RLCraft is one of the most demanding modpacks to host well, not because it needs huge amounts of RAM, but because of how many entities and structures it generates. Picking the wrong plan means constant lag, tick warnings, and crashes even with "enough" memory on paper.
What actually matters for RLCraft hosting
- RAM for entity and chunk data (Lycanites Mobs spawns far more than vanilla)
- CPU clock speed, since RLCraft is single-thread heavy like most Forge 1.12.2 modpacks
- NVMe storage, because RLCraft's custom biome generation and Battle Towers write a lot of chunk data during pre-generation
A host with slow shared CPUs will struggle with RLCraft even at 8-10GB RAM, while a host with modern high-clock cores can run it smoothly on less.
Recommended plans by group size
| Group size | Plan | RAM | Notes |
|---|---|---|---|
| 1-4 players | MC Gold | 5GB DDR4 | Fine for a small survival group |
| 5-10 players | MC Diamond | 8GB DDR4 | The sweet spot for most RLCraft communities |
| 10-20 players | MC Special 1 | 12GB DDR4 | For public or semi-public RLCraft servers |
| 20+ players | MC Special 2 | 15GB DDR4 | Large communities with heavy exploration |
On Space-Node's Minecraft plans, MC Diamond (8GB DDR4) is the most common recommendation for RLCraft, since it covers both the RAM headroom for Lycanites Mobs spawning and enough room to pre-generate terrain without swapping.
Setup checklist before you buy
- Confirm the host supports Forge on Minecraft 1.12.2 with Java 8, not just modern versions
- Ask if the panel allows custom JVM arguments (RLCraft benefits from tuned garbage collection flags)
- Check if pre-generation plugins like Chunky are supported, RLCraft's world generation is expensive on first load
- Look for a host with DDoS protection if the server will be public, RLCraft communities attract dedicated long-term players who don't want downtime
Common mistake: overbuying RAM
A lot of players assume RLCraft needs 16GB+ because other modern modpacks do. In reality, RLCraft runs on an older, lighter Minecraft version, so the RAM ceiling is lower than ATM10 or similar 1.20+ packs. The bottleneck is usually CPU and entity load, not memory. Spending on a higher CPU tier plan gives more real-world performance than doubling RAM alone.
For the full technical setup, including difficulty configs and performance tuning, read the RLCraft server setup guide.