[From Start to Launch] Unity Casual Mobile MMORPG (M2)
This is a course where you will learn all the technologies for online games by following the development of the <Casual Mobile MMORPG> M2 from start to finish.
372 learners
Level Intermediate
Course period Unlimited

News
35 articles
https://inf.run/epLrc
Schedule: Friday, March 27, 2026, 8pm–10pm
Location: Inflearn Live
Hello, this is Rookiss.Due to the invasion of AI, many professions including programmers and accountants, which were once considered safe zones, are disappearing into history.
The current invasion of AI is already chaotic and shocking,
but from a macroscopic perspective, this is merely a scout.
This is because Physical AI, which will arrive in two years, can be seen as the main force of the AI invasion.
Once the invasion of Physical AI, represented by autonomous driving and robots, begins,
'most' of the tasks humans can do, including taxi/transportation/delivery/manufacturing/serving, can be replaced. What does this mean?
It doesn't just refer to 'some' professions like programmers, accountants, and lawyers.
It means that almost all jobs commonly held by people will be under direct invasion.
Even working a short-term part-time job at a convenience store or doing early-morning logistics work at Coupang
could become a luxury no longer permitted to humans.
Far from landing a job at a major corporation or buying a home in Seoul,
a situation may arise where you have to worry about your next meal today.
Looking back at human history, we will feel deeply that food, clothing, and shelter were never things to be taken for granted.
As the dissatisfaction of marginalized people erupts violently into chaos, further destabilizing society,
you might find yourself reminiscing about the past, grateful that you fully enjoyed the most peaceful era in human history, even if only for a short while.
When the era comes where humans command robots and robots do the work,
the meaning of a nation will fade significantly, and it would not be logically strange for an era to arrive where a small number of capitalists
manipulate humanity.
For example, wealthy Mexican cartels
could become more powerful than government forces by commanding robot armies.
No matter how brilliant a person is, they eventually die, and their knowledge is not perfectly transmitted.
However, the knowledge of AI is passed directly to other AI, meaning it can never regress.
Once you fall behind in the AI war, the gap will only widen, and a reversal will inevitably become increasingly difficult.
It is likely no coincidence that all big tech companies at this point are staking their lives on the AI war, even if it means manipulating their books.
The future I envision is also not bright.
However, rather than such a future arriving suddenly one day, there will certainly be a period of transition.
And this transition period might be the last opportunity to determine my future status.
Being swept away by the first wave of LLMs because you weren't prepared
is a flow of the times that truly no one could help.
But if you fail to prepare at all for the clearly predictable second wave of Physical AI,
then you must bear some level of responsibility yourself.
So, to survive in the future society amidst such chaos, what specifically should we prepare for?
I am holding a seminar to predict the changes coming in the future and organize what to prepare and study,
covering both short-term & long-term plans.Hello, this is Rookiss.
https://inf.run/bD3b7Today, after a long hiatus, [Unreal Agent from Scratch]—the result of Liu's research for a full 6 months—has been released as Early Access.
Please take a look at the amazing results you will complete in this course.
This course is not just a one-time follow-along using an MCP someone else made.
It is a course where you master fundamental technologies by implementing the Agent - Tool - MCP stages from scratch.
To summarize in one sentence, you can think of it as building an Agent like Claude Code from the ground up.
In the not-too-distant future, an era may come where games are developed with just a single "click" request.
Therefore, we have entered an era where we must continuously observe the advancement of AI,
and everyone must possess AI utilization skills as a basic literacy.
Although this course is themed around [Unreal Engine Agent],
knowledge of [Unreal Engine] is not required because it is not a course specifically specialized only for gaming.
Rather, since it is a course that demonstrates real-world examples of creating and utilizing Agents
using [Unreal Engine]—which is much more difficult than general Agents—as the subject,
if you understand this content overall, you will gain the ability to utilize
Agents in any field.Please refer to the course introduction for more details.
Thank you.
Hello, this is Rookiss.
https://inf.run/18sC4
Recruitment for the March 2026 class has begun!
Topic: ComfyUI 3D Model Generation and Polishing Using Generative AIThe goals for 2026 are to develop a hyper-casual game in June and Duckov as a solo developer in December.
To secure a solo development cycle that includes not only code but also major art assets like models,
generative AI lectures centered on ComfyUI are being held in the first half of the year.
In February, we explored the basic concepts of ComfyUI and generative AI-based image generation.
In March, we will focus our research on '3D models,' which are more interesting from a game developer's perspective,
and steadily prepare to create games like hyper-casual titles and Duckov.
[Key Contents of the March 2026 Class]
- Local/Remote-based 3D model generation pipeline with ComfyUI
- Analysis of pros and cons of paid vs. local models (texturing, rigging, animation, etc.)
- Testing generated assets in Unity/Unreal
Live Schedule: February 28, 2026 – March 22, 2026 (Sat/Sun 8pm–11pm, 8 sessions x 3 hours = 24 hours)
Tuition:660,000 KRW ->330,000 KRW
The following is a list of planned lectures (subject to change):
- Local/Remote-based Video generation pipeline with ComfyUI
- Python programming learned through ComfyUI workflow automation
- Practical Unity/Unreal hyper-casual game development (assembling/placing previously created generative assets)
Notes:
- Classes are recruited as individual modules so you can pick only the topics that interest you.
