The Create mod is one of the most popular Minecraft mods for a reason - its mechanical contraptions, trains, and automation feel incredible to build and use. But on a multiplayer server, poorly optimized Create setups can tank performance. Here's how to run Create well on a server.
Server Requirements for Create
Create is moderately demanding. A survival server with Create (and its typical addon mods like Create: Additions or Create: Crafts & Additions) needs:
| Players | Minimum RAM | Recommended | CPU Priority | |---------|------------|-------------|-------------| | 1-5 | 4GB | 6GB | Medium-High | | 5-15 | 6GB | 8GB | High | | 15-30 | 8GB | 12GB | Very High |
CPU matters more than RAM for Create. Every active contraption - rotating shafts, moving assemblies, trains - adds processing load to the server tick. The Ryzen 9 7950X3D's single-thread performance handles this well, which is why we use it for all Space-Node Minecraft plans.
Contraption Performance Tips
Limit Contraption Size
Large moving contraptions (100+ blocks) are expensive to process because the server recalculates collision and rendering for every block each tick. Set server rules or use config limits:
In Create's common config:
maxBlocksMoved = 128
maxBlocksAttached = 256
Train Network Management
Create trains are smooth and fun, but each active train is a continuously moving contraption. For servers with extensive rail networks:
- Trains only process when chunks are loaded - this is good
- Encourage stations in populated areas, not spread across the map
- Consider chunk-loading only key junction points
Rotating Contraption Optimization
Windmills, waterwheels, and mechanical setups that run constantly consume less CPU than moving contraptions, but they still add up. A factory with 50 spinning shafts is noticeable.
Encourage players to:
- Use one large water wheel instead of many small ones
- Consolidate shaft networks
- Turn off unused machines with clutches
Common Create Server Issues
Server lag during contraption assembly: When a player first activates a large contraption (super glue + wrench), the server calculates the entire block structure. This can cause a brief lag spike for very large builds.
Fix: Set maxBlocksMoved lower and communicate limits to players.
Trains disappearing: Usually a chunk loading issue. Trains that cross into unloaded chunks will stop until those chunks load again.
Fix: Use chunk-loading mods or Train Observer blocks from Create to maintain loading.
Item processing lag: Mechanical crafters, presses, and fans processing items create entities. Large-scale processing lines can generate hundreds of item entities.
Fix: Use encased fans with filtering instead of open fans, and collect outputs into chests rather than leaving items on belts.
Recommended Create Server Modpack Additions
For pure Create servers, add these companion mods:
- Create: Steam 'n' Rails - Extended train features
- Create: Crafts & Additions - Electricity integration
- Create: Connected - Functional roller coasters
- JEI/REI - Recipe viewer (essential for learning Create)
- Jade/WAILA - Block info overlay
- Spark - Performance monitoring
Keep the mod count focused. Every extra mod adds memory and processing overhead. A lean Create server with 20-30 mods performs better than a kitchen-sink pack with 200 mods and Create thrown in.
Server Rules for Create Performance
Post these rules to keep your server running smooth:
- Maximum contraption size: 128 blocks
- Maximum active trains per player: 3
- No infinite item loops without collection (items on ground kill TPS)
- All processing must have output storage (no overflowing belts)
- Turn off unused machinery when AFK
These aren't just arbitrary limits - each one prevents a specific performance problem that we've seen tank Create servers.
