ACECUBE StudioAI-Augmented Game Production

Re-engineering how
games get built.

We take proven games, run them through an AI production pipeline, and move them onto new platforms and global markets.

Elite full-stack engineers vertically integrate engine · server · content · operations inside a single team.

Start a ProjectSee Godius Remaster

Not a typical game studio.

ACECUBE is a company that redesigns game production systems. An engineering house that has built and operated MMORPG, action, RTS and strategy simulation titles on PC, console and mobile — our AI integration starts from field experience.

The result is a production density large studios struggle to match — fast iteration, a minimal gap between design and implementation, and DevOps and live service architecture handled directly by ACECUBE.

Engine / Client · Server / Account · World / Content · AI Review Loop · Live-Ops / Flags · Build Pipeline · 2D / 3D Rendering

01

Deep Engine Heritage

Client engine, server, tooling, content pipeline, live service — we have covered the full cycle, launch and the operations that follow, across every genre. Not a team that borrows someone else's engine, but a team that has built one.

02

AI as Production Multiplier

We do not confine AI to art or text generation. Balance review, QA, narrative checks and data validation are built into the pipeline — so one engineer finishes what used to take a team.

03

Compact Team, Same Page

A concentrated team communicates precisely. Designers and server engineers speak the same language, and decisions turn into implementation immediately. No handoff delay, no lost context.

Engine ╳ Server, led in parallel.

The person who built the engine and the person who built the server stand on the same stage. Thirty years of engine work, twenty years of server work — two CTOs, each accountable for their domain end to end.

Twin CTO

Jang Eon-il

Oneal Jang
CEO · CTO/Client & Engine

Engine architect with 30 years in the field. Designer of the RF Online R3 Engine and the Zerodin Engine.

An engine architect who has been writing game code since 1994. At CCR he designed and led the R3 Engine behind the MMORPG RF Online, work that won the Korea Game Awards. He then founded Zerodin Games, built the Zerodin Engine himself, and led a mobile RPG lineup running on that proprietary engine. At Wemade XR he handled server optimization and stabilization for Legend of Ymir and Unreal engine optimization for Icarus M. In April 2026 he joined the launch of Acecube, where he directs the new lineup.

Career

  • 2026.04–Present
    Acecube — CEO / CTO
    Directs the new lineup, including Godius Remaster
  • 2017.03–2026.04
    Wemade XR — Technical Director
    Icarus M (2018) Unreal optimization, Legend of Ymir (2025) server optimization
  • 2013–2016
    j2jlab — Founder · CTO
    Mobile RPG on a proprietary engine — Heart Castle (2016)
  • 2006–2012
    Zerodin Games — Founder · CEO / CTO
    Designed and built the Zerodin Engine
  • 1999–2006
    CCR — Development / Technical Director
    Designed and led RF Online (R3 Engine) — Korea Game Awards
  • 1994–
    — — Game Programmer
    Began his career in game programming

Works

  • Legend of Ymir — Server optimization at 100K CCU domestic · 170K CCU global
    2025
  • Icarus M — Unreal Engine optimization
    2018
  • Heart Castle — Mobile RPG on a proprietary engine
    2016
  • RF Online — R3 Engine design · Korea Game Awards
    2004

Core Stack

Engine Architecture · Rendering / Shader · MMORPG Server · Cross-Platform (PC / Mobile) · TCP/IP · MySQL / Redis · AWS / Azure · AI Agent Orchestration

Ahn Myung-dal

Myungdal Ahn
CTO/Server & Network

From real-time action games to global SLG and MMORPG services.

A server and multiplayer engineer with 20 years across mobile, PC and web communities, starting from a PC online versus-action game in 2002. He was lead programmer on the Metal Slug Online TPS, server team lead on Gamevil's mobile SLG, and server team lead on the Zenonia MMORPG (Korea · Taiwan), working across IOCP, UDP P2P and node-based backends along the way. An engineering builder by background: he developed his own network game production IDE and physics synchronization engine.