- Accordingly, the previous "alumni discount" system has been discontinued.
Regarding UE5 TechLab:
- The [UE5 Tech Lab], which was operated in parallel as a pilot, will be operated separately in the future as the difficulty level is not suitable for general students.
- The main target audience is professional programmers, and recruitment will be conducted for a small selected group (20-30 people).
- Content is being prepared forthat even professionals often only imagine but hesitate to challenge due to uncertainty, such as [Iris-based MMORPG Implementation], [UE5 MCP Server Production], and [UE5 Distributed Server Production]. Unlike general lectures, the value of these technologies is different and R&D alone takes several months, so a separate notice will be posted once recruitment begins. mà ngay cả những người trong ngành cũng thường chỉ tưởng tượng chứ không dám thử thách vì thiếu tự tin như [Triển khai MMORPG dựa trên Iris], [Xây dựng máy chủ UE5 MCP], [Xây dựng máy chủ phân tán UE5] đang được chuẩn bị. Khác với các bài giảng thông thường, vì giá trị kỹ thuật khác biệt và quá trình R&D mất tới vài tháng, chúng tôi sẽ đăng thông báo riêng khi bắt đầu tuyển sinh. Thank you!
Hello, this is Rookiss.
We are starting recruitment for the 3rd cohort
(January 2026 session) of the Rookiss AI Creative GameDev Challenge.
Recruitment Period: December 19, 2025 (Fri) ~ December 28, 2025 (Sun)
Challenge Period: December 28, 2025 (Sun) ~ January 24, 2026 (Sat)
Particularly from this cohort, we will be operating a combination of Unity Indie Lab and UE5 Tech Lab. Please refer to the link for detailed information.
https://inf.run/K8JqR[Unity Indie Lab] Cat Management Simulation
Instructor: Rookiss
Live Schedule (40+ hours)
- Mon/Wed: Data Structures & Algorithms with Illustrations (Beginner, 8pm~10pm)
- Tue/Thu: C# with Illustrations (Introduction, 8pm~10pm)
- Sun: Cat Management Simulation (Intermediate, 8pm~10pm)
I used to be a huge fan of various management simulation games made by. The graphics were simple, but the gameplay was excellent, and I was impressed by the company's business direction of creating similar games with different themes. I did think that if the graphics were just a bit cuter, they might have gained more mainstream popularity. On the other hand, there was a game that caught my attention immediately because the graphics were so adorable. A prime example is made by TREEPLLA. Games featuring cute and fluffy cats have already established themselves as a mainstream genre and are loved worldwide without any polarizing opinions (cats are love, after all!). In this session, I plan to provide a sample game by transforming Kairosoft's , one of my favorite games, into a cat-style version. Even in seemingly simple games, there's plenty to learn, such as and . Let's grow our skills by studying C# and data structures & algorithms on weekdays, and immerse ourselves in cat game development on weekends to achieve both short-term and long-term growth. Most importantly, if you can learn with Nano Banana using assets created directly by the Rookiss team and extract your own art resources... isn't the direction for solo game development already right in front of us? [UE5 Tech Lab] Counter-Strike Recreation (Part 1)
Instructors: Liu & Haker
Live Schedule (12 hours)
- Sat: Counter-Strike Recreation with Liu & Haker (Advanced, 8pm~11pm)
[Core Technologies Covered in This Project]
- Iris: Concepts, usage, and network optimization of next-generation networking
- CharacterMovementComponent: CMC concepts, network synchronization, and custom code implementation
- UAF: Concepts and utilization of the next-generation animation framework (subject to change)
- Gameplay Ability System: GAS concepts, usage, and network synchronization
- Server Rollback Hit Detection: Implementing fair bullet hit detection, the most challenging technique in FPS
When Unreal Engine transitioned from 4 to 5, it brought revolutionary changes to rendering.
Nanite, Lumen - the graphics paradigm shifted.
So what will change in the transition from 5 to 6?
This time, core frameworks that directly impact the content level are being completely renewed.
Iris, UAF, and other core logic systems we use daily are being completely redesigned.
In particular, Unreal's network system, which can be called the heart of the engine, has evolved beyond the limitations of the existing structure
into a next-generation framework called Iris.
This technology has already been validated through real-world application in Fortnite for the past two years.
Learning these technologies after Unreal Engine 6's official release will be too late.
Many next-generation technologies have already been released at beta level.
As an Unreal developer, you cannot stop evolving.
In this course, we won't just learn 'how to use' next-generation technologies.
We'll understand why these advancements were made, including their background and core concepts.
And we won't stop at learning.
We'll develop CounterStrike ourselves and apply all the technologies in practice.
I'll organize and share with everyone the many technologies I've researched this year,
and with Haker's guidance, we'll explore together
the future of Unreal Engine technology as envisioned by Korea's top-tier engineers.Hello, I'm Rookiss.

