Your map seed determines everything about your Rust world - monument placement, terrain elevation, biome distribution, and resource density. Choosing the right seed sets the foundation for your server's gameplay.
Understanding Seeds
A Rust seed is a number that the procedural generation algorithm uses to create the world. The same seed + same map size = identical world every time. Change either, and you get a completely different map.
Seeds range from 1 to 2147483647. Popular seeds are shared in communities, but any random number works.
What Makes a Good Seed
Monument Distribution
Monuments are the gameplay hubs of Rust - players need to access them for progression. A good seed has:
- Monuments spread across the map (not clustered)
- Key monuments (Launch Site, Military Tunnels, Oil Rig proximity) accessible from multiple directions
- Road connections between major monuments
- No monuments placed in awkward terrain (underwater, on cliff edges)
Terrain Variety
Good seeds have a mix of:
- Flat areas for base building
- Mountains for defensive positions
- Rivers and lakes for water access
- Forest areas for wood farming
- Desert areas for sulfur/metal nodes
Coastline
Rust's coastline affects:
- Oil Rig accessibility
- Boat spawns
- Fishing villages
- Coastal base building opportunities
A seed with varied coastline (bays, peninsulas, islands) creates more interesting gameplay than a smooth circular coast.
Map Size by Player Count
| Concurrent Players | Map Size | Density Feel | |-------------------|----------|-------------| | 10-30 | 2500-3000 | Packed, lots of PvP | | 30-75 | 3000-3500 | Active, balanced | | 75-150 | 3500-4250 | Spacious, room to build | | 150-300 | 4250-5000 | Spread out, journey between monuments |
Testing Seeds
RustMaps.com
Enter a seed and map size on RustMaps.com to see a full preview - monuments, terrain, biomes, and resource distribution - without running a server.
Test Server
Spin up a quick test instance on Space-Node, load the seed, and fly around in admin mode. 10 minutes of aerial scouting tells you more than any preview tool.
Seed Selection Tips
- Generate 5-10 previews, compare them, pick the best
- Check monument count - some seeds randomly get fewer monuments
- Verify road connections - important for vehicle gameplay
- Look for natural chokepoints - creates interesting PvP zones
- Avoid seeds with spawn points in bad locations - beaches should be accessible
Wipe Day Seed Strategy
Same seed every wipe: Players learn the map, develop favorite spots, and create deeper meta-game. Downside: experienced players have an advantage.
New seed every wipe: Fresh exploration experience. No one has prior knowledge advantage. Downside: less familiar, players can't plan.
Rotated seeds: Maintain a list of 3-4 tested seeds. Rotate through them. Players occasionally revisit known maps, keeping things fresh without total randomness.
Most successful servers use a new seed each wipe but pre-test it before wipe day to ensure quality.