Career

  • 2026.04–Present
    Acecube — CTO
    Directs server architecture for the new lineup
  • 2025
    Zenonia MMORPG — Server Team Lead
    Mobile · PC
  • 2018
    Gamevil Mobile SLG — Server Team Lead
    Mobile · PC
  • 2014
    Grandpas Over Flowers / Accel Scandal — Development
    Mobile games
  • 2006–2007
    Byeolmaru / Side-Scrolling MMORPG — CTO
    Web / PC games
  • 2002
    Milman Online — Lead Programming
    PC online versus action

Works

  • Zenonia MMORPG — Global service
    2025
  • Gamevil Mobile SLG — Global service
    2018
  • Metal Slug Online — Game engine · production tools
    2010
  • Milman Online — Game concept · lead programming
    2002

Core Stack

IOCP Server · UDP P2P · Unreal · Unity3D · In-House DirectX / OpenGL Engine · DevOps CI/CD · In-House Network IDE · Physics Sync Engine · AI Agent Orchestration

Production depth across the full stack.

From game engine to live service — full-stack technical modernization.

Game Production Engineering

World data, NPC state, quest engine, combat, account flow, build pipeline — we build entire online game systems from the ground up.

Engine · Server · World Data · Content Tooling

AI Production Integration

AI is built into every production stage. Automated balance review, narrative passes, asset QA — plus the feedback loops that hold quality while the pace stays high.

AI Review · Content Gen · Balance Check · Feedback Loop

Live Operations Architecture

Live service ready from day one. Event systems, rollout gates, real-time monitoring, and operator tooling for games meant to run for years.

Live-Ops · Event Flags · Incident Response · Scaling

How AI runs through every stage.

03 · CAPABILITIES — AI PIPELINE

Design Brief

Scope, risk table and approval criteria are defined. AI pre-checks internal consistency and balance signals.

Build

Engine, server and content work runs in parallel lanes. AI reviews every commit for contract violations in real time.

AI Review Pass

Balance, narrative tone, NPC behavior and data schemas are validated automatically. Flags route to a human review queue.

Human Gate

Every item AI flags is checked and approved by an owner. The live deployment gate opens only once the reasoning is on record.

The last gate in any automation is always a person.

Ship

Staged rollout with live-ops instrumentation switched on. Event flags and log tracing are ready from day one.

Every layer of the stack.

Engine · server · tooling · AI · live-ops — we design and operate every layer of the stack ourselves.

Engine & Client

  • Online Game Engine
  • Client Architecture
  • Combat Systems
  • Quest / NPC Engine
  • World Data Design
  • Economy / Balance

Server & Backend

  • Server Architecture
  • Account / Auth Flow
  • State Synchronization
  • Database Schema Design
  • Session Management
  • API Design

Build & Tooling

  • Build Pipeline
  • Content Tooling
  • Asset Pipeline
  • CI / CD
  • Containerization
  • Profiling / Debug

AI Integration

  • AI Review Loops
  • Content Generation
  • Balance Automation
  • Narrative QA
  • Data Validation AI
  • Feedback Instrumentation

Live Operations

  • Event Flag Systems
  • Staged Rollout
  • Live Monitoring
  • Ops Tooling
  • Incident Response
  • Log / Trace Design

What we ship.

LIVEFLAGSHIP · LIVE 2026.06 · PC · STEAM

Godius Remaster

Godius Remaster — engine · server · ops, every layer rebuilt.

A Korean 2D MMORPG of the 2000s returns — this time worldwide, on Steam.

A global Steam remaster of Godius, the 2D MMORPG that has run in Korea since its launch in 2000. The original 800×600, 256-color, fullscreen-only DIB renderer is replaced by a D3D11 9-pass GPU pipeline with windowed and resizable support, and every layer above it is built new — in-house ImGui editor, automated multi-language UI, Steam integration and web ops tooling.

The goal: keep the original assets fully compatible while raising lighting, water, particles, post-processing and hit feel to modern engine standards.