We are announcing the release of a new course.
- Topic: Diablo 1 PCG Dungeon Generation Algorithm
- Instructor: Hong Sabu
- Link:https://inf.run/KpDrq
===============================================The gaming industry is experiencing significant changes due to generative AI.
Success stories from small teams that have maximized AI utilization,
such as Escape From Duckov, continue to emerge.
The greatest advantage of generativeAI is time savings.What would take a person several months to create, AI can finish in just a few minutes.
It's particularly excelling in areas like character modeling and animation.
However, AI doesn't do 'everything' yet.Especially when creating game maps or utilizing specific features of a game engine,
it still inevitably requires human intervention.How can we ensure game quality while minimizing human effort?
There could be various answers, but our Rookiss R&D team believes that
as the AI era approaches, the value of Procedural Content Generation (PCG) technology willI expect it to continue increasing.
The dictionary definition of PCG is as follows:
- Procedural: According to rules/procedures
- Content: Game content
- Generation: Create!In other words, it's a technology that uses specific computer algorithms to generate infinite content.
In fact, PCG technology is already being utilized in various games.
- Diablo -> Dungeon generation
- Minecraft → Infinite random world generation
- Hades → Ever-changing room structures
- No Man's Sky → Planets, creatures, terrainTo conduct related research, I contacted various industry professionals
and ultimately recruited programmer, a former Com2uS employee, as an R&D team member.
The first topic is to recreate the dungeon generation code from
Blizzard's, which is my favorite game of all time and inspired me to dream of becoming a game developer. Over a period of 3 months, I gathered various information and
reconstructed the PCG dungeon algorithm fromto work in C# and Unity 3D environment ,
and the art resources were also carefully crafted through dedicated outsourcing personnel.<홍사부> will be researching and sharing various technologies that support game development in the AI era, such as PCG / Motion Matching,
and more.Thank you!
Hello!
People say that in the AI era, everyone should become a one-person company.
Startups and entrepreneurship used to feel like distant topics,
but now it's time to start showing some interest.Today, as the final lecture of Rookiss AI GameDev Challenge #1,
we will conduct a live seminar on the topic of [Introduction to Startups] to share the pros and cons of entrepreneurship.This seminar isn't limited to just games and will be conducted entirely live.
Date: 2025/11/26 (Wednesday) 8pm~10pm
Location: Discord Live Broadcasting Room
https://discord.gg/69z5HCBb
Topic: Things I Wish I Had Known Before Starting a Startup
The seminar will cover the following general content:
- [1] Reasons for Considering Entrepreneurship: Life Philosophy
- [2] Reasons for Considering Entrepreneurship: Reality
- [3] Common Misconceptions About Entrepreneurship: Is Starting a Business Always Risky?
- [4] How to Get Started with Entrepreneurship?
- [5] The World You See When Running a Corporation: Taxes
- [6] The World You See When Running a Corporation: PeopleHello!
https://inf.run/mba1v
AI Creative GameDev Challenge Season 2 will be starting soon.
In this session, we'll extract 3D assets, learn Unity basics,
and take on the challenge of creating a hyper-casual runner game.
The course is divided into MainQuest, which proceeds with AX clicks,
and SubQuest, which focuses on learning fundamental techniques.
The goal of this cohort is to build a Unity framework
and develop the ability to create AI content as quickly as possible.
We initially planned to provide only recorded versions for SubQuest,
but we've changed our plan to conduct all possible lectures live as well to improve students' concentration.
[Main Quest]
November 30th, December 7th, December 14th, December 21st
(Every Sunday 8pm~11pm, 3 hours x 4 days = 12 hours)[Key Content]
- 3D Resource Extraction
- Hyper Casual Development Using AX: Runner Genre Game Development[Sub Quest]
December 1-4, 8-11, 15-18, 22-25
(Every week Mon-Thu 8pm-10pm, 2 hours x 16 days = 32 hours)[Key Content]
- Complete journey from Unity basics to framework creation
- Supporting content including shaders, Blender, etc.
Looking at the current state of the gaming industry, Christmas is a luxury.
Until I can develop a game at the level of Escape From Duckov as a solo developer,
let's think of it as going into intensive training and have another fulfilling December.
Thank you!Hello
Rookiss AI Creative GameDev Challenge #2 recruitment has begun.
Please refer to the link for detailed information.
https://inf.run/mba1v
The 1st cohort is still in progress due to unexpected issues like business registration that delayed the schedule,
and the 2nd cohort starts recruitment today and will begin classes on November 30th.
Also, the topic covered in the 2nd cohort has been decided as [Hyper Casual: Runner Game].
Moving to 3D, we will compare various 3D generation tools such as Meshy/Tripo/Varco/Hunyuan,
and ultimately proceed with Hunyuan as the main tool.

Following the recent success of "Duckside," the dominance of small-scale games utilizing 3D AI continues to persist.
Moving forward, we plan to focus our challenge direction on 3D games as well,
with the long-term goal of creating well-made 3D games utilizing AI.Thank you!

