG cannot deliver huge success in global
– Kevin Yoo(Bluehole head of Tech)
Detailed events in 2017
April 20th 100K CCU
June 4th 200K CCU
July 30th Service failure just before half million
 According to the reasons of failure, it is determined that we couldn’t hold
600K users
 Began to think about the incensement of users seriously
 Started the “Project million”
Aug 27th 870K CCU
 Surpassed “DOTA 2” Ranked as the first at the Steam
 Started the “Project two million"
Sep 23rd 1.5M CCU
Oct 11th 2M CCU : Started “Project four million”
Dec 30th 3M CCU
2. Developed, operating and analyzing on AWS
- Using DynamoDB as main DB
- Using AWS native services in backend to reduce development time

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Best Practice #2 – Durango(mobile MMORPG from Nexon)
• Most successful mobile game in Nexon’s(#1 gaming company in Korea) history
• Developed 5+ years on AWS
• Using various cloud native services
Aurora, ECS, Lambda, Kinesis, EMR, Elastic Search, Elastic Cache, SQS, S3, ELB, Route53 and etc

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Similarities between globally successful games
1. Targeted global from development stage
2. Using AWS from development stage
3. Launching games on AWS
Using Tokyo region instead of Seoul region to maximize global coverage in single MMO world
4. Analysis data on AWS and reflect requirement in games

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Korea gaming customers’ journey on AWS #1
Using AWS for global mobile game service : 2013-2014
Gaming customers’ experiences
¤ Fully understand benefit on cloud service : Can easily expand to global
¤ AWS is best cloud service among various cloud service provider

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Korea gaming customers’ journey on AWS #2
Using AWS for mobile Korea mobile game service : 2015
Gaming customers’ experiences
¤ Using Tokyo region : Latency between Korea and Tokyo is average 40-50ms
¤ Up to 100ms of latency is enough for most of mobile games

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Korea gaming customers’ journey on AWS #3
AWS Seoul region launch : 2016

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Korea gaming customers’ journey on AWS #4
Expand AWS adoption into PC online games : 2016
Gaming customers’ experiences
¤ AWS is providing enough computing power for PC online games
¤ Trying to develop global one world MMORPG games using AWS global network

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Korea gaming customers’ journey on AWS #5
2016-2017
 Start to close oversea on-premise datacenter
 Start to close Korea on-premise datacenter from mid- sized
gaming companies

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Korea gaming customers’ journey on AWS #6
Start to develop cloud native games after many cloud
native games’ success
Gaming customers’ experiences
¤ Understanding AWS is very important to develop game as more fault tolerance
¤ Cost effective

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Korea gaming customers’ journey on AWS #7
AWS usage from Korea gaming companies have been
growing for x10 during last four years

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Why gaming customers are choosing AWS?
1. Have a best global coverage
2. Most reliable cloud service : Availability and Multi-AZ
3. Can support enough capacity in case of huge success
4. Experiences on gaming customers
5. Various unique features for gaming companies
: ex) inter-region VPC peering, Aurora Multi Master, NLB/ALB and etc

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Pls think of this…
1. Think big! Think bigger market! Think global!
 Design and architect games targeting global
2. Latency is NOT first. Think of latency between US west and east.
 Latency between inside of US is worse than Tokyo and HK
 Without this consideration, AWS HK region is coming soon.
(*) So, You can START to develop games on AWS
• Gaming companies need to develop games targeting global.
• Then, you need to design games overcoming latency at least up to
100ms.
• AWS is best choice and partner for your service. AWS is dominating
global gaming infrastructure market and I recommend to check why
and listen other global gaming companies feedback.

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Best Practices

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Best Practice reference architecture

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Why these two?
1. Large scale
deployment
2. Makes very good use of AWS service component
3. Everybody loves these games! (Fun to play!)

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Best Practice reference architecture - PUBG
Game server doesn’t communicate with the database
If a game session is completed, a game log is uploaded to AWS S3.
The request of BP payment is sent by AWS SQS
The ranking service calculates the ranking with uploaded game log.
 ELO ranking can’t be calculated before a round is completed
Players from all around the world
 people do not want to wait for everyone to finish, for their
rewards
 there are 100 players per game

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Best Practice reference architecture - PUBG
If you can, go for microservice
PUBG started with 8 internal services, now (2017, Sep) it has 23
> Result of Project Million
As a wise person once said, most responsive to change
will survive
So?
Service Discovery and SQS for message queue between
servers (every async message processing)

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Best Practice reference architecture - PUBG
Most important component: SQS
Slow, but not as slow as you think!
Can store as many as you can send
Consistent response time, regardless of the quantity of
Unless you delete it, it is there
Reliable!

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Best Practice reference architecture - Durango
Real time simulation of the sandbox game
Made with Python (Really?)
How?
Soooooooooo many data
How do we sync the data between servers?
SQS and Kinesis
Think of smooth data flow, not instant response

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Best Practice reference architecture - Durango
Thing to say on Durango is:
1. They benefited flexibility of cloud
2. How fast can your “burst” burst, without self-exploding?
• Hundreds and thousands of servers x n!
3. Limit increase fast enough?
4. Use your TAM
5. Can do so many things in an instant by automation
• Use cloud formation
• EKS – Kubernetes
• Terraform

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Best Practice reference architecture
Just remember,
1. If possible, choose cloud native solutions
• Local solution might have *some* advantage, but in the long run,
cannot sustain
2. Have flexible instance size in mind
• m4.large to c5.xlarge or r4.xlarge depending on memory/ cpu
requirement
3. Many instance types can burst up to 10Gbps
4. If using Windows, don’t forget to keep the AWS driver up to date!
5. Using c5 or m5 will provide improved performance CPU/ IO

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Q & A