Play on SteamLIVE 2026.06 · Steam featured game
Godius Remaster — in-game
Engine & Visuals

Eighteen engine systems, rebuilt.

53 fps
@ 1000 PCs
21 / 21
Stress Pass
Render7
  • D3D11 9-Pass GPU Pipeline — Original 800×600 256-color fullscreen DIB → shader-based true color with windowed / resizable modes. Separate passes for background / water / sprite / lightmap / Additive / post / particle / UI
  • Full Lighting System — Lightmap (1/4 RT multiply) + Additive Light (GPU additive) + Floor-Only (Occluder Mask) + Player Light, pool-based, up to 256 lights
  • 24-Hour Day/Night Cycle — Real-time sync on UTC, 10-band ambient Lerp, indoor maps skipped automatically
  • Water Rendering — Diamond clipping + two-stage shader (overlay / refraction + caustics) + 512-tile batching. Six presets: River / Ocean / Swamp / Lava / Ice
  • Wind System — Vertex-shader sway with anchored roots (bottom 25%). Tree / Grass / Flag types, stored per object in .meta
  • Environment Particles — Seven presets — Rain / Snow / Fog / StormRain / StormFog / Firefly / Blizzard — 32 emitters × 2,000 particles
  • Post-Processing — Bloom (separable Gaussian, 2-pass) + 3D LUT color grading (6 presets) + context-driven vignette
Editor3
  • In-House ImGui Editor — GcX.exe -editor — offline map editing with no server dependency, 4 tabs (Map / Lighting / Environment / Effects), hot reload + Undo/Redo
  • Data-Driven Workflow — Every visual parameter externalized to .env.meta / .lgt / .lightpreset and similar files. Original assets (.fld/.sou/.fgp) preserved losslessly
  • Magic / Enhancement Effect Editor — Lighting presets for 36+ spells by element (fire / ice / neutral / dark / holy), with per-tier editing of enhancement effects
Feel2
  • Combat Visual Feedback — Screen Shake / Damage Numbers / Hit Flash / Hit Freeze externalized to combat_feedback.ini, simulated inside the editor
  • Client-Side Move Prediction + Slide Correction — Movement starts the moment input lands, server sync runs in the background. Hotfix for floor-tile sliding in live online conditions
Resolution2
  • DPI-Aware 4K Rendering — No dependence on OS DPI scaling; automatic scaling against the monitor's physical pixels (1080p 1.0x / 1440p 1.33x / 2160p 2.0x)
  • UI Scaling + Font Re-Render — Fonts re-rendered at final pixel size instead of upscaling UI bitmaps, outline/shadow kept in physical pixels, MainHUD anchor policy preserved
L10N2
  • Automated UI Localization — 418 .spr files with Korean text baked in → text extracted and composited at runtime through SafeBox / RichText for automatic multi-language support
  • Automatic Overflow Detection — Full static and runtime sweep for UI overflow candidates caused by length differences between English and Korean strings
Pipeline2
  • pak Packaging System — 30,477 files / 757 MiB → base.pak plus cumulative updates (00000.pak …) sealed in 50 MiB units, SHA256 integrity
  • Map Load Optimization — Package-mode entry time 15s → 8.9s (Phase 1) → further phases in progress. Driven by four-stage measurement
Engine Showcase

What the engine delivers — at a glance.

Before / After · Editor UI · Day · Night · Atmosphere · Lighting · Water · Particles · Combat — the engine core rebuild in eight frames.

Before / After
BEFORE / AFTER
Editor UI
EDITOR UI
Day · Night
DAY · NIGHT
Lighting Showcase
LIGHTING
Water Render
WATER
Env. Particles
PARTICLES
Magic & Effects
EFFECTS
Atmospheric Frame
ATMOSPHERE
Performance · Stress-Tested

Measured under load, not marketed.

