
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.
Explore the Universe
From space stations to mega multiblock structures — GTO delivers unprecedented visual impact
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.


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.


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



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 Mechanics & Systems
Run multiple threads in one machine, multiplying parallel count by N
Each pattern resource has independent space, no interference
Auto-doubles after AE dispatch, reducing order latency
Diverse choices from basic items to complex fluid management
Starts crafting even with insufficient materials; missing ingredients are awaited
A Complete Adventure
Covers all voltage tiers from LV to MAX
Quest support up to UEV tier
300+ multiblock structures, from Electric Blast Furnaces to Stairway to Heaven
Machine operation particles, energy transmission beams, and dynamic reaction displays
Fly immersive aircraft to explore dungeons and obtain rare resources
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