How Much RAM Does a TerraFirmaGreg-Modern Server Need?
TerraFirmaGreg-Modern merges TerraFirmaCraft's realistic geology and metallurgy with GregTech's multiblock tech progression on Forge 1.20.1 — see the TerraFirmaGreg-Modern pack page for the full mod list. It's one of the most demanding packs in the catalog, with no close sibling to compare it to, and it is not a beginner-friendly pack. Here's how much RAM to budget for depending on group size. Finnish players: Minecraft-palvelin hosting is our native-language page. German players: Minecraft-Server mieten covers the same hosting auf Deutsch. Svenska spelare: Hyra Minecraft-server täcker samma hosting på svenska.
6 GB
Bare minimum for solo testing or a single player exploring TFC's early geology — expect slow chunk generation and no headroom once GregTech machines start running.
8 GB
The best starting point for most servers — this is TerraFirmaGreg-Modern's own recommended RAM floor, enough for a small group running both TFC's world simulation and GregTech's machines without stalling.
12 GB
Safer for a mid-size active group once players are deep into GregTech's multiblock chains and TFC's metallurgy — more headroom for the extra entities, machine processing, and chunk loading that comes with it.
16 GB
For 10+ players or a long-running world with extensive GregTech factories and fully explored TFC terrain, where both systems' memory footprint keeps growing over time.
Want a faster estimate?
Use CoalHost's RAM calculator, then start from the plan that matches your player count and expected world activity.
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