The number that matters: 1,000 characters, each with different appearance and gear, rendered on one screen at an average of 53fps. CrowdLOD rendering (exact up close, proxy at distance) and SPR pool optimization raised 1000-player FPS roughly 6× over the first measurement (8.4→53) and cut memory to about a third (1.8GB→695MB). All 21 full cases passed.

GODIUS FPS Probe — Stress Test
53fps @ 1000

1000 players with distinct appearance and gear on one screen, averaging 53fps (varied 47fps)

695MB peak

Under 1000-player load, private memory stays below 700MB — down sharply from an initial 1.8GB

21 / 0pass / fail

Every case in the full stress test passed · zero crashes, zero timeouts

Players
Anim ModePlayersAvg FPSMin FPS (1s)peak MB
stand054.13353.396668.9
stand1053.59852.552672.2
stand10054.77354.39685
stand50051.60450.572685.8
stand100053.2652.812695.3
varied10054.52353.989685.6
varied50053.74653.184692.7
varied100047.03139.86687.7

Measured in both modes — all characters identical (stand) and all different (varied). At 1000 players, CrowdLOD splits rendering into ~270 exact up close and ~595 proxy at distance.

* GODIUS FPS Probe · offline single-client · private working-set memory.

Service & Ops

Fifteen global live-service systems, redesigned in parallel.

LIVE
2026.06 Steam
Zero downtime
Launch day
Global3
  • Native Steam Integration — Steam Session Ticket authentication + Steam Overlay payments + SteamID-based account system
  • Full UTF-8 / Multi-Language Architecture — Entire source moved from CP949 to UTF-8, database standardized on utf8mb4, Unreal NSLOCTEXT-style loc tables introduced
  • Unified UTC Time — The whole server time axis aligned to UTC for multi-region service
Infra5
  • 32 → 64-bit Migration / Native Linux — Windows-only build → dual Windows and Ubuntu builds, moved to a 64-bit memory model
  • Asynchronous DB Access — Synchronous mysql_query calls moved to a worker thread pool, removing game-loop blocking
  • Chunk-Based Visibility — O(n²) visibility search reduced to adjacent-chunk lookups, optimized for dense crowds
  • SaveServer Moved to DB — File-based saving replaced with a database, securing transactional and concurrency safety
  • Dynamic Map Server Pool — Empty maps among the 693 skip AI ticks and release their slots
Game Rule1
  • Signature RvR Restored — Unrestricted cross-nation PK brought back, with randomized nationality to prevent population imbalance
LiveOps3
  • Godius WebAdmin — A purpose-built web admin — chatbot · dashboard · map viewer · package manager in one unified console
  • Event Scheduler — EXP, drop rate and currency multipliers scheduled by the hour from the ops tool, restored automatically after a server restart
  • Content Toggles — Starting towns, regions and content opened in stages (scheduled by launch phase)
Observability2
  • GodLog + Pulse Crash Reporting — Unified logging, real-time monitoring and automatic client crash collection
  • Automated GCP Deployment Pipeline — Load-bot verification → single-command deploy
Launch1
  • Channel Distribution + Login Queue — Town crowding spread across channels, with a queue when a region exceeds capacity
Live Ops · Day-One Ready

A dated ops system, rebuilt on a modern observability stack.

Live service, ready from day one.

From data pipeline to visualization — ops automation · real-time performance monitoring · multi-language GraphRAG.

The ops infrastructure a simultaneous global launch demands, built in-house on an open-source stack proven in live operations.

Next.js · Grafana · ClickHouse · Prometheus · Loki · OpenTelemetry · Kafka · Mapbox GL · Kubernetes

Map viewer · real-time PC / NPC / Monster distribution snapshot
Map viewer · real-time PC / NPC / Monster distribution snapshot
Steam store · in-game packages
Steam store · in-game packages
Translation knowledge graph · GraphRAG-lite multi-language context
Translation knowledge graph · GraphRAG-lite multi-language context
AI ops bot · query ops systems and publish notices in natural language
AI ops bot · query ops systems and publish notices in natural language
Grafana · measured live load monitoring during CBT
Grafana · measured live load monitoring during CBT
Content scheduler · content / event toggles by the hour
Content scheduler · content / event toggles by the hour
Sky DominionMonster Festival
LIVEIN-HOUSE

Sky Dominion

Global HTML5 Browser MMORPG

MMORPG world systems, NPC engine, quests, accounts / billing, live-ops, web service portal — every stage built in-house on an AI pipeline.

