GTO Machine Hall
GREGTECH : ODYSSEY

GregTech
Odyssey

GregTech-Odyssey is a performance-optimized, tech-focused GregTech modpack dedicated to delivering diverse and challenging experiences built on modern GregTech. Featuring complex yet engaging custom machines and powerful functional hatches that dramatically boost production capacity.

INT×NParallel ArchSuper Molecular Assembler
<1msCalc ResponseSub-ms AE Overhaul
BIGINTStorage BreakthroughBeyond LONG Limit
ULV→MAXFull ExperienceAll Voltage Tiers

Explore the Universe

From space stations to mega multiblock structures — GTO delivers unprecedented visual impact

Space Exploration

Space Station.

A self-contained space station with integrated cosmic exploration — no longer just a crude platform.
Modular station components, each compartment serving its purpose. Assemble your interstellar outpost from scratch.

Space Station
Mega Space StationMulti-module Assembly · Specialized Compartments
Modular Station
Modular CompartmentsPrefab Components · Part-level Customization
Architectural Wonders

Mega Structures.

350+ multiblock machines where tech and magic coexist.
From Electric Blast Furnaces to the Stairway to Heaven — stunning particle effects and energy beams during operation.

Mega Structure
Mega-scale MultiblocksCornerstones of a Tech Empire
Mega Multiblock
Particle Effects & Energy BeamsDual Impact of Visuals and Function
Production Base

Production Bases & Facilities.

Large-scale industrial production, precision processing, and the ultimate resource — the Eye of Harmony.

Production Base
Production BaseLarge-scale Industrial Facility
Processing Facility
Processing FacilityPrecision Processing Center
Eye of Harmony
Eye of HarmonyUltimate Resource Solution

Performance & Optimization

Deep core system overhaul, squeezing every millisecond of performance

AE System Optimization

Super Molecular Assembler

Runs in INT×N parallel mode, dramatically boosting crafting efficiency

Sub-ms Calc Response

Deep AE system overhaul for instant computation and processing

Smart Loop Detection

Automatically detects and handles network circular references, preventing system deadlocks

Unlimited Storage

Uses BIGINT type, breaking through LONG quantity limits

Recipe Search Overhaul

Hash-based ingredient index tree for dramatically faster recipe lookups

Wireless Network Coverage

GT hatches connect to ME networks anywhere, no cables needed

GT Machine Optimization

Batch Processing

Significantly reduces server TPS consumption, improving stability

Parallel Logic Rewrite

Reduces crafting calculations from 4 per cycle to just 1

Numeric Breakthrough

All numeric designs break INT ceiling, supporting mega-scale production

Machine Combo Mode

Auto-switches machine modes during operation, avoiding stacking issues

Machine Modules

Some machines support installable modules for higher efficiency or special bonuses

Structure Check Optimization

Manual structure-check mode eliminates lag for mega-scale machines

Content & System Improvements

Rich game content, refined gameplay flow, and deep mod integration

New Features

New Mechanics & Systems

Thread Hatch

Run multiple threads in one machine, multiplying parallel count by N

Pattern Assembly Rewrite

Each pattern resource has independent space, no interference

Auto Pattern Doubling

Auto-doubles after AE dispatch, reducing order latency

Multiple Pattern Assemblies

Diverse choices from basic items to complex fluid management

Missing Crafting

Starts crafting even with insufficient materials; missing ingredients are awaited

Gameplay

A Complete Adventure

Full GT Experience

Covers all voltage tiers from LV to MAX

Quest Book Support

Quest support up to UEV tier

Mega Machines

300+ multiblock structures, from Electric Blast Furnaces to Stairway to Heaven

Visual Effects

Machine operation particles, energy transmission beams, and dynamic reaction displays

Adventure Elements

Fly immersive aircraft to explore dungeons and obtain rare resources

Mod Integration

Mod Integration & Compatibility

Deep Optimization

Extensive Mixin techniques to integrate and optimize dozens of mods

EMI System

New AE-linked features enhancing AE interaction experience

Magic & Tech Fusion

Use magic to accelerate tech machines and boost production efficiency

Organ Modification System

Deeply customize and enhance your character's mining speed, movement speed, and more

Curated Mods

Focused on the GregTech mainline experience, avoiding mod bloat

Start Playing!

Modpack download, installation, chat groups, and quick introduction