KRAFTON Inc. Tech Stack

Gaming studio group building multiplayer games and AI agents with LLM infrastructure

Computer Games Gangnam-gu, Seoul 1,001–5,000 employees Public Company

KRAFTON operates as a multi-studio gaming collective backed by a growing AI/ML infrastructure stack (PyTorch, vLLM, llama.cpp, LlamaIndex, LangChain, OpenAI API). The tech mix reveals dual execution: game clients across mobile and console (Unreal Engine 5, Unity, C++) alongside internal LLM research and agent development (CrewAI, SGLang). Pain points around LLM performance, real-time inference optimization, and training data pipelines suggest the studios are building proprietary AI capabilities, not just consuming APIs — a strategic play beyond traditional game development.

Tech Stack 76 technologies

Core StackFigma Adobe Illustrator PyTorch LangChain C++ Python FastAPI SAP 3ds Max Maya Unreal Engine 5 Unity Photoshop ZBrush Clip Studio vLLM llama.cpp SGLang LlamaIndex LangGraph OpenAI API CrewAI Unreal Engine Git iOS Android Excel PowerPoint Word Spine 2D+46 more

What KRAFTON Inc. Is Building

◆Challenges

Llm performance improvement
Improving internal workflow productivity
Real-time inference optimization
Visualizing ai usage
Managing global accounting issues
Scaling data pipeline for llm training
Improving data quality for pre/post training
Streamlining it asset lifecycle
Improving workplace environment maintenance
Centralizing tool usage

▲Active Projects

Mobile game client development
Subculture mobile game
Multi-modal llm data quality improvement research
Large-scale multi-modal llm training
Gaming agent development
Jungle education program operation support
Project aa
Project camp
Mobile collectible rpg game
Pubg: blindspot

Hiring Activity

Decelerating75 roles · 20 in 30d

Department

Design

Engineering

Research

Finance

Ops

Data

Product

Seniority

Mid

Senior

Intern

Junior

Manager

Lead

Notable leadership hires: Technical Director

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About KRAFTON Inc.

KRAFTON is a South Korean gaming collective of independent studios developing multiplayer and RPG titles for mobile platforms (PUBG: Blindspot, mobile collectible RPG, subculture mobile game). The organization spans design, engineering, research, and operations, with 1,001–5,000 employees based in Seoul. Active projects include mobile game clients, gaming agent systems, and multi-modal LLM training infrastructure. The company is investing in internal ML research alongside traditional game development, signaling a shift toward AI-driven game mechanics and tooling.

HeadquartersGangnam-gu, Seoul

Company Size1,001–5,000 employees

Hiring MarketsSouth Korea

Frequently Asked Questions

What game engines does KRAFTON use?

Unreal Engine 5 and Unity are core to development. The stack also includes Spine 2D for animation and specialized game tools (ZBrush, 3ds Max, Maya for art assets).

What AI/ML work is KRAFTON doing?

Multi-modal LLM training and data quality research, gaming agent development, and real-time inference optimization. Stack includes PyTorch, vLLM, llama.cpp, LangChain, and OpenAI API integration.