MMORPGHTML5BrowserLive Service
LIVEIN-HOUSE

Monster Festival

Casual Monster Collection RPG

A casual RPG built on monster collection, training and battle. Multi-zone structure across field / tower / arena, auto-chess PvP, and an AI balance automation pipeline.

Casual RPGCollectionPvPMobile
UNANNOUNCED
IN PRODUCTIONPROJECT

2D MMORPG Mobile

Codename TBA · iOS / Android

A new project extending Acecube's 2D MMORPG expertise to the mobile form factor. RvR, guild and PvP systems proven on desktop are rebuilt from scratch for touch controls and short play sessions.

  • Genre2D MMORPG (Mobile)
  • PlatformiOS / Android
  • ReleaseTBA
UNANNOUNCED
IN PRODUCTIONPROJECT

3D MMORPG Mobile

Codename TBA · iOS / Android

A mobile reboot of a 3D MMORPG IP from the Korean MMORPG boom of the early 2000s. A next-generation title that reinterprets the original's world, combat and guild content for modern mobile devices.

  • Genre3D MMORPG (Mobile)
  • PlatformiOS / Android
  • ReleaseTBA

Updates.

CLASSIC MMORPG RENEWAL · 11 ENTRIES
2026.08LATESTCORP

D-U-N-S® Number registration complete

ACECUBE has obtained a D-U-N-S® Number, the international business identifier issued by Dun & Bradstreet. It gives us the verified global identity required for publisher and platform partnerships and for overseas contract due diligence.

2026.08.13LIVE

Godius Remaster summer event patch

The summer season event update went out to the live servers. Season content and the event schedule were applied with zero downtime through the content scheduler in the ops tool.

2026.07.09TECH

AI ops analysis and trend reporting system goes live

We built a system in which AI continuously analyzes live operations data, detecting unusual trading patterns, anomalous metrics and shifts in community sentiment, then reporting them to operators automatically. The AI raises the signal before an operator goes looking for it.

2026.06.27LIVE

Godius Remaster opens globally on Steam

Global service on Steam has begun. Operations ran stable with zero downtime from launch day, and selection as a Steam featured game confirmed the interest of players worldwide.

2026.06.20–21CBT

Godius Remaster second CBT completed successfully

The second closed beta test (June 20–21) finished successfully. Server processing and network synchronization held steady under concurrent load, and the fixes from first-round feedback were re-verified in live play conditions.

2026.06.14–16CBT

Godius Remaster first CBT completed successfully

The first closed beta test (June 14–16) finished successfully. Core content and the live ops pipeline were validated with real players, and the improvement items for the next test were identified.

2026.05.29SHIP

Steam “Coming Soon” build passes review

The Godius Remaster “Coming Soon” build passed Steam store review.

2026.04.27SHIP

QA begins on the Steam global build

Cloud servers provisioned; QA begins on the Steam global build.

2026.04.17BUILD

Network, localization and AI chatbots built

Network synchronization restructured, multi-language support added, and AI chatbots built for both operations and development.

2026.03.23TECH

Rendering engine and server foundation modernized

Rendering engine replaced, servers moved to a distributed model, ops tooling created, ClickHouse adopted — the technology base moved forward a full generation.

2026.03.03PARTNER

Renewal contract signed for a classic Korean PC MMORPG IP

A contract to run the entire program single-handedly — engine rebuild, vertical content integration, and global launch on Steam.

Dormant IP,
back in service.

IP renewals, new project briefs, technical advisory and investment inquiries all reach us at the single address below.

[email protected]